Nesjavellir Geothermal Plant

Nesjavellir

Golden Circle

Nesjavellir sits on the Hengill volcanic system about an hour's drive from Reykjavík via Route 435 and produces around 120 MW of electricity plus enough hot water to supply a large share of the capital's heating. The plant went into operation in 1990 after exploratory drilling began in the 1960s, and the infrastructure — insulated pipes, steam columns, turbine halls — makes a dramatic impression against the raw geothermal landscape. The plant itself is not open for public tours, but the surrounding Hengill area has good hiking. A marked loop of around 8.5 kilometres passes mossy lava fields, active fumaroles, and steaming vents with views over Lake Þingvallavatn, plus close views of the plant's pipework from the hillside above. The Hellisheiði power station about 11 kilometres away operates a public visitor centre if you want an indoor geothermal exhibit. No admission is charged to walk the area. The road from Þingvellir along the lakeshore is scenic and paved. Access is best June through August — winter snow can close higher ground.

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