Thieves, Avoid as they will deceive you at the beginning, then will hike up the estimation rapidly every month Avoid. Worst energy supplier ever. Ecotricity started off with estimated bills which were pretty accurate. Then month after another they start hiking up the estimates. Their estimation have been increased from £18 to £348 within the period of 5 months!!! I even switched off my heater at this cold weather and I still receive ridiculous overcharged bills. Worst customer services. They will rip off your money. The online website does not work. I cannot log in despite calling them over 10 times. I will raise this to the higher authority but I thought to write here so nobody will go through a similar experience.