Utilities and Broadband

Services

Utilities on the Isle of Wight are supplied by the same companies that serve mainland Hampshire, though the island's separation creates some unique challenges. Southern Water provides water supply and sewage treatment. The water supply comes from boreholes and reservoirs on the island, supplemented by a water main that crosses the Solent from the mainland.

Electricity is supplied via undersea cables from the mainland grid. Scottish and Southern Electricity Networks (SSEN) manages the distribution network. Gas is supplied to most urban areas, though some rural properties rely on oil, LPG or solid fuel heating.

Broadband has been a significant issue for the island. Superfast broadband (over 30Mbps) is now available to most properties in towns, following investment under the government's broadband programme. However, rural areas can still have slow connections. Full fibre (FTTP) coverage is expanding, with various providers rolling out infrastructure. Mobile coverage from all major networks is generally good in towns but patchy in rural areas and along parts of the coast.

Southern Water's sewage infrastructure has been a particular concern, with capacity issues affecting planning decisions and occasional storm overflow discharges into the sea. Investment in upgrading sewage treatment works is ongoing but has been criticised as insufficient. The island's separation means infrastructure upgrades tend to be more expensive per capita than on the mainland.