Labour's green energy subsidies are costing British households £12 billion annually.

This amounts to an extra £450 per household each year.

The breakdown of these green levies includes £2.3 billion annually for Contracts for Difference subsidies.

A further £7.8 billion goes to the Renewables Obligation scheme, encouraging energy companies to adopt green practices.

Small-scale renewable subsidies under the Feed-in Tariff scheme cost £1.86 billion yearly. These costs are most visible through the £150 increase on energy bills.

However, businesses are passing on their higher energy costs to consumers. This means two-thirds of the green levy costs appear in higher retail prices.

Official estimates show these costs are set to rise to £14.8 billion annually by 2030.

This comes despite Labour's mission to create a "zero-carbon" electricity system that will supposedly "lower energy bills for good".

The figures are fuelling growing concerns about the UK's green energy transition costs.