Bureau d études avec plans, calculs Eurocode et maquette de structure photovoltaïque
Technical resource centre

Sunrak guides: understand before ordering.

Our engineering team shares here the technical and regulatory fundamentals of a custom photovoltaic structure. Eurocode 1, material choice, planning requirements, honest comparisons. No sponsored content.

Planning file and solar carport model for permission application
PLANNING · 8 min

Planning permission for a solar carport in the UK 2026: permitted development or full application?

Complete UK guide to planning rules for solar carports: permitted development rights, full planning thresholds, Article 4 directions, conservation areas, listed buildings. Timelines, documents, common pitfalls.

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Commercial parking lot fitted with metal photovoltaic canopies
PLANNING · 9 min

Solar canopy obligations on UK car parks 2026 (planning, Net Zero, DNO, local rules)

Complete view of UK car park solar canopy obligations 2026: national planning policy (NPPF), local authority requirements (London, Manchester, Birmingham), Net Zero 2050 alignment, DNO connection rules, MCS certification.

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Solar carport offer review with contract and warning notes
SCAM · 8 min

Free solar carport in the UK: scam or real offer? The 7 pitfalls to know in 2026

Free solar carport or panels in the UK: distinguishing scams from real offers. Rent-a-roof schemes, hidden finance, doorstep selling — full 2026 guide with the real grants and incentives that can deliver net £0 over the long term.

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Wood aluminium and galvanised steel comparison for a solar carport
COMPARISON · 8 min

Solar carport wood or metal: honest 2026 comparison (lifespan, cost, structural)

Solar carport comparison wood (treated pine, larch, douglas fir) vs metal (aluminium 6063-T5, galvanised steel Z275): real lifespan, maintenance, structural loads, 25-year cost of ownership. Engineering team view, no sponsored content.

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Engineering desk with Eurocode snow and wind load calculations for a solar structure
BS EN 1991 · 10 min

Snow and wind load calculation BS EN 1991 for solar carport and PV structures in the UK

Method to identify your snow load and wind speed zone under BS EN 1991-1-3/1-4 and the UK National Annex, with worked examples for London, Manchester and Edinburgh. Engineering check included in every Sunrak quote.

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Anodised aluminium and galvanised steel profiles for a solar structure
MATERIALS · 7 min

Anodised aluminium or galvanised steel: which material for a solar structure

Technical comparison anodised aluminium 6063-T5 vs galvanised steel Z275 for solar carports, canopies and ground mounts: density, corrosion, price per kg, aesthetics, coastal lifespan. Verdict per use case.

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