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Insite Energy’s view on the latest Heat Network (Metering and Billing) (Amendment) Regulations 2020

17th November 2020

Following an industry-wide consultation process earlier this year, on 6th November 2020 BEIS released its latest amendments to the Heat Network (Metering and Billing) Regulations. We share the government’s view that the updated regulations, which will come into force on 27th November 2020, will lead to fairer billing, incentivise reduced energy consumption and facilitate improvements in heat network efficiencies. Heat suppliers will be required to install metering devices where it is cost-effective and technically feasible to do so, as well as to bill individual consumers based on their actual energy consumption. The benefits of installing such devices are expected to achieve financial and environmental benefits for both customers, heat suppliers and society as a whole, not least because the additional level of consumption data from individual heat meters will help heat suppliers to identify and rectify network inefficiency.

So, what does this actually mean for heat suppliers across the UK operating the estimated 14,000 heat networks?

What do the amendments call for?

The amendments call for the installation of heat metering devices (heat meters or heat cost allocators (HCAs) with hot water meters) by September 2022 in all existing (and mid-construction) buildings connected to a district heat network or communal heating system. This is to reduce the number of unmetered properties and to ensure individual residents are accurately billed for their own consumption. Installation, and compliance with all other requirements, must be completed by September 2022.

It is estimated that 84,000 properties require the installation of heat meters or HCAs under the regulations. Furthermore, an estimated 13,000 properties on heat networks are currently metered but not billed based on individuals’ actual heat use, in contravention of the regulations. The amendments of the regulation may therefore lead to a total of up to 97,000 properties requiring retrofitting in this way.

Does this affect my building portfolio?

Heat suppliers must determine whether their buildings connected to heat networks are affected by the regulations, and if so to what extent. BEIS has introduced a building class definitions schedule (table below), split into three categories – viable, open and exempt – to help determine the action required.

Class Customer Metering Devices Includes
Viable Mandatory -    A newly constructed building with communal heating or supplied by a district heat network*

-    An existing building supplied by a district heat network undergoing major renovation

Open Must be installed unless not cost effective or technically feasible

-    A newly constructed building with communal heating connected during the transitional period* 

-    A new building with communal heating connected after the transitional period where 

a)    there is >1 pipe entry point into dwellings or 

b)    the whole/part of the building is supported social housing, alms-house** accommodation, or purpose-built student accommodation

-    All other existing buildings that don’t fall into Viable or Exempt e.g. buildings with metering devices already partially installed

Exempt Not required

-    An existing building where the building (or part of the building)

a)    is supported housing, alms-house accommodation, or purpose-built student accommodation

b)    Is >10% covered by an existing lease*

-    A building not consisting mainly of private dwellings where heat and cooling is supplied by other means than hot water and water respectively

*with exception. See the full Regulations and Impact Assessment for full details

**Alms-house accommodation defined as any low-cost rental accommodation provided by and belonging to a charity.

My sites are affected, what must I do? 

Once you have classified buildings in your estate, you must proceed as follows:

Viable category: You must proceed with the installation of metering devices.

Open category: You must carry out further assessment, utilising the cost-effectiveness assessment model provided by BEIS to determine whether it is both cost effective and technically feasible to install metering devices. It will be deemed cost effective to install if projected energy savings (to all final customers in the building) over 10 years following installation are greater than the estimated cost of installing metering devices in a building, and ongoing metering and billing costs do not exceed a cost of £92/annum per property. Where deemed cost effective, the heat supplier must install the necessary metering.

Exempt category: If the building ‘fails’ the above cost-effectiveness and technical feasibility calculation the building will be classed as exempt. Exempt buildings will also include those specified in the above table that do not require further assessment. For all exempt buildings, the heat supplier may employ alternative methods to determine the charges of heat and hot water supply. Where this happens the heat supplier must repeat the process of assessing feasibility within four years.

When must the work be done by?

BEIS suggests that by November 2021 heat suppliers must complete the initial assessments to determine building classification, and the type of metering devices that must be installed throughout their building portfolios. Then, within the remaining nine months leading up to September 2022, properties must have the metering devices installed along with remote meter reading systems, to facilitate individual billing to residents.

Our view

At Insite Energy, we are encouraged to see that BEIS has listened to the responses and concerns submitted by stakeholders across the heat network industry. Changes we are particularly pleased to see are: the extended implementation timeframe, from a proposed six months to 21 months; the inclusion of specific building-types within the building classes; and the revision to estimated costings, making them more reflective of the real-life examples we provided (such as the cost of metering and billing increasing from £70 to £92, and the cost of meter installation, increasing from £372 to £559). Finally, we welcome the acceptance that a smaller proportion of properties are expected to ‘pass’ the cost-effectiveness assessment test (from 65% to 14%). This is a more achievable target in the first instance given other market and economic conditions of late.

Overall, we commend the amendments that BEIS has made to the regulations. It is a very positive step for the industry, ensuring higher levels of fairness and customer service to all customers. We expect more regulation to follow; this is just one more step in metering and billing a greater proportion of heat network consumers according to their actual use.

How Insite can help

At Insite we’re revving ourselves up to deliver a full end-to-end solution to ensure heat suppliers can achieve compliance with these new regulations. We are ready to help existing and new clients with these changes.

Services available immediately include support in executing building class categorisations and desktop feasibility assessments, with further on-site technical and cost-effectiveness assessments where required; the installation of metering devices; metering and billing services following installation; and ongoing maintenance services for these devices thereafter.

Existing Insite clients will benefit from our free of charge service to complete building class categorisation across their portfolios, and also a free desktop technical and cost-effective feasibility assessment where the building class requires it. To register for this free support service, please email us at

If you’re not an existing Insite client, we would still love to help. Please email us at and one of our helpful experts will be in touch.

To read more, please fine the Impact Assessment here, and notes on the Government’s consultation outcome here.

Insite Energy’s recommendations:

- Make an early start on assessing the buildings in your portfolio. While BEIS has provided a 12-month period for preparation, the sooner you know the extent to which your estate is affected by the regulations, the longer you have to plan the financial, physical and resource implications of achieving compliance.

- Make use of available (free) support resource to complete early classification assessments, such as that offered by Insite to existing clients.

- Where technical and cost assessments, and remedial installations are required, select only experienced contractors with suitable references. Specifically, check these companies have knowledge of installing heat metering and meter reading solutions. Aim to get it right first time.

- Understand your options. We can talk you through these (e.g. heat cost allocators – not a lot of people understand about these)

- Consider whether further metering and heat network upgrades might be complementary to mandated works (e.g. installation of low-cost pay-as-you-go solutions whilst in the property).

- Ensure clear and effective customer communications across all channels. Customer engagement is key should the retrofitting of meters in homes be necessary.

Further updates on the regulation changes

The Office for Product Safety and Standards (OPSS) is due to release further information, including the amended notification template, the cost-effectiveness assessment tool and user guide from 27th November on its website.

Insite Energy, Studio 4 Stuart House, St John’s Street, Peterborough, PE1 5DD

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