Spacesolar develops space‑based solar power systems that capture sunlight in geostationary orbit and transmit it to Earth via 360° microwave or radio‑frequency beams, providing continuous, baseload electricity independent of weather.
Funding
£9.2M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Global electricity demand is projected to double by 2050, creating urgent pressure to replace fossil‑fuel generation with affordable, continuous, and low‑carbon power sources. Existing renewable technologies such as wind and ground‑based solar are intermittent, requiring large storage or backup capacity to ensure grid stability.
Solution
Space Solar develops space‑based solar power (SBSP) systems that capture sunlight in geostationary orbit and transmit electricity to Earth via high‑frequency microwave or radio‑frequency beams. By operating above the atmosphere, the satellites receive uninterrupted solar irradiance, delivering 24/7 baseload power without weather constraints. The company’s flagship CASSIOPeiA satellite concept uses lightweight, high‑concentration photovoltaic panels and a hyper‑modular architecture to scale production and reduce cost. A novel 360° wireless power‑beaming demonstrator (HARRIER) validates beam steering and retrodirective control, enabling safe, omni‑directional energy transmission to ground receivers that can be sited offshore or in remote locations. This approach provides dispatchable, exportable power that can be integrated with existing grids, support green‑hydrogen production, and enhance energy security for nations.
Target Audience
Primary customers are national grid operators, utilities, and governments seeking large‑scale, reliable renewable power, as well as large industrial users requiring continuous clean energy for processes such as hydrogen production or desalination.
Features
- Geostationary Solar Power Satellites equipped with large lightweight solar arrays and high‑concentration photovoltaics for high conversion efficiency
- 360° wireless power‑beaming technology (HARRIER) with beam‑steering and retrodirective control, eliminating moving parts and ensuring reliable transmission
- Ground‑based rectenna stations that can be located offshore, minimizing land use and exposure to environmental impacts
- Scalable, hyper‑modular satellite design allowing mass production of power modules to meet regional and global energy demand
- Continuous, baseload electricity generation independent of weather, providing grid‑balancing services and supporting intermittent renewables
- Low environmental footprint: minimal land requirement, reduced critical mineral usage, and no fuel‑burn emissions
- Capability to export power across borders without undersea cables, enhancing energy sovereignty and resilience