Energy beamed from space – a radical idea that sounds like the stuff of science fiction. And yet, the idea is gaining traction. Space-based solar power (SBSP – not to be confused with SpongeBob SquarePants) offers a promising new frontier that could reshape how we think powering our towns and cities. By gathering solar power in space and transmitting it to Earth, SBSP could provide the UK with a reliable source of renewable energy, transforming our future energy systems.

What is SBSP?

For a technology that is out of this world, it is – in theory – quite simple. SBSP involves putting huge solar collectors in space to capture the Sun’s energy without the interference of Earth’s atmosphere, weather, and even the day-night cycle. Once that energy has been collected, it is wirelessly transmitted to Earth by lasers or microwaves, where it’s converted into electricity and fed into the energy grid.

Making SBSP an attractive option is that it’s not weather-dependent or limited by daylight hours. Imagine, round-the-clock electricity, 24/7, regardless of conditions on the ground. This is ‘innovation’ at its most exciting.

This technology could help us solve some of the biggest challenges we face on the road to Net Zero, from grid instability to reducing our reliance on fossil fuels – SBSP affords us an opportunity to harness an abundant energy source in pursuit of a cleaner, greener future.

What role can the UK play?

The UK has a proud history of innovating beyond our atmosphere (I’m looking at you, Satellite Applications Catapult). SBSP is no different. This is a technology that we can pioneer. With a commitment from government to help grow the SBSP ecosystem of private companies, academic institutions, and international partnerships, we can lay the groundwork for a space-based energy future.

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