With two variables!
A two-tariff meter is installed in Ivan Petrovich’s apartment, which allows you to take into account electricity consumption at different tariffs during the day and at night. In January, electricity consumption during the day was 200 kilowatts (kW), and at night 20 kW. According to the receipt, Ivan Petrovich paid 640 rubles. In July, electricity consumption during the day was 20 kW, and at night 10 kW. According to the receipt, Ivan Petrovich paid 380 rubles. Calculate the daytime and nighttime electricity consumption rates. (The tariff is the price of 1 kilowatt of electricity)
A two-tariff meter is installed in Ivan Petrovich’s apartment, which allows you to take into account electricity consumption at different tariffs during the day and at night.In January, electricity consumption during the daytime was 200 kilowatts (kW), and at night - 20 kW. According to the receipt, Ivan Petrovich paid 640 rubles. In July, electricity consumption during the daytime was 20 kW per hour, and at night 10 kW. According to the receipt, Ivan Petrovich paid 380 rubles. Calculate the daytime and nighttime electricity consumption rates. please help someone please I beg you I will be very grateful solve the problem using the equation
A two-tariff meter is installed in Ivan Petrovich’s apartment, which allows you to take into account electricity consumption at different tariffs during the day and at night.time. In January, electricity consumption during the daytime was 200 kilowatts (kW), and at night - 20 kW. according to the receipt I paid 640 rubles. in July in the daytime it was 20 kW and at night - 10 kW. According to the receipt, Ivan Petrovich paid 380 rubles. calculate day and night electricity consumption rates
In January, electricity consumption during the day was 200 kilowatts (kW), and at night - 20 kW. According to the receipt, Ivan Petrovich paid 640 rubles. In July, electricity consumption during the daytime was 20 kW, and at night - 10 kW. According to the receipt, Ivan Petrovich paid 380 rubles. Calculate the daytime and nighttime electricity consumption rates. (The tariff is the price of 1 kilowatt of electricity).
1. On average, a citizen of A consumes 120 kWh of electricity per month during the day, and 185 kWh of electricity at night. EarlierA. had a single-tariff meter installed in his apartment, and he paid for all electricity at a rate of 2.40 rubles. per kWh. A year ago, A. installed a two-tariff meter, while daily electricity consumption is paid at a rate of 2.40 rubles. per kWh, and night consumption is paid at a rate of 0.60 rubles. per kWh. During 12 months, the consumption mode and electricity payment tariffs did not change. How much more would A. have paid for this period if the meter had not changed? Give your answer in rubles.
From this article you can learn the features of such a device as a two-tariff electricity meter: the main types of designs, their advantages and disadvantages, purchase prices. The text describes the procedure for installing the device and related formalities, rules for handling, checking it and taking readings. The article examines in detail devices with different numbers of phases and recommendations for calculating energy consumption.
With the increase in electricity tariffs in 2017, many owners of apartments and private houses are seeking to reduce the cost of paying utility bills. There are several options to solve this problem. Some resort to installing energy-saving equipment of the latest generation. Others prefer to buy a two-tariff electricity meter, the price of which, although higher than the prices of standard devices, nevertheless allows for savings in subsequent operation.
Note! In terms of external characteristics, a two-tariff type meter is practically indistinguishable from a conventional electronic device. The only difference is in its readings, which display data for night and daytime separately. Since the dimensions of the device are standard, a two-tariff electricity meter can be installed in the same place where a conventional device was previously located.
According to updated electricity tariffs, from January 1, 2017, the population of the Moscow region in the first half of the year will pay 1 kW of electricity at a price of 4.81 rubles. In the second half of the year (from July 1), the cost of a unit of energy will increase to 5.04 rubles.
Two-tariff electricity meters: at what point does night time switch to day time?
At night, you may notice that working incandescent lamps in the house shine brighter than in the evening. This trend is especially typical for houses in rural areas located far from the transformer substation. In some cases, the differences can be so great that obtaining high-quality electricity is only possible through a voltage stabilizer.
In integrated energy systems, which are typical for apartment buildings, to solve this problem it is enough to buy a two-tariff electricity meter, which is what most of the population does. The use of such devices assumes that 1 kW of electricity will have different costs depending on the time of day.
In the daytime, the cost of 1 kW charged by a two-tariff device is slightly higher than when using a conventional meter. This period lasts from 7:00 to 23:00. Next, a preferential tariff comes into force, which allows you to significantly save energy costs. Moreover, the cost of 1 kW is several times less. This period lasts from 23:00 to 7:00.
