The UK government unveiled a slew of measures to its Renewable Heat Incentive to ensure it stays within the budgetary limits proposed by the Department of Energy and Climate Change (DECC).

Several improvements have also been proposed to the initiative, incorporating the feedback received from the consultations carried out in July 2012.

Energy and Climate Change Minister Greg Barker remarked that the measures were intended to ensure the initiative achieves its objectives while remaining within the means laid out.

"That’s why we are introducing a new, flexible way to control spending, alongside some further improvements to the scheme. This is however just the first step on our journey to safeguard longevity, provide certainty to industry and sustain growth under this scheme.

"We are also continuing to explore whether the tariffs we offer are set at the best levels to encourage further uptake, looking at how we can open up the scheme to new technologies, and considering the right approach to encourage householders to invest in renewable heat," noted Barker.

Some of the measures introduced include the requirement of biomass installations to demonstrate sustainability starting April 2014; air quality requirements will also be mandatory for solid biomass installations.

Metering requirements will be simplified to reflect feedback received from participants and to reduce burdens on industry.