Research and analysis

Space based solar power

Studies on the technical feasibility, costs, economics of space‑based solar power (SBSP) and potential early‑market adoption pathways for to help deliver the UK’s net zero policy.

• From: Department for Energy Security and Net Zero and Department for Business, Energy & Industrial Strategy
• Published: 27 September 2021
• Last updated: 13 February 2026 — See all updates

Documents

Space based solar power: de-risking the pathway to net zero

PDF, 766 KB, 26 pages

Feasibility of small-scale space based solar power (SBSP) systems for early market adoption

Ref: RAF036/2425

PDF, 1.79 MB, 94 pages

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Details

Space based solar power (SBSP) is the concept of collecting solar power in a high earth orbit and beaming it securely to a fixed point on the earth. Its main attribute is the ability to deliver clean, baseload energy, day and night throughout the year and in all weathers. Recent technology and conceptual advances have increased the potential viability of SBSP. In response, the government has commissioned 2 studies to assess the opportunity and pathway to deployment.

1. Space based solar power: de-risking the pathway to net zero (2021) 

This study looks at the technical feasibility, cost and economics of space based solar power as a novel generation technology to help the UK deliver its net zero policy. It also identifies key risks and recommendations for development.

The technical reports which support this document are available on the Frazer-Nash website:

• the Phase 1 report contains a review and analysis of the engineering feasibility of SBSP
• the Phase 2 report presents an assessment of the likely cost and economic contribution of SBSP as a possible future energy technology in the UK

2. Feasibility of small-scale space based solar power systems for early market adoption (2025)

Building on the 2021’s feasibility study, this study explores whether smaller-scale SBSP systems could enable early commercial adoption in the 2030s, reducing investment risk compared to gigawatt-scale architectures. It compares current SBSP designs and defines a minimum viable product (MVP) that maximises grid utility and investor return. It also explores alternative markets including global opportunities, assesses benefits to the GB energy system, and evaluates financial feasibility under government support mechanisms.

Related UK programme

• Space Based Solar Power Innovation Competition: successful projects

Published 27 September 2021

Last updated 13 February 2026 + show all updates

1. 13 February 2026

   Published the Feasibility of Small-Scale Space Based Solar Power (SBSP) Systems for Early Market Adoption.

2. 27 September 2021

   First published.