Resource
21 Aug 2026
For a multi-site organisation, securing an energy contract is not simply a matter of comparing today’s unit rates. Planned compliance and efficiency work can change how much electricity and gas each property will need during the next contract period. If those changes are not reflected in the tender, apparently competitive commercial utilities prices may be based on an outdated demand profile.
ESOS measures, TM44 recommendations and improvements linked to EPCs or MEES can reduce consumption at some properties. At the same time, decarbonisation, a change of heating system, new equipment or the expansion of a site may increase electricity demand elsewhere. Estates, facilities and procurement teams therefore need a shared view of what will change, where it will happen and when it will affect consumption.
To make a multi-site comparison of commercial utilities prices more reliable:
The aim is to build a procurement position that reflects the estate you expect to operate, rather than relying only on its historic consumption.
Compliance activity can provide a practical view of where energy is used and where performance could improve. Our ESOS service reviews energy consumption across buildings, transport and industrial processes. Its TM44 Air Conditioning Inspection service assesses system performance, identifies issues and provides practical recommendations. Energy Performance Certificates rate the energy performance potential of a building and recommend improvements, while our MEES support can help organisations progress from assessment to delivery.
These projects may point to changes such as revised controls, more efficient cooling, building fabric improvements or replacement equipment. Some measures could lower electricity or gas use. Others, particularly electrification projects, may shift consumption from gas to electricity rather than reduce total demand evenly.
That distinction matters when reviewing business electricity and gas prices. A lower gas forecast combined with a higher electricity forecast may require a different purchasing approach from one based on last year’s invoices alone.
A multi-site estate may have several compliance deadlines, improvement programmes and utility contracts moving on different timelines. Start by bringing them into one planning view.
For each site, record:
This makes it easier to see whether a project will affect the next contract, a later renewal or only part of a contract period. It also helps procurement teams decide which assumptions should be included when requesting commercial utilities prices.
Where the timing of a project remains uncertain, use a decision date and assign an owner, rather than treating the improvement as guaranteed. This prevents an unapproved project from distorting forecast volumes while keeping it visible in the procurement plan.
Portfolio totals can hide important differences between buildings. A site reducing gas use through a heating upgrade should not automatically offset an unrelated site expecting higher electricity demand. Suppliers still need a credible view of the consumption attached to each meter and contract.
Use recent, representative consumption for each site and investigate unusual periods. Vacancies, temporary closures, new opening hours, building works and estimated readings can all make historic usage less representative of future demand.
Create a central forecast for approved projects, then test a reasonable higher and lower demand scenario for measures that are not yet confirmed. Record the assumptions behind each adjustment, including the anticipated completion date and whether the effect applies for a full contract year.
This approach gives decision-makers more context when assessing business electricity and gas prices. It also reduces the risk of comparing one quote against historic demand and another against a future forecast.
Organisations looking for the best business rates for gas and electricity need more than a headline unit rate. Quotes should be evaluated using consistent volumes, contract dates, site lists and inclusions. Otherwise, a lower-looking price may simply reflect a different set of assumptions.
Before going to market, agree a comparison schedule covering:
When teams compare utilities business contracts on this basis, the decision can consider both price and fit. Our Energy Procurement service uses market insight and expertise to help organisations select a supplier, contract length and contract type that support their energy needs and budget.
Using the same demand assumptions across every option also makes commercial utilities prices easier to explain internally. Finance, estates and procurement stakeholders can see whether an apparent difference comes from the market, the contract structure or the underlying forecast.
Bringing sites into a coordinated procurement exercise can reduce administrative complexity and create a clearer portfolio view. However, consolidation should not mean treating every property as identical.
A continuously operated facility, an office with standard working hours and a seasonally used building may have very different load profiles and budget priorities. Some sites may suit greater price certainty, while others may require a different contract structure or start date.
Group sites according to compatible renewal dates, operating patterns, metering arrangements and risk requirements. Retain a site-level record within the wider portfolio so that local changes are not lost when commercial utilities prices are compared.
This is particularly important when compliance projects affect only part of the estate. A TM44 recommendation at one property or an EPC improvement at another should change the relevant site forecast, not be applied indiscriminately across the group.
Different contract end dates can leave multi-site organisations repeating procurement exercises throughout the year. Where commercially appropriate, alignment can create a more manageable future renewal cycle and make it easier to assess business electricity and gas prices across the estate at the same time.
Our case study for Holy Cross Catholic MAC shows this approach in practice. Across its eight sites, we helped align contract end dates, compare options on a like-for-like basis and support budgetary planning and approval. The organisation also gained greater choice over suppliers, contract type and contract length.
Alignment still needs careful evaluation. A shorter bridging arrangement or a deliberately different end date may be needed to bring compatible sites together. Any additional cost or exposure should be weighed against the longer-term administrative and procurement benefit.
A practical sequence is to:
We bring together expertise across ESOS, TM44, EPCs, MEES and Energy Procurement. This gives organisations relevant routes to address compliance requirements, plan building improvements and assess commercial utilities prices through a more informed procurement process.
Speak to Zenergi about aligning your compliance projects, site forecasts and procurement timetable to assess commercial utilities prices with confidence.
Talk to our energy expertsCompliance projects such as ESOS, TM44, EPC and MEES improvements can reshape future energy demand across a multi-site estate.
Coordinating these plans with site forecasts and contract renewal dates helps organisations compare commercial utilities prices consistently and choose a suitable procurement strategy.
