In 2001, Bear Grylls bought a Welsh island for £95,000 and spent years rebuilding its wrecked cottages; more than 20 years later, the home still runs on wind, solar and collected water

Most newlyweds save up for a flat. Bear Grylls bought an island with a crumbling lighthouse, no electricity and no running water. More than two decades later, the island is still off-grid and fully functional. A 2021 study in the International Journal of Renewable Energy Research modeled a similar wind-solar-battery setup for an off-grid home and found that steady power depends on carefully matching the size of the turbines, panels, and batteries to each other. Long before off-grid living became a trend, Grylls had built his own version on a rocky patch of Wales.

An island cheaper than a London apartment

In 2001, newlyweds Grylls and his wife, Shara, were searching for a flat in London. The cheapest place they found cost £200,000. In an account he gave at the time, Grylls said he had also come across a rundown houseboat in Battersea for £100,000 and this same island off the coast of Wales for £150,000, and figured that if he could talk the island's owners down to £95,000, he could offer his wife two homes for the price of one. His idea worked. The island is St Tudwal's Island West, lying off the Llŷn Peninsula near Abersoch in North Wales.

From rats and rubble to a family home

The island was not ready to live in. Speaking to The Times, Grylls mentioned that there was a 200-year-old lighthouse and two lightkeepers' cottages, but the buildings had no power, no water, no roof, and a rat problem. Grylls has said the couple spent years transforming the ruin into a place to live, eventually combining the two cottages into one four-bedroom home. In an interview with Vanity Fair, Grylls said that the house stays cool in summer and warm in winter, thanks to two-foot-thick walls of limestone. There is no mains electricity, no mains water, no bridge. The family comes over in an inflatable boat, and it took about ten years to get permission for a proper slipway.

Powered by wind, sun and rain

Some 25 years have passed since then, but the house remains unconnected to the national grid. It relies on a combination of wind turbines, solar panels, and rainwater collected from the roof. As the renewable-energy study mentioned earlier shows, maintaining such a system requires considerable planning: the components must all be carefully sized to one another, or the household risks simply running out of power.

Water brings its own complications. Grylls has spoken of how the rainwater collected off the roof used to stand stagnant and run out quickly until a friend organized for a drilling team to sink a 350-foot borehole into the island. The collection of rainwater on small islands is a familiar, rather than an unusual, problem. According to a study on rainwater harvesting on Kefalonia Island, published in the International Journal of Global Environmental Issues, Greek islands have used rooftop catchment systems for centuries, and many modern setups still rely on the same basic combination of a catchment area, connecting pipes, and a storage tank. That same basic concept, a roof, a pipe, and a tank, is still part of what keeps water flowing on Grylls' island today, along with a borehole the family later drilled for backup.

Why Grylls’s off-grid home still resonates

Part of the appeal here is not the celebrity name. In an interview with Aspire Travel Club, Grylls described the island as a "little slice of heaven," and he has said elsewhere that the experience of bringing up his three boys in the absence of phones, cars, and deadlines was among the most special moments of being a family. For readers who grew up online and are tired of hustle culture, disconnecting can feel less like a whim and more like a goal. Grylls did not need any research to prove it to him. He built a life around it, one solar panel and rain barrel at a time.

This does not mean, however, that an off-the-grid lifestyle is an easy one. In comments reported by Hello Magazine while he was promoting Celebrity Bear Hunt, Grylls himself has admitted that people always picture something more sophisticated and luxurious than the reality of life in the cottage. Grylls' story suggests that self-sufficient living requires preparation, experimentation and a willingness to live with limits many people never consider. A quarter century after buying the lighthouse cottage as a slightly reckless wedding-year decision, it is still standing, still powered by nature, and still, by his own account, his favorite place on Earth.