EDF Energy Launches Exclusive Sunday Saver Challenge Offering Free Electricity Every Sunday for a Month Tuesday, December 30, 2025 edfenergy sundaysaver electricitysavings smartmeter energychallenge energyefficiency carbonfootprint sustainableenergy energyuse electricityprovider EDF Energy has announced it will continue its popular ‘Sunday Saver’ challenge throughout January, giving customers the opportunity to earn free electricity for Sundays by adjusting their weekday energy use. This initiative … Read More