Note! Power plants encourage electricity consumers to use high-power household appliances at night. As a result, apartment owners receive savings, and power plants evenly distribute the load on equipment, avoiding overloads during peak periods.
How do two-tariff electricity meters work?
The principle of operation of separate or differential tariffs is very simple. To understand how multi-tariff type devices work, you can imagine several standard meters combined in one device. Each of these units calculates electricity exclusively within its own time interval, after which the next device comes into operation. In this case, readings for each device are taken separately, calculated taking into account tariffs, and the results are summarized.
Of course, it is impossible to organize the timely launch of several metering devices using a mechanical meter. For this reason, multi-tariff devices, including two-tariff designs, have only an electronic control option. These units are equipped with a display where all the information is located.
Multi-tariff meters have a built-in clock for convenient switching of the device between different tariff zones, as well as a memory that allows you to save this data. Most often, each zone is marked with the letter “T” with a certain numerical index. The “T” marking without a numerical index displays the total amount of electricity consumed in kilowatts. This value would be displayed by the standard counter if one was installed.
Helpful advice! The total figure is not needed to calculate the differential tariff, but it can be used to estimate the benefit by calculating the result using the usual system.
Advantages and disadvantages of installing two-tariff meters
Why is it profitable to buy a two-tariff type electric meter:
- Significant savings in money - the cost of installing an electric meter and purchasing it pays off within a year.
- Unloading power plants - energy supply companies will resort to repairing equipment less often, and its further operation in this mode will save fuel spent on creating electricity.
- Improving the environmental situation - the amount of emissions from fuel combustion into the atmosphere is reduced due to the absence of overloads.
Most often, electricity consumers rarely ask questions about the environment and rationalization of electricity supplies, so the main advantage of two-tariff devices can be called their cost-effectiveness.
The operation of multi-tariff devices also has its disadvantages:
- Not in all regions of the country the difference between day and night tariffs is large. The cost of 1 kW of energy at night is 15% less than during the day.
- After installing an electricity meter, the cost of energy consumption will decrease only if the household appliances are used correctly. For example, it is advisable to use the dishwasher or washing machine only after 23:00.
Two-tariff electricity meters: customer reviews
Having outlined the advantages and disadvantages of two-tariff designs, we can move on to reviewing reviews from the forums. Below are some of them:
“Naturally, there are significant savings if you use electricity like my grandmother. After 23:00 she turns on the water heater, washing machine, and sometimes irons. In the morning there is always hot water, and in the evening everything starts again. Of course, I’m not so fanatical, but I also try to stick to this system in order to save money. At least when I don’t forget.”
Svetlana Strochkina, Ekaterinburg
“Our entire district has installed two-tariff meters. There is no other way to keep utility bills within reason. The whole area does laundry at night. It turns out that no one is offended.”
Georgy Makoveenko, Moscow
Note! Installing a two-tariff device may not always be advisable. In some cases, such devices can become a source of inconvenience and additional costs.
There are also negative reviews on the forms:
“The total cost of installing an electric meter in my case was 1,400 rubles. Literally a month and a half later, my entire house switched to this type of accounting equipment. I'll tell you the pleasure is dubious. With a difference in payment of only 0.13 rubles. per 1 kW per month I get 12 rubles. savings. Taking into account how much electricity meters cost, it turns out that I will be able to return the money spent only after 10 years. This is despite the fact that it is not possible to achieve savings every month. Completely disappointed."
Evgeny Dorokh, St. Petersburg
“My neighbor used this. Despite the promised savings, in reality the bills add up if you, like a robot, do not control your every step and do not plan washing and ironing. You can’t lure me in with such “pleasure.”
Igor Skorkin, Moscow
Two-tariff electricity meters: prices and types of designs
Metering devices with differential tariffs look the same in appearance as single-tariff types of devices. The main differences are in the following parameters:
- number of phases (there are three-phase two-tariff electricity meters and single-phase ones);
- maximum power level (current);
- accuracy class;
- number of zones;
- type of fixation (mounting on a DIN rail or by bolting);
- presence of interfaces for communication (electricity meters with remote reading);
- type of digital display;
- additional functionality.
Note! In modern modifications of multi-tariff meters, in addition to the day-night mode, additional settings are provided that allow accounting for several time zones in a day and even several days in a week. Thanks to this, users have the opportunity to save electricity on profitable days, but provided that the electricity supplier provides a similar tariff. Information about this must be indicated in the contract.
Recommendations for choosing a two-tariff electricity meter
When choosing a device for your home, you should pay attention to the capabilities that the meter has. In addition to basic data, metering devices can measure:
- voltage;
- instant power consumption;
- frequency
Some modifications have built-in memory drives that allow you to save data from previous periods, and protection against power surges in the network.
