905. Ensuring electricity is cheaper than oil or gas is essential to incentivising people to switch to low carbon technologies like heat pumps and electric vehicles. Environmental levies placed on electricity mean that, without the Energy Price Guarantee, electricity is more expensive than gas. Government should deliver the Review of Electricity Market Arrangements (REMA) promised in the British Energy Security Strategy and rebalance these costs (as set out in Pillar 2). Analysis done in this Review shows that the relative price of gas and electricity is the largest determinant of the savings which households could gain from the transition - for example, a long-term gas price of 150p/therm can cause cumulative savings of decarbonised households to increase from £6,000 to over £13,000 by 2050. In the short-term, government should ensure there is a clear price signal in favour of technologies that use electricity rather than fossil fuels.