Space Energy Initiative

Helping nations achieve Net Zero with Space-Based Solar Power and creating new commercial opportunities

Our Mission

We recognise the challenges of Net Zero, and the need for new baseload energy technologies to complement our intermittent renewables. The SEI will lead the development of Space Based Solar Power for the UK, offering large scale, safe, and secure energy day and night, through all seasons and weather. Through a structured and collaborative programme of design, research and technology demonstration, the SEI will promote integration and innovation between Space, Energy, Digital, and Manufacturing ecosystems.

mission icons

About Us

Climate change and the pressures on global energy resources are urgent problems.

The UK has set out an ambitious national clean energy policy – Net Zero – to fully decarbonise the economy by 2050. This future energy scenario requires clean and sustainable energy generation from renewable sources for homes and industry. This energy generation must at the same time remain affordable, reliable and secure if our economy is to thrive.

Space Based Solar Power offers a range of characteristics which could help the UK deliver Net Zero, with a new source of abundant, sustainable power. SBSP is the concept of harvesting free solar energy in space, beamed to Earth safely as microwaves, collected and converted to electricity for the Grid, each one equivalent in output to a large coal power station.

The Space Energy Initiative (SEI) will bring together government, research and industry in the energy and space sectors to develop and deliver a co-ordinated programme of technology development and demonstration.

Meeting the timeline set out by the Government’s Net Zero pledge, and in partnership with other nations, the aim is to establish the first orbital demonstrator SBSP system by 2030, with the first of a kind operational system delivering power into the grid by 2040. The first generation of Solar Power Satellites would be in operation by the mid 2040s, replacing a substantial proportion of the UK’s legacy fossil fuel energy generation capacity.



Research into key opportunities and development of capability and knowledge in an open environment. Researchers and commercial partners work together to establish the key research questions and topics to progress.


Development and Innovation

Development and innovation through collaboration, leading to design and demonstration of systems that address international energy requirements.


Implementation and Commercialisation

Commercialisation led by operators and service providers to ensure commercial viability and realisation of climate and resilience benefits of space-based energy assets.

Our Objectives:

Convene an International Partnership for development of Space Based Energy
Establish multidisciplinary advisory board(s) for technical, ethical, commercial, and policy guidance and advice
Secure funding for delivery of Research, Development and Innovation, and programmes of activity
Promotion, awareness raising and capacity building for space based energy implementation
Expand and prioritise research into feasibility and systems design of Space Based Energy
Support the Design, Development, and Operationalisation of the first Space Based Energy system by 2030


AE Logo

Aetheric Engineering


Airbus Defence & Space


Archangel Lightworks

image 21 01 22 04 24

Commercial Space Technologies

Catapult PNG image

Compound Semiconductor Applications Catapult



BEIS logo

Department for Business, Energy and Industrial Strategy

DIT Logo

Department for International Trade

Logo rgb



Energy Systems Catapult

Exotopic Logo


City UoL logo RGB DK1a (1)

City, University of London

durham uni logo

Durham University




Frazer-Nash Consultancy


Innovate UK


International Electric Company

Imperial College London monotone logo

Imperial College London

Lumi Logo

Lumi Space

Magdrive black logo transparent



Manufacturing Technology Centre

Metasatuk Logo Full Color RGB 2000px@144ppi

Metasat UK

Nano Avionics 01 cut

Nano Avionics

download (1)

National Grid

NORSS black on transparent high rest logo

Northern Space and Security Ltd (NORSS)

logo ful8j3 oss

Oxford Space Systems

qmul logo

Queen Mary University of London

Reaction Engines logo new 400

Reaction Engines

New RF logo WithTag RGB v2


SA SM Colour

Satellite Applications Catapult

SPACE POWER Logo2 Conv 01

Space Power


Space Solar Limited

sstl 52995860902

Surrey Satellite Technology Limited (SSTL)

SSC Logo

Surrey Space Centre

1005 SwanUni Eng 2017 [662] v2

Swansea University

Logo 2018 01 23 TD e2v w Imaging Tag


Thales Alenia Space Logo.svg

Thales Alenia Space

UKLSL Colour Logo Hi Res 2020

UK Launch Services Limited


University of Cambridge

University logo marine1 transparent

University of Southampton

strath fullcolour

University of Strathclyde

University of Suffolk Logo HR RGB

University of Suffolk

University of Surrey logo 1

University of Surrey