The Liberal Democrats have hinted they would retrofit homes to the Passivhaus standard, EnerPHit, if elected in 2015
In a policy paper setting out the party’s plans for green growth, the Liberal Democrats have mooted plans to transform the Green Deal ‘into a comprehensive one-off programme to bring all homes up to the EnerPHit standard by 2050’.
The EnerPHit standard, is a version of the Passivhaus certification scheme specifically aimed at retrofit projects.
The paper proposes a ‘significant’ expansion of the Green Deal scheme, stating: ‘energy efficiency measures need to be treated as importantly as investment in new forms of generation’.
It is suggested that this will be achieved through offering differential stamp duty rates, and providing incentives to local authorities to reduce council tax for those improving their home’s energy efficiency.
The paper suggests that carbon emissions can be reduced by up to 20 per cent through maximising energy efficiency, and that remaining emissions can be sequestered in building materials.
Random testing of new homes, to ensure they meet standards is also proposed.
The paper adds: ‘Liberal Democrats would step up random testing of new homes’ energy performance, requiring those builders who have cut corners not just to rectify their omissions, but to include extra energy saving measures as a penalty to compensate householders too.’