Earlier this year Spirit Energy installed a (supplementary) battery in my house to enhance my utilisation of solar energy. The process was quick and easy, the price competitive, and the new battery was installed quickly, once the grid permission had come through. It took less than a day to fit. The fitter, who was courteous, helpful and efficient, left things neat and tidy and also took time to describe operation of the battery, once it had been installed. He really knew his job. With the battery, power cuts are barely noticeable (eg. just a flicker from the lights). Past experience with this company has been equally good. 5 years previously they installed my PV solar generation system, then a couple of years later, my first battery. They do a good job using good quality equipment and my whole system has worked faultlessly since installation. As predicted, my power consumption reduced substantially following PV and battery installation, particularly during the summer. I have no hesitation in recommending this company; I have found it one to be relied upon.