Solar PV Development - Iberia Edition 2026

OVERVIEW

This is a working document, not a market report. It assumes you are trying to acquire, develop, finance, build or sell a utility-scale solar project in Spain or mainland Portugal.

Most solar publications tell you how many gigawatts Iberia installed, what irradiation looks like, or how large the pipeline could become. Those are useful context and poor sequencing advice. This guide tells you which evidence to obtain, in what order, which authority or counterparty controls it, what each document actually proves, and what happens when you commit capital before the evidence exists.

The single organising idea: solar development is about turning a site into rights. Sunshine is rarely the constraint. The real bottlenecks are land, grid, permits and financeable revenue. Spain and Portugal share the Iberian Electricity Market (MIBEL); their development rights do not - so the two regimes run side by side throughout, compared only where the comparison changes a decision.

WHAT THIS EDITION COVERS

Twenty-five parts covering the full development sequence - the map of who does what, choosing your game, site selection, securing the land, securing the grid, permitting and politics, environment, landscape and archaeology, agrivoltaics, design and energy yield, offtake and revenue, the capital stack, procurement and EPC, construction to COD, signing the project, exit, life after COD, taxation and incentives, pitfalls, a worked example, a regional playbook, acquisition due diligence, development economics and valuation, PV + BESS, repowering and end of life, and investment committee and data room controls. Scope is utility-scale ground-mounted PV, agrivoltaics, hybridisation and selected PV+BESS interfaces, MIBEL merchant and PPA revenue, project finance, development-stage and operating M&A, construction, O&M, repowering and decommissioning in peninsular Spain and mainland Portugal; the Canary Islands, Balearic Islands, Azores and Madeira have separate system regimes and are out of scope. Closes with a tear-out field checklist and twelve appendices - including a site screening scorecard, grid and permit control sheets, a model input dictionary, an acquisition DD request list, an RTB/closing matrix and a country/regional status control sheet - that turn the framework into a transaction tool.

WHO THIS IS FOR

Developers, investors, lenders, EPCs and asset managers acquiring, developing, financing, building or selling utility-scale solar projects in Spain and mainland Portugal.

WHAT YOU GET

• Practical development guidance, not market sizing
• Spain and Portugal side by side - a country matrix wherever the comparison changes a decision
• Deal Evidence - a real, dated public project or transaction behind each point
• What This Costs You - the cash, schedule or valuation consequence of getting a section wrong
• Development Gate - the evidence that must exist before the next capital release
• Ask Before You Sign - questions for the landowner, grid operator, EPC, lender, seller or offtaker
• Best Practices - numbered, actionable instructions closing each part
• A worked example, from search area to operating asset
• A regional playbook for when national law meets a real parcel in a real region and municipality
• A tear-out field checklist and twelve appendices, including control sheets and an RTB/closing matrix
• A sources appendix listing 115 Spanish, Portuguese and Iberian authorities and references, reviewed through 16 August 2026