When purchasing a device with differential pricing, it is important to clarify whether the selected model is approved by the state registry. Options and parameters of devices must comply with the current tariff plan. To ensure this, it is best to contact your local energy supply company for advice.
It is prohibited to buy metering devices from random sellers or companies with a dubious reputation. The company must have permission to sell such equipment and relevant documentation.
Features of single-phase two-tariff meters
Single-phase two-tariff meters are intended for domestic use. The population is gradually switching from outdated equipment to newer two-tariff electronics. Buyers give preference to domestic models.
The list of domestic producers includes the following enterprises:
- Moscow Electrical Instruments Plant;
- Concern Energomera;
- Nizhny Novgorod plant named after. M.V. Frunze;
- NPF Mossar;
- Saransk Instrument-Making Plant, etc.
Note! The “Mercury” range of devices supports all standards required for accounting equipment.
A single-phase device outputs 220-230 V. Because of this, there are restrictions on electricity consumption - 7-10 kW. These devices are connected to a single-phase two-wire network. It is possible to connect to a two-phase network, but in such cases, each phase must have its own device.
Prices of single-phase two-tariff electricity meters
Prices for single-phase metering devices with two tariffs from different manufacturers are almost the same. The final cost of the device depends on the store that sells the equipment. The difference varies between 10-40%. Using the table below as an example, you can compare prices for single-tariff and multi-tariff Mercury equipment designed for one phase.
Average prices for single-phase equipment Mercury:
| Device model | price, rub. |
| Single tariff devices | |
| 201.5 | 610 |
| 201.7 | 586 |
| 201.8 | 648 |
| 201.6 | 628 |
| 201.2 | 838 |
| 201.22 | 2463 |
| 201.4 | 838 |
| 202.5 | 823 |
| Multi-tariff devices | |
| 203.2T RBO | 4445 |
| 203.2T LBO | 5490 |
| 203.2T GBO | 7280 |
| 200.02 | 1660 |
| 200.04 | 2927 |
| 206N | 1470 |
| 206 RN | 1687 |
| 206 PRNO | 2087 |
| 206 PLNO | 3533 |
The table shows how big the difference is between the prices of single-tariff and multi-tariff devices designed for one phase. Therefore, when purchasing a device, you need to make sure that its use will be profitable taking into account the current tariffs of the electricity supplier, otherwise the costs of purchasing metering equipment will not pay off.
Related article:
Single-tariff and multi-tariff devices for metering electrical energy. Sequence and basic rules for transmitting testimony.
Single-phase device connection diagram
Today, two-tariff equipment is present in almost all new buildings. Therefore, most residents, when moving into a new house, can immediately take advantage of all the beneficial advantages of the differential metering system.
As for other consumers, they can turn to Gosenergonadzor when they need to change the electric meter; the service life of the electric meter does not matter. If previously the device had to be replaced once every 16 years, today, if you want to replace the metering equipment, you just need to write an application to the energy supply company. Specialists perform a similar procedure within one day.
Note! Some energy supply companies offer comprehensive services to consumers. When switching to a differential tariff system, the organization will undertake the purchase of the device, its installation and configuration. This procedure can be performed independently.
Before you begin self-installation of single-phase equipment, you should carefully study the operating instructions and connection diagram of the device. This information can be placed in the instructions supplied with the meter, or located on the back of the terminal cover.
The terminal block has 4 contacts:
- phase input;
- phase output;
- entering zero from the external network;
- output zero.
For the procedure to be completely safe, it is necessary to turn off the machine, plugs or switch. If the input cord is supplied to the meter, the line should be disconnected. When connecting wires, you must be guided by the sequence of contacts indicated earlier.
Features of three-phase two-tariff meters
Three-phase two-tariff electricity meters Mercury 230, like similar devices from the previously mentioned manufacturers, are used primarily in enterprises that use three-phase electricity. In addition to the function of differential electricity counting at night and during the day, these devices perform metering for each phase separately.
Some universal models provide the ability to collect data on both active and reactive energy. There are modifications that allow you to set a consumption limit. After a preset amount of electricity has expired, the device automatically turns off the power supply.
Note! It is better to entrust the installation of the meter to the hands of professionals. The energy supply company's specialists are thoroughly familiar with the design features of the devices, which allows them to make the correct connection and avoid fines. In this case, all requirements of the PUE are guaranteed to be supported.
The device installation process is as follows:
- dismantling the old device;
- installation of a three-phase multi-tariff device;
- testing the device software for functionality and setting it up for the appropriate tariff plan;
- connection check;
- installation of a seal.
