How we design every system
There are two ways to size a solar system. One starts with the roof and asks how many panels will fit. The other starts with the bill and asks what you actually need. They produce very different proposals.
We start with a year of consumption
Before anyone talks about panel counts we want twelve months of your electricity use. Not the annual total. The shape of it. A household that runs air conditioning hard from June to September and a household that uses the same total spread evenly need different systems, and the annual figure hides that completely.
This is also the number that decides whether a battery earns its place. If most of your consumption is already in daylight, a battery adds cost and saves comparatively little. If your evenings are heavy, it changes the whole calculation.
Then the roof, in person
Roof area sets the ceiling on what is possible. It does not set the size. We look at the structure, the orientation, the pitch and what actually shades it across a day: a chimney, a neighbouring building, a mast that only matters in December.
We also confirm the supply. Single-phase and three-phase change the inverter, the layout and the cost, and it is not something to assume from the outside of a building.
Why we do not fill the roof
A full roof is an easy thing to sell and often a poor thing to own. Production you cannot use yourself is exported, and exported electricity is worth a fraction of what you pay to buy it back. Past a certain point every additional panel earns less than the one before it.
So we stop where the return does. That usually means a proposal with fewer panels than the roof would take, and it is the recommendation we would want if it were our own house.
- Consumption sets the size, roof area sets the limit
- Every additional panel is judged on what it returns, not on whether it fits
- If solar does not pay on your roof, that is what we will tell you
The proposal you get
One document with the make and model of every component, the price, the expected production, the assumptions behind it and the scope of the work. No figure appears without what it rests on.
You keep it whether or not you buy from us. It is also written to be compared against other quotes. If a competing proposal is better for your roof, you should be able to see that from ours.
Start with your own numbers
The design process starts with a home visit and a year of your consumption. Both are free, and nothing is decided until you have the proposal.
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