This paper aims to quantify the effect of the Feed-in-Tariff (FiT) rates on the installed capacity of anaerobic digestion (AD) plants in the UK. The paper develops multiple Linear Regression models (LR) to understand the effect of the different factors that drive the diffusion of AD plants. Emerging results suggest that among the different incentives for AD, only the FiT has a significant effect. Secondly, this effect comes to play only after the announcements of revisions to the programme. And third, the results confirm that the FiT has a different effect for each plant size where the medium size plants are the most responsive to the programme, whilst the large plants are the least responsive.
Keywords anaerobic digestion, modelling, policy evaluation, government incentive, FiT, OLS regression