Types of three-phase multi-tariff meters
There are several types of three-phase multi-tariff meters on sale:
- Direct connection - the device is connected to a 380 or 220 V network directly, as is the case with single-phase devices. The throughput capacity of such units reaches up to 60 kW. The maximum current limit is 100A. Installation of direct connection structures involves the use of wires with a small cross-section.
- Semi-indirect connection - to connect devices, transformers are needed that allow them to consume energy from a high-power electrical network. Calculation of electricity using two-tariff semi-indirect meters involves identifying the difference between the current readings and the previous ones. Then the resulting result must be multiplied by the transformation coefficient.
- Indirect connection - connected to the network via current and voltage transformers. Most often used in large-sized enterprises, since the structures can account for energy within high-voltage connections.
Note! Installation of any of the listed meters is accompanied by difficulties affecting the connection procedure. To install single-phase devices, a universal algorithm is used, and the connection diagrams for three-phase electricity meters can be different.
Installation diagram for direct connection devices
Direct switching meters are very easy to install. Their installation diagram is in many ways similar to the algorithm for connecting single-phase devices. All necessary information is indicated in the technical data sheet, which is attached to the device. In this case, it is very important to follow the order of connecting each of the wires, which differ in color. In addition, you need to monitor the placement of even and odd numbers. The order of connecting the wires according to the diagram is shown in the table.
Order of connecting wires:
| Wire number | Phase | Wire color | Connection type |
| 1 | A | yellow | entrance |
| 2 | A | yellow | exit |
| 3 | IN | green | entrance |
| 4 | IN | green | entrance |
| 5 | WITH | red | entrance |
| 6 | WITH | red | exit |
| 7 | zero | blue | input |
| 8 | zero | blue | exit |
Devices of indirect and semi-indirect connection: installation diagram
Semi-indirect metering devices are connected via current transformers. There are many installation schemes for this equipment.
The most popular schemes:
- The ten-wire circuit is the simplest and most popular option. To make this connection correctly, you must adhere to the order of placement of the 10 wires. From right to left, the first 3 wires are connected to phase A, then the second three wires are connected to phase B, and the next 3 are attached to phase C. The last 10th wire is neutral.
- Connections with a terminal box - this option is more complicated than the previous one and it involves connecting a metering device using test blocks.
- The “Star” circuit is difficult to implement, but requires fewer wires than the previous version. To begin with, the first unipolar outputs belonging to the secondary winding need to be assembled into a common point. The next three, coming from other exits, should be directed to the counter. After this, the current windings are connected.
Important! Indirect switching devices are not intended for installation in residential premises. They are used in industrial enterprises where equipment installation is carried out by highly qualified electricians.
Three-phase two-tariff electricity meters: prices
Using Mercury equipment as an example, the table below shows for comparison how much single-tariff and multi-tariff electricity meters with a three-phase connection type cost.
Average prices for Mercury equipment:
| Device model | price, rub. |
| Single tariff devices | |
| 231 AM-01 | 2024 |
| 230 AM-01 | 2196 |
| 230AM-03 | 2196 |
| 230 AM-00 | 2196 |
| 230 AR-01 | 3791 |
| 230 AR-02 | 3791 |
| 230 AR-01 CL | 4880 |
| Multi-tariff devices | |
| 231 AT-01I | 2910 |
| 230 ART-01 CN | 4474 |
| 230 ART-00 CN | 4474 |
| 234 ART-01 P | 5578 |
| 234 ART-01 PO | 6345 |
| 234 ARTM-01 POB.R | 8856 |
| 234 ARTM-02 PB.R | 8162 |
| 234 ART-01 OL1 | 7633 |
| 236 ART-01 PQL | 5445 |
The table shows that three-phase meters with a differential metering system are much more expensive than single-tariff meters. But not all residential premises may benefit from installing multi-tariff equipment, just as it is not always justified to purchase budget structures with a single tariff.
Multi-tariff or single-tariff meter: which is better to install the device
The main difference between a three-phase device is that it is installed in a four- or three-pass AC network. The standard voltage for such a system is 380 V.
Three-phase and single-phase metering devices are used in different areas:
- Single-phase equipment is installed in residential premises and office buildings, in city apartments, garages, as well as in country houses and cottages. These devices are simple and convenient, characterized by a simplified reading circuit.
- Three-phase equipment is suitable for industrial enterprises. It can also be installed in buildings with technical equipment that consumes large amounts of electrical energy. These designs are more complex, but are characterized by high measurement accuracy.
Note! Three-phase equipment can be installed on a single-phase network.
