The process
From Energy Bills to Clean Power
We handle everything — funding, design, installation, and 15 years of maintenance. Your role is simple: share your energy data and start saving.
- 01Share Your Energy Data→
- 02Receive Your Free Proposal→
- 03We Fund and Install→
- 04Pay Only for Clean Energy→
- 05Fully Maintained for 15 Years
Share Your Energy Data
We start with your actual consumption
To build an accurate proposal, we need to understand how your site uses energy. You have two options: provide 12 months of electricity bills, or sign a letter of authorisation allowing us to obtain your half-hourly consumption data directly from your energy supplier.
Half-hourly data is our preferred route — it gives us a granular picture of your consumption patterns across every half-hour of the day, enabling us to design a system that genuinely matches your load profile rather than an estimate.
Receive Your Free Proposal
A bespoke proposal, at no cost and no obligation
Our engineering team analyses your consumption data and designs a solar PPA tailored to your site. The proposal includes system size, projected generation, estimated savings, and — where applicable — battery storage and EV charging integration.
There is no cost for the proposal and no obligation to proceed. We present the numbers clearly so you can make an informed decision. Most clients see projected savings of 20–40% on their electricity costs from day one.
We Fund and Install
Zero capital outlay — we fund the entire system
Once you agree to proceed, Apex funds and manages the full installation. Our engineering and installation teams handle everything from structural surveys and grid connection applications to equipment procurement and commissioning.
Systems range from 20kW for smaller commercial sites up to multi-MW installations for large industrial facilities. We work around your operations to minimise disruption during installation.
Pay Only for Clean Energy
A fixed rate for 15 years — not index linked
Once live, you pay only for the clean energy your system generates — at the agreed PPA rate. This rate is fixed for the full 15-year term and is not index linked, meaning it will not rise with inflation or energy market movements.
Your PPA rate is set below your current grid tariff, so you save from day one. As grid prices rise over the term, your savings compound. You are protected from energy market volatility for the entire duration.
Fully Maintained for 15 Years
We own the system — we maintain it
Because Apex owns the system throughout the PPA term, full maintenance is our responsibility. This includes routine servicing, inverter monitoring, performance guarantees, and any repairs required to keep the system operating at peak output.
You have a single point of contact for the life of the agreement. No third-party maintenance contracts, no unexpected repair bills, no performance risk. At the end of the term, options include renewal, purchase, or removal — all at your discretion.
Two Ways to Get Started
Both routes lead to the same outcome — a free, no-obligation proposal based on your real energy data.
12 Months of Electricity Bills
Simply provide your last 12 months of electricity bills. We extract the consumption data we need and build your proposal from there. Quick to provide, no authorisation required.
Letter of Authorisation
Sign a short letter authorising us to request your half-hourly consumption data directly from your energy supplier. This gives us a far more detailed picture of your load profile and results in a more accurate, optimised proposal.
PPA vs capital purchase
Why Choose a Solar PPA Over Buying?
Purchasing a solar system outright requires significant capital expenditure — typically £50,000 to £500,000 or more for a commercial installation. A Power Purchase Agreement removes that barrier entirely. You get the same clean energy and the same savings, without tying up capital or taking on asset risk.
| Factor | Apex Solar PPA | Capital Purchase |
|---|---|---|
| Upfront cost | £0 — fully funded by Apex | £50k–£500k+ capital outlay |
| Maintenance responsibility | Apex — included for 15 years | Your business — ongoing cost |
| Performance risk | Apex — performance guaranteed | Your business — if output drops, savings drop |
| Balance sheet impact | Off balance sheet — operational expenditure | On balance sheet — capital asset |
| Energy price certainty | Fixed PPA rate for 15 years | Grid import price still subject to market |
| Time to savings | From day one of generation | After payback period (typically 7–12 years) |
A solar PPA is particularly well-suited to organisations that want to reduce energy costs and carbon emissions without diverting capital from core operations — including NHS trusts, local authorities, schools, and commercial businesses with high electricity consumption.
Key advantages
What You Get With an Apex PPA
Immediate savings from day one
Your PPA rate is set below your current grid tariff. The moment your system goes live, you pay less per unit for the electricity it generates. As grid prices rise over the 15-year term, your savings compound year on year.
Fixed rate — not index linked
Unlike grid electricity, your PPA rate does not move with inflation, energy market volatility, or government levies. You lock in a known cost for clean energy for the full term, making long-range financial planning straightforward.
Full turnkey delivery
Apex manages every stage: structural survey, planning (where required), grid connection application, equipment procurement, installation, commissioning, and ongoing monitoring. You have a single point of contact throughout.
No asset risk or maintenance burden
We own the system for the duration of the agreement. Routine servicing, inverter monitoring, and any repairs are our responsibility. If output falls below the guaranteed level, we make it right — at no cost to you.
Scalable from 20kW to multi-MW
Whether you operate a single commercial unit or a portfolio of industrial sites, our systems are sized to match your load. We work with businesses consuming from 50,000 kWh per year up to tens of millions of kWh annually.
Battery storage and EV charging integration
Solar generation is most valuable when paired with storage. We can integrate battery systems to capture excess generation for use during peak tariff periods, and EV charging infrastructure to offset fleet running costs — all under a single PPA.
Is a PPA right for you?
Who Qualifies for a Solar PPA?
A solar Power Purchase Agreement works best for organisations with consistent, high electricity consumption and suitable roof or ground space. The following criteria are a useful starting point — if you are unsure, our team will assess your site at no cost.
Annual consumption above 50,000 kWh
PPAs are most cost-effective for sites consuming at least 50,000 kWh per year. Larger sites — manufacturing facilities, distribution centres, NHS trusts, schools — typically see the greatest savings.
Suitable roof or ground space
We need unshaded roof or ground area to mount the panels. South, south-east, and south-west facing roofs are ideal, though east-west split arrays are also viable. We assess suitability as part of the free proposal process.
Daytime energy consumption
Solar generation peaks during daylight hours. Sites that consume the majority of their electricity during the day — offices, schools, factories, warehouses — achieve the highest self-consumption rates and therefore the greatest savings.
Long-term site tenure
Because the PPA runs for 15 years, you need confidence that you will occupy the site for the duration. Freehold owners and long-lease tenants (with landlord consent) are both eligible. We can advise on lease structures.
Ready to See Your Numbers?
Book a free consultation and we'll walk you through the process — no obligation, no cost.