The Smart Metering Policy Framework Post-2025, finalised by the Department for Energy Security and Net Zero in late 2025 with supplier obligations published in 2026, introduces a hard rule for UK businesses: from 1 January 2027, energy suppliers cannot enter into or renew fixed-term non-domestic energy contracts unless the customer has, or agrees to have, a smart or advanced meter installed. Businesses with traditional meters who simply ignore the deadline will be pushed onto out-of-contract deemed-contract rates at renewal, which historically run 30-60% above competitive fixed prices. The lead time to plan is now, not December 2026.
What the rule actually says, and what counts as a "smart or advanced meter"
The supplier obligations published on GOV.UK confirm that, from 1 January 2027, the prohibition on entering new fixed-term non-domestic supply contracts applies wherever the customer does not already have, or agree in writing to have, a smart or advanced meter. The obligation is on the supplier, not the customer — but a supplier who would otherwise lose the renewal will not breach licence by refusing to fix-renew a non-smart site. The customer simply ends up on rollover or deemed terms, which sit outside the obligation. We cover the rollover mechanics, including the 30-day exit window in standard non-domestic contracts, in our rollover-contract guide.
"Smart meter" for non-domestic purposes generally means a SMETS1 or SMETS2 device with the relevant communications module operating. "Advanced meter" is a separate, older category that pre-dates SMETS — typically used on larger non-domestic sites — and continues to qualify under the post-2025 framework. Half-hourly sites already meet the test by definition because their settlement-grade metering provides the half-hourly data the smart standard demands. Profile Class 1 and 2 customers (most small businesses), Profile Class 3 and 4 (typical SMEs), and Profile Class 5-8 (small commercial) are the populations actually exposed by the deadline. Anyone unsure of their profile class should check our profile class glossary entry.
The consumer-protection code that comes with the deadline
From the same date, suppliers entering smart-contingent contracts must follow a legally binding consumer protection code of practice. The code, set out in the supplier obligations document, requires "fair, proportionate and transparent" implementation, including specific provisions on appointment fulfilment. The point of the code is that suppliers should not be allowed to use the smart-meter pre-condition as a loophole to refuse renewals or quote inflated rates while installation queues form. Independent of the new code, suppliers will continue to be bound by the Standards of Conduct under SLC 0 for non-domestic customers and microbusinesses.
Importantly, the code applies to the smart-contingent renewal itself — the act of fix-renewing — not to the meter installation in isolation. So a supplier who promises to install but then takes nine months to do so is in scope of the code, even if the broader microbusiness GSoPs (separately introduced 23 February 2026) do not apply because the customer is above the microbusiness threshold. This closes a gap that has frustrated mid-sized businesses for years.
What rising demand for installations will do to the market
The pv-magazine analysis published in March 2026, summarising DESNZ's installation data, noted that the non-domestic rollout is significantly behind the trajectory needed to meet the 2027 obligation. Anyone who has watched the domestic rollout — which started in 2014 and was originally meant to finish in 2020 — knows what happens when supplier installation pipelines hit a regulatory deadline: appointment lead times stretch, and the businesses who book early get done. The businesses who wait until autumn 2026 will compete for installation slots with everyone else trying to renew on a fixed contract.
For multi-site portfolios this is particularly important. A supplier asked to fix-renew 40 sites in November 2026 cannot install 40 meters in a fortnight. Some sites will roll. Some will end up on deemed contracts. Some will fix-renew with an installation commitment date well into Q2 2027. Businesses that engage with this in the next two quarters will have leverage. Those that do not will be price-takers. Procurement teams should sequence renewals against installation lead times and use a tool like our back-billing calculator to scope the historical data that will inform any like-for-like renewal quote.
What to do if this affects you
- Within 30 days: list every site you operate with the contract end date, profile class, and current meter type (smart, advanced, or traditional). Anything traditional is exposed.
- By end of Q2 2026: ask your supplier or consultant for a meter exchange schedule for every traditional-meter site, in writing. Smart and advanced meter installations are free to the customer in nearly all cases.
- By end of Q3 2026: confirm installation appointment dates for any site whose fixed contract ends between January and June 2027. Lead times are likely to lengthen sharply through autumn.
- For any site rolled into deemed terms in 2026: read the deemed-contract terms carefully — they typically include a 30-day exit clause without termination fees, which we cover in our rollover contracts guide. Use it.
- Before signing any 2027 renewal: get the renewal quote and the installation commitment in the same document. Quotes that say "rate subject to meter installation" without a binding install date are not yet quotes.
Frequently asked questions
Q: My traditional meter still works. Why do I need to change it?
A: The change is not driven by meter failure — it is driven by the policy framework needing settlement-grade data across the non-domestic estate to support market reforms (including market-wide half-hourly settlement and broader REMA outcomes). The supplier cannot legally fix-renew you on a traditional meter from 2027.
Q: Will the meter installation cost me?
A: For the vast majority of microbusinesses and SMEs, no. The cost is recovered through industry charges, not direct billing. For very large or unusual sites, ask the supplier for a written confirmation of any costs before agreeing.
Q: Does this apply to half-hourly meters?
A: Half-hourly meters already meet the data standard, so the obligation is not triggered for those sites. The relevant transition for HH sites is the migration to MHHS settlement, covered in our smart meter and MHHS update.
Q: What if my supplier refuses to install before my renewal date?
A: Raise it as a formal complaint citing the consumer protection code obligations. If unresolved within eight weeks, escalate to the Energy Ombudsman.
Sources: GOV.UK, "Non-domestic smart meter rollout: energy supplier obligations", 2026; DESNZ Smart Metering Policy Framework Post-2025 government response; pv-magazine, "Stricter rules for energy retailers as UK smart meter deployment slows", 23 March 2026; DESNZ Non-Domestic Smart Meter Rollout Post-2025 consultation, October 2025.