If you have a choice between purchasing a single-phase device and purchasing a three-phase meter, it is better to give preference to the former. Devices designed for three phases have a high power level and high voltage. For this reason, they require more distribution current, and their operation is dangerous if a short circuit occurs in the system.
How much does it cost to change an electricity meter?
Many city apartment owners are switching to two-tariff equipment, which allows them to save money. By using the services of specialists who have the appropriate license, you can not only install the device efficiently and safely, but also reprogram the old meter to account for two tariffs, if it has such a function.
Average service prices:
| Name of service | price, rub. |
| Replacement of a single-phase single-tariff device (installation and dismantling) | 2000 |
| Replacement of a single-phase multi-tariff device (installation and dismantling) | 2000 |
| Installation or replacement of current transformers (limited to 1000 V) | 3200 |
| Replacement of a three-phase direct connection device (installation and dismantling) | 3500 |
| Replacement of a three-phase indirect switching device (installation and dismantling) | 3500 |
| Tariff programming | 1000 |
| Programming the device when switching to summer or winter time | 1000 |
| Mercury 200.02 (multi-tariff single-phase device) | 1800 |
| Mercury 230 ART-01 CN (multi-tariff direct connection device) | 4700 |
How to take readings from a two-tariff electricity meter
Meters with two tariffs display electricity data as accurately as possible. The information is displayed on the display. Moreover, not only the total amount of energy consumed is reflected, but also the amount of electricity used during a certain period of time, for example, day or night. Taking this into account, the apartment owner can draw up his own schedule for using powerful appliances in order to minimize the amount of money spent on utility bills.
Note! Metering devices with a differential tariff system inform the homeowner not only regarding the readings. They display the degree of load on the system, so you can rationalize the energy consumption process.
Some users will find the process of reading a multi-tariff meter difficult due to the presence of many numerical values on the display. However, the data processing system is actually very simple if you look at it.
How to take readings from two-tariff electricity meters
To take readings from the electric meter, you will need a pen and a blank sheet of paper. The accounting device displays the letter “T” with digital markings 1, 2 or 3. The device has an “Enter” button for taking readings at different tariffs.
Reading diagram:
- Write down the daily rate data on a piece of paper (letter “T” marked 1).
- Get readings for the night tariff by pressing the “Enter” button.
- A “T” will appear on the screen labeled 2. Record these readings.
- Below, write down the data received for the past month.
- Based on past and new data obtained, calculate the number of kilowatts of electricity consumed for the current month. To do this, you need to subtract the readings for the last month from the latest data.
- Perform cost calculation. In this case, the number of kilowatts is multiplied by the cost of 1 kW for each tariff separately.
- Add the resulting amounts for the night and day rates.
Important! When taking readings to calculate the cost, you do not need to rewrite the numbers after the decimal point. They will complicate calculations and may cause an error that will result in an overpayment.
How to fill out a receipt for electricity payment correctly
Not every energy supply company tracks the documentation process, so very often consumers are forced to fill out receipts themselves.
Scheme for filling out receipts:
- Bank details are entered. These data are specified in the contract for the supply of electrical energy.
- The consumer data is filled in, i.e. payer. The list of this information includes the consumer's address, full name and personal account number.
- The period of time for which payment will be made (month) is recorded.
- The first line of the table is intended for entering data on the daily tariff “T1”, both for the last month and for the current one. The tariff rate and the amount to be paid are also indicated here.
- The second row of the table is filled in in a similar way with data for the night tariff “T2”.
- The “Total” column summarizes all data payable according to tariffs.
Most often, the list of required information is limited to the specified data. The receipt form must be approved by the energy supply company. In some cases, it is necessary to record the model of the metering device. At post offices where utility bills for electricity are paid, consumers can receive advice on how to correctly fill out receipts.
In addition, there is a hotline that you can call to resolve such issues. Many companies have resources on the Internet where users are provided with consulting support.
Helpful advice! In some cases, it is allowed to transmit information on the electricity meter via the Internet. However, such a system only works if data is transferred monthly to the energy supply company.
Transmitting readings from an electric meter: basic methods
To date, several convenient systems have been developed for transmitting data from electricity meters to the service company:
- Take the data to the service company, having first filled out a receipt. It is advisable to pay the invoice on the same day.
- Transfer data remotely via the Internet. To do this, you need to make a calculation, go to the company’s official website on the Internet, log in to the website and fill out the appropriate form.
- Owners can simply use the automatic data transfer feature. By activating this device option, you do not need to make payments to the service company. All actions are automated.
