PES are one of the leading manufacturers and suppliers of Energy Saving systems including power savers such as Power factor correction  and voltage optimisation  equipment for industrial and commercial clients within the UK. Our approach to energy efficiency and energy reduction is at a plants source using a number of proven technologies which includes Power Factor Correction and Voltage optimisation combined which is quite unique within the UK and is proving to be a solid and cost effective route to reduce energy costs and carbon emissions in an ever increasing energy conscious environment. Power Efficient Systems are experts in Energy Saving Systems.