Battery storage in Surrey

What decides a battery job in Surrey

Where the stack can go, what the board and the supply will take, and how much the house actually uses after dark. These are the local facts behind those three questions in Surrey.

Which operator, which form

East of the Weald line — Dorking, Horley, Reigate, Cranleigh — the inverter is notified to UK Power Networks. West of it — Haslemere, Godalming — it goes to Scottish and Southern. The form is the same either way: G98 after the event for an inverter up to 16 amps per phase, a G99 application before energising for anything larger. What differs is the response time on a G99, which we plan the job around. We read the operator off your MPAN, not your postcode, because the boundary wanders.

Battery storage on the Surrey edge: which operator gets your G99 is the longer read; solar panels in Surrey covers the roofs, and what solar costs in Surrey carries the worked example a battery changes.

A lower yield makes the battery matter more

Dorking’s modelled yield is below the coast’s, and more of the Surrey edge is shaded by the Greensand and the trees. A house that makes less exports less, but it also means that whatever is made is worth keeping: a battery sized to the evening load turns a modest Surrey array into a system that covers more of the day. We size from half-hourly data or bills, and we say when the sums do not support a battery at all. The county picture is on the battery storage page; Horsham is the nearest town page south of the line, and grants and schemes in Surrey covers what the county and the districts offer.

What a battery changes on the bill

Without storage a typical home uses somewhere around half of what its panels make and exports the rest; the Smart Export Guarantee pays for those exported units, but at less than you pay to buy them back in the evening. A battery sized to the evening load keeps most of that surplus at home. The size is the whole question, which is why we read half-hourly consumption from the meter where it will give it and the bills where it will not, and why the calculator asks for your bill before it says a number.

Two things people in Surrey ask before they book

“Is Guildford covered?”

At 32 road miles it sits just beyond our thirty-mile line; Cranleigh, Dorking, Horley and Reigate are inside it. If that line moves, this page will say so.

“We are inside the Surrey Hills — does the National Landscape affect a battery?”

Not a battery indoors. The National Landscape rules are about the roof and anything visible from outside; the array is where that conversation happens, and it is on the solar page.

Questions we get asked in Surrey

Which Surrey towns do you cover for battery storage?

Cranleigh, Haslemere, Dorking and Horley, with Reigate on the thirty-mile line from our Washington base — the southern edge of the county along the Sussex border, not Woking, Epsom or the Thames towns.

Does a Surrey battery notification go to SSEN or UK Power Networks?

Both operators serve the part of Surrey we cover: UKPN for Cranleigh, Dorking, Horley and Reigate, SSEN for Haslemere and Godalming, checked on 15 October 2026. We confirm yours from the MPAN on your bill and make the G98 or G99 ourselves.