Available statistics on solar thermal heating cover its output rather than its capacity. These estimates are available only at the UK level and not regionally. They are:
Thousand tonnes of oil equivalent 2002 16.1 2003 19.8 2004 24.6 2005 29.4 2006 36.3 Source: Digest of United Kingdom Energy Statistics, 2007, Table 7.7
The Department does not hold the information on the annual turnover of the solar heating industry.
The Department does not hold information on the number of people employed in the solar heating industry.