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The life of a solar project, from site search to decommissioning

The full lifecycle of a utility-scale solar project, from site search to decommissioning — what happens at each stage and who is responsible.

By ANR Horizon Editorial Team · · 4 min read

Aerial view of rows of solar panels across green farmland

A solar project's life runs for decades, but most of the work that decides whether it succeeds happens in its first few years. Seeing the whole lifecycle helps everyone involved — landowners, developers, consumers, investors and EPC partners — understand where they fit and where the risks lie.

1. Origination

A developer identifies an opportunity: a tender to bid for, an industrial consumer seeking power, or a region with good resource and grid access. Early work is desk-based — resource data, grid maps, land availability and policy.

2. Site identification and land

Candidate sites are screened for size, terrain, shading, drainage, access, grid proximity, land-use classification and title. Landowners are approached, and land is secured through leases or purchases. This stage often determines the project's timeline more than anything else. See how developers source and qualify land.

3. Development

With land in view, the developer works through:

  • Grid connectivity applications and studies (grid connectivity basics)
  • Approvals required for the site and project (approvals overview)
  • Offtake — a PPA through a tender or with commercial buyers (what a PPA is)
  • Technical studies — resource assessment, energy yield, geotechnical and hydrological surveys
  • Design — preliminary layout and technology choices

4. Financing

Lenders and investors review the project's land, permits, connectivity, contracts and energy yield before committing capital. Gaps found here — a missing land right, an unclear approval — delay financial close.

5. Procurement and construction

An EPC partner is engaged (how EPC partnerships work) to procure equipment and build the plant: site preparation, foundations, structures, modules, electrical works, substation and evacuation line. Construction itself is often relatively quick compared with development.

6. Commissioning

The plant is tested, synchronised with the grid and declared commercially operational. Handover from construction to operations needs careful documentation — see our commissioning and handover checklist.

7. Operations

For the rest of its life, the plant is operated and maintained: cleaning, maintenance, monitoring and reporting. This phase decides whether the project actually earns what it was financed on. See O&M for solar plants.

8. Asset changes

During operations, projects are often refinanced or sold. New owners commission due diligence (investor due diligence), and land leases usually allow assignment to the new owner.

9. Repowering or decommissioning

Toward the end of the plant's planned life, the owner decides whether to repower with newer equipment or decommission and restore the land. See end-of-life solar modules.

Who does what

StageMain parties
Origination & landDeveloper, land partners, landowners
DevelopmentDeveloper, consultants, transmission utility, authorities
FinancingDeveloper, lenders, investors
ConstructionEPC partner, owner's project manager
OperationsOwner, O&M partner
End of lifeOwner, recyclers, landowner

Where projects most often stall

Across the lifecycle, a few stages account for most delays:

  • Land — incomplete documentation, multi-owner footprints and holdouts
  • Grid connectivity — substation capacity, connectivity approvals and evacuation line right of way
  • Approvals — sequencing problems, where one approval depends on another not yet obtained
  • Financing — gaps in land rights or permits discovered during lender due diligence
  • Construction interfaces — site access, landowner concerns and utility coordination

Most of these are visible early to anyone looking for them. The cost of resolving them rises sharply the later they are found.

What each party should prepare

Landowners: clear, up-to-date land records; agreement among co-owners; clarity on what they want from a lease. See preparing land for a sale or lease.

Developers: a realistic land brief; early grid screening; a plan for approvals; a land team with local knowledge.

Industrial consumers: consumption data and bills; clarity on their goals (cost, sustainability, reliability); internal decision-makers identified.

Investors: clear investment criteria; access to specialist due diligence; a view on how the asset will be operated after acquisition.

EPC partners: confirmation that land, access and rights of way are secured before mobilising.

Timelines vary widely

There is no standard timeline for a solar project. A project on clean, single-owner land with a nearby substation and a clear offtake route can move quickly; a project with a multi-owner footprint, a long evacuation line and complex approvals can take many times longer. Planning should be based on the specific project's risks, not on a generic schedule.

Keeping records across the lifecycle

Each stage produces documents that later stages depend on: land records feed lender due diligence, approvals feed construction, commissioning tests feed warranty claims, and operating data feeds any future sale. Projects that keep one organised documentation file from the start move faster through financing and transactions. See building a project documentation file.

Where we fit

Our work is concentrated where projects are most fragile: sourcing and qualifying land, coordinating landowners and counterparties, and owner-side project management through construction to close. See how we work.

Frequently asked questions

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