According to the updated legislation, owners of apartments in multi-storey residential buildings, as well as housing in the private sector, are not required to transfer data. All information from accounting devices can be sent in a way convenient for each consumer at the end of the month. If the owner of the meter has recently become a user of the services and does not have receipts confirming payment, an unauthorized method is allowed. This may include email, answering machine and SMS messages. If you use the SMS transmission method, you will definitely need a personal account number.
Taking this into account, we can come to the conclusion that two-tariff meters are beneficial in most cases. At the same time, the reading system is no more complicated than that of older generation devices.
“I live in house No. 57 on Soyuznaya Street. At the end of 2012, a massive installation of apartment electricity meters took place in our house. Many residents, in order to save money, installed two-tariff meters, the cost of which is higher than single-tariff meters. The house is equipped with a single-tariff meter. We fill out receipts in which we indicate two meters (day and night), but we are charged at the daily rate, citing the fact that the common house meter has a single tariff. Help me find the truth. We contacted our management company "GUK No. 1", where they told us that the calculations were correct, and in order to calculate at two tariffs, we also need to install a two-tariff communal meter. However, we were not told about this before installing individual meters.” T. V. VOLKOVA (Kursk).
The specialists of the Kurskenergosbyt department of the Branch of IDGC of Center JSC - Kurskenergo answer: “According to paragraph 40 of the “Rules for the provision of utility services to owners and users of premises in apartment buildings and residential buildings”, approved by the Decree of the Government of the Russian Federation on May 6, 2011 No. 354, the consumer Regardless of the chosen method of managing an apartment building, as part of the payment for utility services, it pays for both individual electricity consumption and consumption for general house needs. If an apartment building is equipped with a single-tariff metering device, and the apartments in it are equipped with two-tariff electricity metering devices, individual consumption is paid according to the installed two-tariff metering device, and general household needs are paid for using a single-tariff metering device.
Subparagraphs h) and i) of paragraph 31 state that the consumer has the right to decide on the installation of an individual, common (apartment) or room metering device that meets the requirements of the legislation of the Russian Federation on ensuring the uniformity of measurements, including a metering device whose functionality makes it possible to determine volumes of consumed utility resources differentiated by time of day or other criteria reflecting the degree of use of utility resources, even if such an individual or common (apartment) metering device differs in functionality from the collective (community) metering device with which an apartment building is equipped, and apply for performing actions to install such a metering device to persons carrying out the relevant type of activity, and also require the contractor to take actions to commission the installed individual, common (apartment) or room metering device, even if such a metering device differs in functionality from a common house device accounting, which is equipped with an apartment building. Consequently, the decision to install a one- or two-tariff communal metering device is made by residents.
According to paragraph 7 of the order of the FTS of the Russian Federation dated August 6, 2004 No. 20-E/2 (as amended on December 26, 2011) “On approval of the Guidelines for calculating regulated tariffs and prices for electric (thermal) energy in the retail (consumer) market ", the consumer independently chooses one of the possible tariff options to pay for consumed electricity. To switch to electricity metering differentiated by zones of the day (day-night tariff), the consumer must equip his home with a two-tariff electricity meter, and also notify the energy supply organization at least 10 days before the start of the billing month following the current one (sample application – Appendix No. 1) on the selection of the appropriate tariff option for making payments for electrical energy (with the introduction of appropriate changes to the agreement with the specified organization in the prescribed manner).
As for the apartment building at the address specified in the application, of all the consumers of electrical energy living in this apartment building, only one of the tenants or homeowners contacted the Kurskenergosbyt branch of the branch of IDGC of Center, JSC - Kurskenergo with a notification of choice a two-zone “day-night” tariff, differentiating electricity metering by zone of the day (the so-called two-rate “day-night” tariff). This subscriber's electricity consumption is charged in accordance with the tariff plan he has chosen.
No notifications about the choice of a tariff that differentiates electricity consumption by zone of the day were received from the remaining residents of the specified house to the Kurskenergosbyt branch of the Branch of IDGC of Center, JSC - Kurskenergo, and therefore the power engineers have no legal basis for tariffing the consumed electricity according to tariff that differentiates electricity metering by day-night zones.
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It is not clear at what tariffs RSO will charge the management company for the electricity consumed by residents? Namely, the social norm?
Consumed electricity (meter) is a familiar and mandatory item in any home, private or multi-apartment. Increasingly, in homes and businesses, outdated electric meters with a spinning disk are being replaced by a new generation electronic meter - a two-tariff electricity meter. Feedback from citizens who have already switched to separate metering of consumed electricity is quite contradictory.
