Energy giant launches new 'heat pump saver tariff' as latest government data confirms May was second most popular month ever for heat pump grant scheme
Tariff could save a household with a heat pump £315 a year compared to using a gas boiler, Octopus claims
Fan club tariff offers cheaper power to customers living close to offshore wind turbines
Locals can expect to be offered discounted rates for solar and onshore wind energy generation
All gas supplied to customers that sign up to new 'Climate+' home energy tariff will be accompanies by carbon offsets, energy supplier announces