Comment on: Part L changes cause confusion for engineers
This article is pretty misleading. Where authorities have a renewable energy requirement, this is expressed as % (usually 10%) reduction (post implementation of Part L requirements). Hence, the 2013 Part L improvement reduces the remaining % reduction that must be achieved via renewables. And no local authority demands that the renewable system must be heat producing (why not PV?). In any case, many authorities have moved away from renewables requirements to a simple % CO2 reduction beyond Part L (whether achieved with or without renewables). The 2013 Part L requirements were watered down from the original proposals to reach the energy requirement for Code Level 4 - so still plenty of scope for CO2 reduction whether from renewables or not.