An impressive portion of electricity consumers talk about a fairly quick payback for installing a two-tariff meter: they call it a period of 6 to 18 months. However, negative reviews are also found. The main complaint is that the two-tariff metering system did not justify itself and turned out to be less profitable than the energy supply companies claimed. Why does this happen, and to what extent can the installation of such a device as a two-tariff electricity meter be justified?
Two-tariff meter - what is it?
Electronic two-tariff refers to energy metering devices of a new generation. The functions of this type of meter allow you to keep separate records of consumed electricity based on the time of day when consumption occurred. Why is such a function needed?
Energy companies have long noticed the “zoning” of electricity consumption. The main “peak” of energy consumption traditionally occurs in the morning and evening - at this time, people, getting ready for work or returning home in the evening, use the maximum number of lighting fixtures and household appliances. The minimum occurs at night. Such “fluctuations” create inconvenience for energy companies, forcing them to work with additional load during peak hours. And it was precisely with the goal of somewhat “unloading” energy companies that multi-tariff and two-tariff metering schemes were invented.
Two-tariff accounting is that the day is conditionally divided into “day” and “night” time. In this case, electricity consumed “at night” is paid at a price lower than during the “day”. Thus, it becomes beneficial for citizens to slightly adjust the operating time of their home energy-consuming appliances.
For what periods of time is accounting kept using a two-tariff meter?
With a two-tariff electricity metering scheme, the day is distributed as follows:
- Day zone - the period from 7:00 a.m. to 11:00 p.m.
- The night zone, respectively, is from 23:00 to 7:00.
Who benefits from installing a two-tariff meter?
So, the two-tariff metering system offered by energy companies is, at first glance, quite simple and profitable. Electricity suppliers, “selling” electricity at night at a price lower than during the day, partially compensate themselves for this difference by slightly increasing the “daytime” tariff. Then why are all the owners of residential and industrial premises in no hurry to switch to two-tariff metering devices? There are several reasons. One of them is the usual Russian “running around with documents”, which not everyone has the time or desire to deal with. Another reason why property owners are most often afraid to install a two-tariff electricity meter is reviews from people who claim that the “day/night” tariff does not pay off or pays off very slowly.
What is the reason for the appearance of such reviews? The main thing that those who are just planning to install a two-tariff electricity meter should know: people’s reviews about the benefits and payback time of switching to such a metering scheme in different regions differ significantly due to the fact that the “day” and “night” tariffs set differ energy companies in each region. So, for example, in the Russian capital and region the price of a kilowatt for the urban population during the day is 5.57 rubles, at night - 1.43 rubles. Such a noticeable difference makes installing a two-tariff meter incredibly profitable.
Another example: if a citizen lives in the Volgograd region, for him the day/night ratio for 2016 will be 2.81/2.01 rubles. In this case, the difference is not so noticeable. And if we take into account that during the day a citizen “overpays” for electricity compared to a single-tariff scheme, the benefits of installing a two-tariff meter are quite dubious.
Therefore, before installing a two-tariff electricity meter, it is worth clarifying the difference between the day and night tariffs and deciding for yourself whether it is worth switching to a similar metering scheme at all.
How to install a two-tariff meter
The process of switching to a two-tariff system for metering consumed electricity is actually much simpler than is commonly believed.
The first step is to buy an electronic meter with the function of setting two tariffs. It is best to purchase the device directly from a specialist called to replace the old meter with a new one. If for some reason the owner of the premises wants to purchase a metering device himself, then this must be done exclusively in a store that specializes in the sale of metering devices.
The next step is to obtain a resolution from the energy supply company to replace (install) the electricity meter. Only after receiving this document can you call a specialist who will install the meter.
The mandatory final stage of installing a two-tariff meter is calling a specialist from the energy supply company. He must set up, adjust and seal the installed meter, and make the appropriate notes in the technical passport. In addition, the specialist can give the necessary instructions regarding the operation of the meter, the timing of verification and taking readings from the meter.
What documents are required to install a two-tariff meter?
To switch to a two-tariff metering system, you must provide the following package of documents to the energy supply company:
- Passport.
- Previously concluded agreement with the energy company; After the transition to two-tariff electricity metering, the contract is renewed.
- Documents confirming ownership of the premises where the meter will be installed.
- Application (form and sample application, as a rule, are provided by a specialist from the energy company).
Which metering device is better to choose for a residential premises?
What should you pay attention to when purchasing an electronic two-tariff meter?
Before purchasing, you need to make sure that the meter you are purchasing is approved for use in the Russian Federation (that is, this model is included in the state register) and, which is also important, complies with GOST.
