Voltsys designed, specified and supplied our 12kWp solar photovoltaic array. They worked through many iterations of the design with us, refining and optimising the solution to meet the particular needs and constraints of our site, with endless patience and attention to detail. We evaluated proposals from 18 other PV suppliers during the process and Voltsys were head and shoulders above the competition in terms of the depth of their knowledge, the fit of their solution and the level of customer service shown.