Commercial solar panel installers in Horsham
Horsham combines a genuinely large pharmaceutical R&D campus (Novartis Horsham, still one of the largest pharma sites in southern England) with the Foundry Lane / Redkiln light-industrial base and the newer Broadbridge Heath distribution build-out. RH12–RH13 also carries a substantial insurance HQ presence (RSA-legacy sites) and the Warnham brick and quarry industrial hinterland. UK Power Networks' Horsham 33 kV has capacity for typical rooftop PV following the Broadbridge Heath primary works.

Is your Horsham site a fit for commercial solar?
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Best-fit sectors in Horsham
- Novartis Horsham Campus pharma R&D
- Foundry Lane & Redkiln light manufacturing
- Broadbridge Heath distribution and retail-park
- Warnham brick and quarry industrial
Solar yield
Areas we cover near Horsham
Broadbridge Heath · Southwater · Warnham · Slinfold · Roffey · Barns Green · Colgate-edge
Postcodes: RH12, RH13
Funding for Horsham businesses
Run the numbers for your Horsham site
Commercial solar by sector in Horsham
Based on the dominant industries across Horsham, these are the commercial solar specialisms most relevant locally - with the typical site profile for each.
Factories & Manufacturing solar in Horsham
Heavy daytime load and process heat - fast payback on industrial roofs. In Horsham that means novartis horsham campus pharma r&d and foundry lane & redkiln light manufacturing and warnham brick and quarry industrial - sites we survey regularly across RH12 and the surrounding South East patch.
- Typical system size
- 300 kWp - 1.5 MWp
- Typical payback
- 3 - 4 years
- On-site self-consumption
- 80 - 95%
Indicative figures for well-matched UK sites - your feasibility review models your actual roof, demand and tariff.
See the full factories & manufacturing guide →Warehouses & Logistics solar in Horsham
Large flat roofs, high daytime demand - the strongest commercial solar fit. In Horsham that means broadbridge heath distribution and retail-park - sites we survey regularly across RH12 and the surrounding South East patch.
- Typical system size
- 250 kWp - 1 MWp+
- Typical payback
- 3.5 - 4.5 years
- On-site self-consumption
- 70 - 85%
Indicative figures for well-matched UK sites - your feasibility review models your actual roof, demand and tariff.
See the full warehouses & logistics guide →Supermarkets & Retail solar in Horsham
Predictable trading-hours demand and multi-site rollouts. In Horsham that means broadbridge heath distribution and retail-park - sites we survey regularly across RH12 and the surrounding South East patch.
- Typical system size
- 100 - 400 kWp
- Typical payback
- 4 - 5.5 years
- On-site self-consumption
- 75 - 90%
Indicative figures for well-matched UK sites - your feasibility review models your actual roof, demand and tariff.
See the full supermarkets & retail guide →Commercial solar in Horsham - FAQs
Does Novartis Horsham's Scope-3 policy influence local PV?
Yes - Novartis has a group-wide 2030 net-zero-in-own-operations and 2040 across value chain target, and its Horsham-hosted tier-2 laboratory-consumables and clinical-services suppliers are now expected to demonstrate renewable generation as part of annual supplier evaluations.
How does UKPN handle RH12/RH13 G99?
The Broadbridge Heath primary works completed 2022–23 provide reasonable headroom - sub-500 kWp with export limitation typically clears in 8–12 weeks and 1 MWp is deliverable subject to network study, particularly on the Foundry Lane side of RH13.
Are Foundry Lane and Redkiln estates PV-viable?
Yes - the Foundry Lane / Redkiln light-industrial stock is broadly 1990s metal-deck with predictable structural capacity and modest shading. Typical 100–250 kWp arrays with 5–7 year payback where occupier daytime demand is present.
Do South Downs / High Weald overlays affect Horsham arrays?
Only marginally - parts of southern RH13 sit within the High Weald National Landscape (formerly AONB) and require slightly enhanced visual-impact assessment for prominent rural sites, but standard commercial rooftop arrays generally pass without objection.
How wide is Horsham coverage?
Broadbridge Heath, Southwater, Warnham, Slinfold, Roffey and Barns Green are day-one visits; Crawley, Haywards Heath, Guildford-edge, Billingshurst and Pulborough are on planned survey days from the West Sussex base.
Horsham is part of our South East commercial solar service area. See the South East regional guide →
Ready to see whether your roof could reduce your energy bills?
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- Solar potential by postcodeSee local solar yield for your business postcode.
- Commercial solar cost guideIndicative UK prices per kWp and what drives them.
