New rules for commercial metering of thermal energy

2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16

In 2013, the Rules for the commercial accounting of heat energy were approved (1304 Government Decree of November 18). From the moment the normative act was put into effect, the federal executive structures were obliged to bring their legal documents in line with it within three months. The Ministry of Housing and Public Utilities and Construction was supposed to establish a methodology for conducting commercial accounting within two weeks. 3 years after the adoption of the above normative act, some additions were made to it. Consider further the new Rules for the commercial accounting of thermal energy in 2016

General provisions

New rules for commercial metering of thermal energy, coolant define:

1. Instrument requirements.
2. Characteristics to be measured. The metrics are used to provide quality control of the service.
3. Procedure for determining the scope of supplies.
4. Features of the distributionlosses of heat energy, coolant in the absence of metering devices at the boundaries of adjacent heating networks.

Goals

New rules for the commercial accounting of heat energy aim to ensure:

1. Settlements between service companies and consumers.
2. Monitoring the operating modes of supply systems and consuming installations.
3. Supervise the rational use of raw materials.
4. Documentation of equipment indicators (pressure, volume, mass, temperature).

Features of the technique

The 2016 Heat Custody Rules prescribe the use of special appliances. They are installed at points located on the boundaries of the balance sheet. Another section may be provided for by a contract for the supply, supply or transfer of heat energy (heat carrier). Service companies cannot require consumers to install other devices or additional devices that are not provided for by the regulatory act.

Rules for organizing commercial metering of heat energy

To achieve the goals mentioned above, the following are carried out:

1. Obtaining specifications.
2. Design and installation of accounting devices.
3. Commissioning the unit.
4. Using appliances. The operation includes, among other things, the regular taking of readings from devices.
5. Checking, repair, replacement of devices.

Explanations

The rules for commercial metering of thermal energy prescribe to equip units in places as close as possible to the boundaries of the balance sheet. At the same time, the real possibilities at the facility should be taken into account. The provision of technical conditions for the installation of devices, their commissioning, sealing, as well as participation in the commission for the acceptance of nodes are carried out without charging consumers a fee. At sources, devices are installed at each outlet of the network.

Device readings

The rules for the commercial accounting of thermal energy fix the procedure for collecting information from devices. In this case, a list of mandatory indications is established. These include:

1. The amount of transported, received, supplied heat energy as part of hot water.
2. Number and duration of device malfunctions.
3. Other data provided by technical documents and displayed by devices.

Rules for the commercial accounting of thermal energy prescribe the collection of the specified information by consumers or service companies, unless otherwise established by an agreement between them.

Timing

The rules for commercial metering of heat energy oblige consumers or service companies to provide water disposal / water supply enterprises with readings taken on the 1st day of the instrument no later than the 2nd day of the month following the billing month. Other times maybe established by law. Information about current readings is provided within two days (working) from the date of acceptance of the relevant request. Information is sent by any available method, including by e-mail, allowing you to confirm its receipt.

Reconciliation report

It is issued during the audit when discrepancies are identified between the actual readings and the data provided by the consumer or the service company. The reconciliation report must be signed by a representative of the supply company or the end user. In case of their disagreement with the content of the document, it is marked "Familiarized" and certified by signature. The objections of the grid company or consumer may be indicated in the act or sent in a separate letter to the supply organization. In case of refusal to sign the document, it must contain a corresponding mark. The act of reconciliation acts as a basis for the recalculation of the volume of supplies of coolant, heat energy from the date of signing.

Parallel devices

They can be used by the network company or the consumer to control the amount of heat supplied. In this case, the other party must be notified about the installation of such devices. Devices are located in areas that allow commercial accounting. When detecting differences in the readings of parallel and main instruments, more than the permissible measurement error for a period equal to at leastone billing month, the persons who installed the control equipment may demand an extraordinary verification from the second party.

Settlement order

Commercial accounting in this way is allowed at:

1. Absence of main instruments at checkpoints.
2. Violation of the contractual deadlines for submitting information from devices owned by consumers.
3. Faults in the main unit.

The settlement method is also used in the case of non-contractual supply of heat energy, coolant.

Determination of consumption volume

The amount of heat energy, coolant supplied by the source is expressed as the sum of indicators for each pipeline (feed, return and supply). The volume is determined by the supplying company in accordance with the instrument readings for the billing period. In some cases, it is necessary to measure the temperature of the cold water at the source in order to establish the amount of supply. In such situations, it is allowed to enter the corresponding indicator into the calculator as a constant. In this case, the volume of consumption must be periodically recalculated, taking into account the actual temperature. The introduction of a zero indicator t during the year is allowed.

Actual temperature

For the heat carrier, it is determined by a single supply company in accordance with the data on average monthly values at the heat source. Relevant information is provided by themowners. Within the supply boundaries, the actual monthly average t is the same for all users. The frequency of recalculation is established by the contract. For hot water, the actual temperature is determined by the company operating the central heating section. For this, cold water indicators are measured directly in front of the heaters. The frequency of recalculation is also established by the contract.

Methodology

It allows you to exercise:

1. Organization of commercial accounting in networks, at the source and coolant.
2. Determining the volume of consumption. It includes the amount of heat energy, coolant, released, received, and also consumed during the period when there was no accounting for instruments.
3. Determination of volume for non-contractual consumption.
4. Distribution of heat losses.

When operating devices for an incomplete period, an adjustment of the flow rate is necessary. In the absence of control devices at the accounting points or when they operate for more than 15 days. determination of the amount of heat energy used for heating and ventilation is carried out by calculation, based on the recalculation of the base indicator of the change in t of the outside air.