Heat network material asset register: what to record

What it's for

Ofgem says the register should make sure the material assets used or needed to carry on the regulated activities are identified, and are readily identifiable by a successor or an insolvency practitioner.

How it's compiled

As a minimum, the register should include a summary of how it was compiled, and your approach to auditing, reviewing and updating it.

Equipment

For each tangible asset, record:

• The asset's name or model.
• Its location or position.
• Its type or category.
• A description of its attributes, capability or use.
• Its condition, including repairs and updates.

For a typical block that means the boilers or heat pumps, pumps, plate heat exchangers, thermal stores, controls, heat interface units, heat meters and the main pipework and risers.

Contracts

For each non-tangible asset, such as a contract, record:

• The agreed provisions.
• The service it relates to.
• The counterparty, with notification details.
• The contract term, including any extension rights.
• Where the document is kept, or its reference.

Typical contracts include maintenance, fuel or energy supply, metering and billing, and any energy services agreement.

Keeping it current

Ofgem says you must maintain the register and keep all its information up to date. Update it after major capital work, and after any repair or replacement that would significantly change the information.

Questions

Do we need to list every radiator valve?

The focus is on the material assets needed to carry on the regulated activities. Record the main plant, distribution and metering equipment and the key contracts.

Who should fill it in?

Your heating maintenance contractor can usually supply most of the equipment details. Your managing agent can help with the contracts.

Sources

• Ofgem: Heat networks regulation financial resilience guidance (January 2026)

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