Crossflex: concept and early development of a true building integrated wind turbine

Tim Sharpe, Gordon Proven

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)


This paper describes the concept development and work to date, of an innovative ?true? building integrated wind turbine. The context for this is the role of small-scale renewable energy in addressing climate change. In the UK a number of small wind turbines have reached the market, however, in almost all cases, these are existing HAWT or VAWT tower mounted systems. Due to their inherent design qualities, and issues such as planning requirements, these have much reduced output due to their form and siting and are unable to take advantage of augmented airflow around buildings. The Crossflex proposal is a radical new development of a Darrieus turbine form. As well as having a technically innovative flexible blade system, it also utilises a lightweight cowling system that can provide both augmented airflow and improved visual integration into new and existing building forms. It is a modular form that can be sited on ridges and corners of buildings to provide useful levels of generation.
Original languageEnglish
Pages (from-to)2365-2375
Number of pages11
JournalEnergy and Buildings
Issue number12
Early online date14 Aug 2010
Publication statusPublished - 31 Dec 2010


  • architecture
  • buildings
  • energy
  • renewables
  • integrated wind turbine


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