Guide / Test future demand and risk
Buy for changing demand without overlooking the school’s commitments
Pupil numbers, boarding occupancy and site plans can change before an energy agreement ends. Turn those uncertainties into explicit scenarios, contract questions and accountable decisions.
Buying and climate-planning guidance revised 5 November 2026. Added sources were checked on that date; earlier evidence retains its stated date.
Use sector evidence as a prompt, then investigate your school
The ISC Census 2026 records falling pupil and boarding numbers among its member schools. It is evidence of a changing sector, not a forecast for every independent school or proof of a single cause. A growing day school and a boarding campus consolidating houses can have very different energy requirements.
Our recommendation is to connect admissions and finance planning with the estates brief before seeking offers. Record the school’s current pupil and boarding assumptions, expected activities, buildings in use and decisions that are sufficiently developed to affect the requirement. Separate approved changes from possibilities being explored.
Do not turn a roll change into the same kWh change
Energy does not necessarily move in proportion to pupil numbers. A building may still need heating, ventilation, lighting, safety systems and plant operation when occupancy falls. A pool, kitchen or boarding house can have a distinct operating schedule. Weather, opening hours and activities can change the picture further.
Use meter and, where available, sub-meter evidence with the premises team. Identify persistent demand, activity-related use and unexplained consumption. Ask how much demand could realistically change, when a change would begin and what operating conditions must be preserved. Do not promise a consumption reduction simply because fewer pupils are forecast.
The aim is a defensible range, not artificial precision. If the school has no reliable split between teaching and boarding demand, record the gap and commission proportionate work. Give all providers the same versioned forecast and explain any subsequent revision.
Work through a clearly fictional volume test
The programme’s Example Boarding and Day School uses 600,000 kWh as its invented annual baseline. Its lower-demand scenario is 450,000 kWh: a 25% energy-use reduction chosen for teaching purposes, not a prediction based on a change in boarders.
The two fictional offers have different volume provisions. A permits a 20% aggregate reduction before review, without a guaranteed site exit. B permits a 10% reduction before a possible adjustment. The lower-demand scenario therefore raises a contractual question under both invented clauses. A lower calculated energy cost does not resolve the supplier’s contractual treatment.
Neither specimen provides a formula for a resulting adjustment. Do not invent a penalty, presume a waiver or present the illustrative rate multiplied by lower demand as the final payable amount. Obtain the actual clause, the supplier’s explanation and the proposed treatment in writing. Keep that response beside the scenario.
Apply the same discipline to a climate-plan measure using the school’s supported forecast. Ask which baseline the real clause uses, whether tolerance is measured by meter or across the portfolio, the period tested, and whether the proposed timing or change of use needs consent. A reduction within the annual portfolio range may still raise a question for a particular supply or contract period. Retain the supplier’s written treatment for both the project and delayed-project cases before relying on their costs.
Ask what changes when the estate or legal buyer changes
Consider known additions, disposals, mothballed buildings, boarding changes, new lettings and different uses. Ask about each relevant meter rather than assuming an aggregate volume allowance permits every individual change.
Ofgem’s change-of-tenancy guidance explains the importance of notifying the current supplier and providing evidence when occupancy changes. A sale or group restructuring is also a reason for the school’s legal adviser to establish who remains liable and whether consent or a new agreement is needed. A familiar school name or brand does not answer who the contracting party is.
Keep future site changes in a controlled register. For each, record the decision status, anticipated date, affected customer and supply points, contract implications and person responsible. Where a plan is commercially sensitive, agree a suitable disclosure process; do not give bidders misleading forecasts to avoid discussing it.
Treat security and cash capacity as part of the offer
A supplier may assess the legal customer’s credit position and propose a deposit, advance payment or other security. Ofgem’s voluntary best-practice guide encourages transparency about the assessment, calculation, alternatives and repayment. It does not guarantee that a particular supplier will offer a contract or waive security.
Ask for the amount, due date, reason, review triggers and written release terms. Check whether a guarantee creates obligations for another group company or person, and obtain the necessary authority and advice. A lower rate with an unacceptable guarantee is not made affordable by its headline price.
Put refundable deposits in the cash forecast separately from expense. Stress-test what happens if VAT recovery is later than planned, an invoice is disputed or security is increased under the terms. Identify an escalation route before a payment problem turns into a renewal or transfer problem.
Make the uncertainty visible in the decision paper
Use a short table that governors or the proprietor can examine. Show the central case, the adverse case, the clause or cash consequence and the action that would resolve or manage it. Distinguish facts, planning assumptions and supplier commitments.
Return material supply consequences to the project appraisal. Separate avoided consumption charges from standing, capacity, adviser and other charges that continue, then record any supported volume adjustment or transition cost. Keep unpriced consequences open. For the bursar, the gross payment, evidenced VAT recovery and net-cost effects may occur at different times; the capital project’s cash demand also needs its own place in the school’s forecast. This can change the project case or the preferred supply term, so the two decisions must use compatible assumptions.
| Question | Evidence or response to retain |
|---|---|
| What could change? | Dated school plans and a supported demand range. |
| What does the contract permit? | Exact clause references, limits and written supplier answers. |
| Can we fund the commitment? | Cash forecast, security terms and authorised risk assessment. |
| Who will act if circumstances change? | Named school owner, adviser task and decision or escalation trigger. |
Review the plan after supply starts
Set an agreed review date and return to the assumptions during the term. Compare actual consumption and occupancy with the baseline; explain variances before changing the forecast. Check whether the service bought includes this work and what the school must provide.
The school’s outcome is a choice made with its uncertainties understood, not a promise that the future will match the forecast. Carry unresolved conditions into the board decision and mobilisation plan, with owners and deadlines. If a material change occurs before acceptance, reconsider the recommendation rather than relying on a comparison that no longer describes the school.