West Sussex · RH12 and RH13
Solar Panels Horsham: Installers for RH12 and RH13
Solar, battery storage and EV charging in Horsham — designed and installed by a local, MCS-certified team based in Portsmouth.
Quick answer
Horsham (RH12/RH13) is in the UKPN distribution area, and we file the G98/G99 application for you. This inland West Sussex town gets reliable yields — a 4kW array here typically generates around 3,850–4,200 kWh a year.
Horsham is a prosperous inland West Sussex market town with a well-preserved historic core around The Causeway and a wide ring of modern and suburban housing at Roffey, Broadbridge Heath and Southwater. The town has seen substantial new-build growth, so we work on both older tile-and-slate roofs in the centre and large unshaded roofs on recent estates — the latter often ideal for bigger arrays paired with battery storage.
A 38-mile drive north-east of our Portsmouth base, Horsham connects through UK Power Networks (UKPN) — the Sussex side of our coverage, distinct from Hampshire's SSEN. We handle the full G98/G99 application, design discreet systems for the conservation area, and size batteries and EV chargers to suit family homes on the newer developments.
Solar in Horsham: the local detail
Grid connection (DNO)
Horsham is in the UKPN area (the Sussex side of our coverage, distinct from Hampshire's SSEN). G98 covers smaller systems; G99 (applied for in advance) covers batteries and larger arrays — SCSS files the application.
Local planning authority
Horsham District Council
Heritage & conservation
The Horsham town-centre conservation area (The Causeway, Carfax, Park Street) with many listed buildings calls for discreet rear-slope, all-black arrays; the large Roffey, Broadbridge Heath and Southwater estates are generally unrestricted.
Local housing stock
Historic tile-hung and timber-framed properties around The Causeway, Victorian and Edwardian streets, and extensive modern estates at Roffey, Broadbridge Heath and Southwater.
Typical roofs
Heritage tile, slate and Horsham-stone roofs in the centre needing sensitive fixings; large, simple, unshaded roofs on the newer estates ideal for sizeable arrays.
Sunlight & generation
~1,055 kWh/kWp per year; a 4kW array ≈ 3,850–4,200 kWh annually
Areas we cover in & around Horsham
Roffey · Broadbridge Heath · Southwater · Horsham Park · Littlehaven · Warnham
~38 miles north-east of HQ; scheduled visits rather than daily passing trade.
A nearby installation
Tesla Powerwall Installation
East Sussex · 7.62kWp · 80% bill reduction
Our Horsham services
Solar Only
Generate clean energy, reduce your bills, and take the first step towards energy independence.
Solar & Battery
Maximise your energy, reduce costs and increase independence with a combined solar and battery system.
Battery Only
Flexible, efficient battery storage for every home — even without solar panels.
EV Charging
Charge at home, efficiently and cost-effectively with smart EV charging solutions.
Nearby areas
FAQ
Solar panels in Horsham: your questions
How much do solar panels cost in Horsham?
Do I need planning permission for solar panels in Horsham?
Which electricity network (DNO) covers Horsham?
How much electricity will solar panels generate in Horsham?
Which parts of Horsham do you cover?
Solar Panels Horsham: Two Network Operators, Two Tariff Regions and What an RH Roof Produces
Horsham has a quirk worth knowing before you get quotes: the district is split between two electricity networks. Our postcode checks put Horsham town (RH12 and RH13) on UK Power Networks' South Eastern network, while Billingshurst (RH14), in the same district, is on SSEN's Southern network. That decides who approves a battery's G99 application, and it puts the two in different Octopus tariff regions: on 17 September 2026 Flux paid 29.79p per kWh between 4pm and 7pm in Horsham's South Eastern region, against 29.00p in Billingshurst's Southern region. Outgoing Octopus pays 12p in both.
If you want to check for yourself, look at the long MPAN number on your electricity bill. The first two digits of the core number are the distributor ID: 19 means South Eastern (UKPN) and 20 means Southern (SSEN). Homes on an independent network carry a different code, and we confirm the details either way.
Inland West Sussex is a little less sunny than the coast. PVGIS 5.3 puts a 4kW unshaded, south-facing array in Horsham at about 4,231 kWh a year, against about 4,618 kWh at Worthing. East or west-facing arrays here give about 3,360 and 3,351 kWh. Around 2,879 kWh of the south-facing total arrives between April and September.
HM Land Registry's July 2026 averages for Horsham district were £441,654 overall and £765,698 for detached houses. If your home is in a conservation area, panels on the roof slope normally keep permitted development unless an Article 4 direction applies; Horsham District Council publishes its Article 4 direction areas as open data, and we check them before designing. Prices start from £4,995 for solar and £6,995 for solar with a battery, subject to survey.
- ✓Horsham town (RH12, RH13): UK Power Networks, Octopus South Eastern region; Billingshurst (RH14): SSEN, Southern region
- ✓MPAN check: distributor ID 19 = South Eastern (UKPN), 20 = Southern (SSEN)
- ✓PVGIS 5.3: a 4kW unshaded array in Horsham ≈ 4,231 kWh a year south-facing (east ≈ 3,360, west ≈ 3,351)
- ✓HM Land Registry, July 2026: Horsham district average £441,654; detached £765,698
- ✓Solar from £4,995 · solar and battery from £6,995 (subject to survey)
Is Billingshurst on the same electricity network as Horsham?+
No. Our postcode checks put Horsham town (RH12, RH13) on UK Power Networks' South Eastern network and Billingshurst (RH14) on SSEN's Southern network. We file your G98 or G99 paperwork with whichever operator serves your address.
How can I tell which network operator serves my Horsham home?+
Check the MPAN on your electricity bill. The first two digits of the core number are the distributor ID: 19 is South Eastern (UK Power Networks) and 20 is Southern (SSEN). Independent networks use other codes, and we confirm it at the survey.
What export rate applies in Horsham?+
Horsham town is in Octopus's South Eastern region, where Flux paid 29.79p per kWh between 4pm and 7pm on 17 September 2026, 10.24p in the day and 5.05p from 2am to 5am. Outgoing Octopus pays 12p flat.
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