Research and analysis

Onshore wind and solar cost and technical assumptions

This report provides an update to information on cost and technical assumptions for onshore wind and solar.

• From: Department for Energy Security and Net Zero
• Published: 6 October 2025

Documents

Onshore wind and solar cost and technical assumptions

PDF, 1.68 MB, 84 pages

Details

DESNZ commissioned Arup to undertake this research covering updates to the cost and technical assumptions for the following technologies:

• onshore wind
• large-scale solar PV (>5MW)

The evidence drawn from research reviews in the Generation Costs Series informs:

• cost estimates and technical assumptions within the Generation Costs Reports
• administrative strike prices (ASP) analysis for the Contracts for Difference (CfD) renewables deployment scheme
• power sector modelling

Published 6 October 2025