Biomass 21 – Tansterne

Project Description

Solar 21 has constructed a 22MW biomass plant located in Tansterne near Hull (UK). The plant, on a 12-acre site, was energised in March 2017 and was commissioned in February 2018.

Hull has established itself as a hub for renewable energy in the UK. Siemens and Dong Energy are active in the area alongside Solar 21. Designed by HRS and built by Hull-based steel fabricators, CF Struthers, the plant was recognised for its advanced design and renewable credentials when it was awarded “Best Renewable Energy Project or Installation” at the 2017 Humber Renewable Awards.

The plant is designed to operate 24 hours a day, seven days a week and 365 days a year and will burn 150,000 tonnes of waste wood per year at full capacity. The waste wood is supplied by contractors in the local Hull area, wood that would otherwise go to landfill.

Project Status

The plant is now commissioned.  Final sign-off (G59 Certificate) was received by Northern Power Grid on 15th February 2018.

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Latest News

Business as usual at Tansterne Biomass plant

Plant unaffected by news that O&M contractor HRSET has gone into administration It was with regret that Solar 21 learned that HRS Energy Tansterne Ltd. (HRSET) has gone into administration. …read more

Climate Action Plan

Our response to the DCCAE’s Climate Action Plan

The government must act to encourage renewable energy development in Ireland. On May 9th 2019 Ireland became the second country in the world to declare a climate and biodiversity emergency. …read more


To truly transform our economy, protect our security, and save our planet from climate change, we need to ultimately make clean, renewable energy the profitable kind of energy.

BARACK OBAMA, Address to Joint Session of Congress, Feb. 24, 2009

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