It is imperative to check the completeness of the technical passport, the presence of the factory serial number in the passport, the date of manufacture, the calibration interval and warranty periods, the presence and integrity of all mandatory factory seals.
Another important indicator is the accuracy class. For private houses or a separate apartment, the accuracy of a class 2 device is quite acceptable; for a multi-storey building, class 1 is established by law.
Another question that people who purchase two-tariff electricity meters often ask: “Which is better - imported or Russian-made?” Until recently, preference was often given to metering devices manufactured in European countries. But today there are many Russian manufacturing plants that produce two-tariff electricity meters, reviews of which perfectly characterize their products. These include, for example, the Moscow Plant of Electrical Measuring Instruments, which supplies meters of the SOE-55 line, the Stavropol company Energomer, which produces metering devices with the same name, or NPK Incotex, a manufacturer of the popular brand of metering devices "Mercury". And this is not a complete list of Russian manufacturers that have proven themselves in this area.
It is best to decide on the choice of model with the help of a specialist from the energy supply company - he can tell you which models of metering devices are recommended for installation.
Single-phase or three-phase - what's the difference?
Another question that may arise during the installation of a two-tariff meter: purchase a single-phase or three-phase meter. The difference is that they are intended for installation in a room where the power supply is 220 V. These include an ordinary city apartment, a private residential or country house, a personal garage or a small retail outlet.
For electrical networks with a voltage of 380 V, a three-phase electricity meter is required. A two-tariff electronic meter that meets this requirement is suitable for large private houses and cottages, enterprises, large private or industrial garages, in short, for any room with increased electricity consumption.
The main advantage of a three-phase meter is that, unlike a single-phase one, it can fully operate both at a voltage of 380 V and in networks with a voltage of 220 V. Thus, a three-phase two-tariff electricity meter is in some way a universal option for most premises.
When to take meter readings
After the meter installation procedure has been completed completely, you need to figure out how to take readings from a two-tariff meter correctly and in a timely manner in order to avoid overpayment, penalties or incorrect charges.
Energy company specialists most often recommend taking monthly meter readings at the same period - the last days of the current month. This regularity allows you to control your electricity consumption and provide timely data to your electricity supplier.
How to correctly take monthly electricity readings
Readings from a two-tariff electricity meter are taken as follows:
- It is best to keep a separate notebook (notepad) for the readings of the consumed electricity meter.
- On the display of the metering device, the readings are indicated by the letter “T” and numbers 1-3. The time period “day” corresponds to the indicator “T1”, the night period is indicated on the display as “T2”. Both indicators are written down in the notebook.
- Important! Not all numbers on the display are recorded, but only the meter readings indicating kW. Numbers separated by a dot (framed, highlighted in a contrasting color, etc.) indicate fractions of kW - this indicator is not fixed or the first digit after the dot is rounded.
according to a two-tariff meter
Calculation of electricity using a two-tariff meter is carried out as follows:
- The previous T1 readings are subtracted from the T1 readings for the current month. The result obtained is multiplied by the price of kW at the “day” tariff.
- The previous T2 readings are subtracted from the “T2” readings for the current month. The result obtained is multiplied by the price of kW at the “night” tariff.
- If the energy supply company sends a separate receipt for each tariff, then the results are entered into the “day” and “night” receipts, respectively. If payment is made using a single receipt, the amount for the day and night rates is included in the general receipt and is summed up upon payment.
Fill out the receipt
If, for the convenience of the client, the energy supply company sends a monthly receipt with completed details and a ready-made calculation, then the only thing that needs to be supplemented with such a form is the electricity meter readings for the current month.
If the owner of the premises fills out the receipt independently, then it is not enough just to know how to calculate electricity using a two-tariff meter yourself; you need to fill out the payment receipt correctly and in detail:
- All required fields are filled in on the receipt.
- The column “Branch (name) of the bank, recipient account, personal account” indicates the details of the bank in which the energy supply company opened the account, the number of the personal and current accounts of the electricity supplier, code and microfinance organization. All this information is contained in the contract with the energy company.
- The payer enters his data in the “Last name, initials, address” column.
- The month for which payment is made is entered into the “Electricity” table. Next, fill in line by line: the current “final” readings “T1”, the previous readings “T1”, the “daily” tariff (kWh), the amount to be paid in rubles and kopecks. Similarly, in the next line, fill in the data for the night tariff “T2”: the current “final” readings of “T2”, the previous readings of “T2”, the “night” tariff (kWh), the amount to be paid in rubles and kopecks.
Please note that the article provides a standard receipt form. The form of payment receipt may vary slightly between different electricity suppliers. If questions arise when filling out, you should contact the energy supply company specialists for explanations.