Guides
Plain English, sourced to Ofgem and GOV.UK, dated, and marked where we haven't verified something. How we check.
Ofgem heat network quarterly reporting: what small networks must submit
The quarterly and annual data points, who reports what, and the windows.
Answers: What data do heat networks report to Ofgem, and when?
Heat in the service charge? You are probably a heat supplier
What "bundled charges" mean for reporting and how to work out the heat element.
Answers: Am I a heat supplier if heating is in the service charge?
Communal heating and Ofgem registration: a managing agent's checklist
Registration by 26 January 2027, roles, the Energy Ombudsman, and what to start recording now.
Answers: How do I register a heat network with Ofgem?
Every Ofgem heat network data point, Tables 3 to 8
The full list from the March 2026 guidance with plain-English explanations.
Answers: What does each Ofgem heat network data point mean?
Do I need a Priority Services Register for a heat network?
Yes if you supply domestic customers: what Ofgem's condition B8 requires, who counts, and what you report.
Answers: Do I need a Priority Services Register for a heat network?
Does the Energy Ombudsman cover heat networks, and when does the Housing Ombudsman apply?
Which ombudsman, the 8-week and 12-week clocks, and what your complaints procedure must contain.
Answers: Does the Energy Ombudsman cover heat networks, and when does the Housing Ombudsman apply?
Do Ofgem's heat network rules apply in Scotland?
Yes — the same registration deadline and returns. What the Heat Networks (Scotland) Act adds, and what it doesn't yet.
Answers: Do Ofgem's heat network rules apply in Scotland?
What is HNTAS? The heat network technical standards scheme, explained
Mandatory technical standards with certification from 2027: the proposed milestones and the under-11-properties threshold.
Answers: What is HNTAS?
Heat charges going up this winter? What Ofgem expects you to record
Gas costs rise from October 2026. The six records behind a price change: the new price, the method, costs passed on, complaints, arrears, vulnerable residents.
Answers: What must I record when communal heating charges go up?
Also useful: every reporting deadline and a worked example of one quarter's return.
Three minutes; you get the data points that apply to your network and a collection template.