Solar PV Contracts in the Public Sector: Schools, Councils and Housing

Most solar installers never check Contracts Finder. They quote homeowners, chase commercial roofs, and assume public sector work belongs to somebody with a bid team. Meanwhile, on the AtlasRevenue energy desk this month: Sanctuary Housing Association with £18 million awarded and three live notices open simultaneously, the Department for Education with £26.3 million awarded and a live notice, and MHCLG with £28 million. Public bodies are buying solar and energy works right now, in public, and the installers bidding are the ones who simply looked.

This guide maps the public solar market: where the money comes from, who buys, what the tenders require, and how to see them forming months early.

Where does public sector solar money come from?

Follow the funding, because tenders are downstream of it every time.

• Public Sector Decarbonisation Scheme. The big one: grant waves funding heat decarbonisation and energy efficiency across schools, hospitals, councils and leisure estates, with solar riding along. Every PSDS wave announcement is a tender forecast for the following year.
• Salix finance. Interest free and grant funded routes for public bodies, heavily used by schools. A school with Salix approval is a school about to procure.
• Social housing retrofit waves. Successive government retrofit funds push landlords toward whole house retrofits where solar joins insulation and heating. Sanctuary's three concurrent energy notices are this current in action.
• Own estate programmes. Councils with net zero targets funding solar from capital budgets, often flagged years early in climate action plans and committee papers.

The pattern for installers: funding announcement first, feasibility second, tender third. Watch the first stage and you have months of warning; the general method is in how to find contracts before they are tendered.

Who buys public solar, and at what scale?

• Schools and trusts. Rooftop arrays from £30,000 to £300,000, bought individually or trust wide, DfE condition and Salix funding behind them. School estate activity is visible in procurement data continuously; a trust running any estates tender is a trust actively managing buildings, and worth a letter.
• Housing associations and councils as landlords. Portfolio solar across housing stock, tens to thousands of roofs, bought through frameworks and retrofit programmes, PAS 2030 environment. Sanctuary's live cycle is the worked example.
• Council civic estates. Depots, leisure centres, offices, car parks. Mid six figure schemes, often bundled with LED and heating works.
• NHS estates. Large schemes inside decarbonisation plans, usually via frameworks, hard for a first entry but real at scale.

Values on the energy desk skew smaller than construction, the twelve month median sits around £66,000, which is precisely the point: this is SME sized money, awarded frequently, with less bidding competition than domestic solar has quote competition.

What do public solar tenders require?

The gates are standard and assemblable within a quarter:

• MCS certification for solar installation, the assumed baseline, plus manufacturer accreditations where specified
• PAS 2030 and TrustMark for retrofit programme work in occupied housing
• NICEIC or equivalent electrical registration
• Safety accreditation, CHAS or SSIP equivalent, and £5 million public liability
• DBS checks for schools and occupied housing, with a written policy
• Evidence: named case studies with kWp, generation figures, and references

Evaluation weights quality heavily. The scoring themes: delivery in occupied buildings, especially schools where terms and safeguarding shape everything; DNO application competence, because a bidder who mentions G99 timelines early reads as someone who has done it; O&M and monitoring offers, since buyers fear orphaned arrays; and social value, where local apprentices and community benefit score the mandatory 10 percent, covered in social value for SMEs.

How to see solar tenders forming early

Three feeds, in order of lead time.

• Strategy layer, one to three years out. Council climate action plans, MAT estates strategies, and retrofit funding bids name solar ambitions with budgets attached. Committee papers are public and searchable.
• Funding layer, three to twelve months out. PSDS and Salix award lists are published. Every named recipient is a buyer with money and a deadline, which is the strongest intent combination there is; we score it +25 in our buyer intent model.
• Procurement layer, live. Notices on Contracts Finder and Find a Tender, and the energy desk tracking buyers, values and expiries continuously. Contract end dates matter here too: solar O&M contracts, energy performance arrangements, and framework refreshes all expire on published dates.

The buyer worth studying this month is Sanctuary: three simultaneous energy notices from one landlord is a programme, not a purchase. An installer who sends a one page capability statement while that cycle is open, per the six month window playbook, is introducing themselves to a buyer with years of pipeline.

Frequently asked questions

Do I need MCS certification for public sector solar contracts?

For installation work, treat it as mandatory; buyers specify it as the baseline and funding rules frequently require it. Portfolio retrofit work in occupied housing adds PAS 2030 and TrustMark expectations. Without them, enter as a subcontractor to a certified principal while you certify.

How big are public sector solar contracts?

From £30,000 single school arrays to multi million portfolio programmes. The energy desk's twelve month median award of roughly £66,000 says the routine market is SME sized; the framework and portfolio layer scales from there.

What is the Public Sector Decarbonisation Scheme?

A government grant scheme funding decarbonisation of public buildings, delivered in waves. Its award announcements name organisations and funding levels, making each wave a public forecast of coming tenders. Salix administers the related school and public body finance routes.

Can small installers win against national energy companies?

Yes, especially at school and single site scale where responsiveness, local presence and social value commitments score naturally. Nationals dominate mega frameworks; they routinely decline the £60,000 school array that suits a regional installer perfectly.

Where can I see live public solar tenders?

Contracts Finder and Find a Tender carry the notices. The AtlasRevenue energy desk aggregates live notices, active buyers like Sanctuary, DfE and MHCLG, awarded values and contract expiries in one view, updated continuously.

Sources and references

• AtlasRevenue energy desk, buyer activity, award values and medians cited, July 2026
• Public Sector Decarbonisation Scheme, scheme documents and award announcements
• Salix Finance, public body and schools funding routes
• MCS and TrustMark, certification schemes buyers require
• Contracts Finder, live notices
• Buyer Intent Signals in Public Procurement, the scoring model behind the funding signal
• UK Government Contracts: The Complete Supplier Guide 2026, our hub guide

Public bodies are buying solar this month and next year's buyers are already named in funding lists. Run a free scan and AtlasRevenue will map the schools, landlords and councils showing energy intent in your region.