Collective bargaining campaigners at The Big Deal claims to have cut the cheapest two year fixed deal on the market for 10,000 people.
The group claims it’s the first time a collective switch has created a new “market beating” tariff.
Independent supplier Green Star Energy is offering an average £1,055 per year compared to Ofgem’s estimate of the average annual energy bill of £1,346 per year.
The deal will lower the average bill by £291 a year and £582 over two years, said the group.
The 10,000 Big Deal members – more 60% of whom have never or hardly ever switched before – stand to save a collective £5.8 million.
“We’re pleased, we think we’ve done well with our collective switch,” co-founder Henry de Zoete told ELN.
The deadline for members to take up the deal in the switch is Tuesday 15 July. Green Star is backed by US firm Just Energy.