Moreover we also study the performance

Fig. 1. Trends in the use of renewable energy for heat, electricity and transport [2].Figure optionsDownload full-size imageDownload as PowerPoint slide
The main sources of renewable heat generation in the UK in 2010 were direct ABT-046 combustion (nearly 90% of the total renewable heat generated in the UK), active solar thermal systems (8%), and heat pumps (2%) [2].
The increase in the period from 2006 to 2012 can be attributed to a number of small-scale support instruments which are described in Section 3. It can be noted that it is not seen as desirable to continue to rely on these to drive the scale of RES-H technology that is required for the UK to meet its targets. There are various reasons for this. Some of the instruments do not default to driving renewable energy but can prefer energy efficiency which makes strategic planning difficult. Some are intended as pilot projects and not for large-scale application. Some, but by no means all, of the 19% increase in 2013 is likely to have been driven by the development of the RHI and the Renewable Heat Premium Payment (RHPP) with the percent of renewable heat supported by the RHI increasing from 1% to 3% between 2012 and 2013 [2].