Built for UK heat network regulations
Heat network operators face increasing regulatory scrutiny. From metering accuracy to data integrity, HeatFlow provides the tools and evidence you need to demonstrate compliance at every level.
Regulatory-Aligned Reporting
Pre-built reports aligned to UK heat network regulations. Demonstrate compliance with metering accuracy and data retention requirements.
Transparent Measurement
Every reading is validated meter data with a full audit trail. Show regulators exactly how consumption is measured.
Complete Audit Trails
Every reading, calculation, and action is logged with timestamps and user attribution. Full traceability from raw meter data to final report.
Evidence on Demand
When a regulator or funder queries your numbers, access the complete data chain instantly. Respond quickly with evidence-backed answers.
Data Quality Scoring
Every meter and reading is quality-scored. Identify data gaps, estimated readings, and anomalies before they become compliance risks.
Portfolio-Wide Compliance
Monitor compliance status across your entire portfolio. Dashboards show which sites are fully compliant and which need attention.
UK heat network regulatory landscape
Heat Network (Metering & Billing) Regulations 2014
Requires consumption-based metering where cost-effective. Mandates individual metering in new builds and major renovations. HeatFlow automates compliance with automated metering and transparent measurement.
Ofgem regulation - register by 26 January 2027
Ofgem became the heat networks regulator on 27 January 2026. Existing networks are deemed authorised so they can keep operating, but every operator and supplier must register with Ofgem by 26 January 2027 under authorisation condition A4, and meet the authorisation conditions on pricing, service quality and transparency. HeatFlow's audit trails and validated meter data provide the evidence registration asks for.
HNTAS - Heat Network Technical Assurance Scheme
HNTAS sets minimum technical standards for heat networks, built on CIBSE CP1 (2020), the Heat Network Technical Standard (TS1) and a new Metering and Monitoring Standard. Certification begins from scheme launch in 2027 and covers feasibility, design, construction and operation. Metering and monitoring evidence is central to it, which is exactly what HeatFlow records.
Heat Trust Consumer Protection
Voluntary scheme setting standards for customer service, measurement accuracy, and complaint handling. HeatFlow's evidence and data quality tools support Heat Trust membership requirements.
Building Safety Act & Net Zero
Energy performance and safety reporting requirements for multi-occupancy buildings. HeatFlow's analytics provide the consumption data needed for energy performance assessments.
Frequently Asked Questions
Is my building considered a heat network?
Probably, if heat comes from one central source and serves more than one home or premises. The Energy Act 2023 defines a relevant heat network as either communal or district. A communal heat network supplies heating, cooling or hot water to a single building divided into separate premises - a block of flats with one central boiler or plant room is the classic example, and it also covers buildings where separate non-domestic premises are served. A district heat network supplies two or more buildings. If either describes your site, heat network rules apply to you.
Does my building have to follow the new heat network rules?
If it is a communal or district heat network, yes. Ofgem became the regulator on 27 January 2026. Existing networks were deemed authorised so they could keep operating without interruption, but that is not an exemption - every operator and supplier must register with Ofgem by 26 January 2027 and meet the authorisation conditions covering pricing, service quality and transparency. Networks starting after that date must be authorised before they operate.
When do I need to register my heat network with Ofgem?
By 26 January 2027. Registration is made under authorisation condition A4 and applies to every in-scope operator and supplier. It is not only a technical description of the network - Ofgem uses it to assess whether you are operating compliantly and have the required consumer protection arrangements in place. Accurate metering records and a clear audit trail make that materially easier to evidence.
What is HNTAS?
HNTAS is the Heat Network Technical Assurance Scheme - the technical half of heat network regulation, sitting alongside Ofgem's consumer protection rules. It sets minimum standards drawn from CIBSE CP1 (2020), the Heat Network Technical Standard (TS1) and a new Metering and Monitoring Standard, with certification across feasibility, design, construction and operation from scheme launch in 2027. Much of what it asks for is metering and monitoring evidence.
What UK regulations apply to heat networks?
Three things now apply together. The Heat Network (Metering and Billing) Regulations 2014 require consumption-based metering where it is cost-effective and technically feasible. The Energy Act 2023 made Ofgem the regulator from 27 January 2026, with registration due by 26 January 2027 and authorisation conditions covering pricing, service quality and transparency. HNTAS adds minimum technical standards from 2027. The Heat Trust remains a voluntary consumer protection scheme. HeatFlow is built to evidence all of them.
Is consumption-based metering mandatory for heat networks?
Under current UK regulations, heat network operators must install individual heat meters and measure actual consumption where this is cost-effective and technically feasible. HeatFlow automates this process with smart metering, validated data, and auditable calculations.
How does HeatFlow help with heat network compliance?
HeatFlow provides automated metering, full audit trails, data quality monitoring, and pre-built compliance reports. Every piece of data is traceable from raw meter reading to final report, meeting regulatory requirements for transparency and accuracy.
What happens during a regulatory audit?
HeatFlow maintains complete audit trails for all readings, calculations, and compliance actions. During an audit, you can export full data chains showing how each figure was calculated, what readings were used, and whether any estimates were applied. All data is timestamped and attributable.
Does HeatFlow support the Heat Trust scheme?
HeatFlow's data quality and evidence tools align with Heat Trust requirements for transparent measurement and consumer protection. The platform generates the data and documentation needed to demonstrate Heat Trust compliance.