Data Energy are proud to exhibit iKnoWatt, the perfect heat solution for Social Housing & the Private Rental Sector. iKnoWatt is a Pay As You Go (PAYG) prepayment system designed to work with District & Community Heating Systems. The solution was driven by the need to develop a cost effective & convenient approach to help those who use a PAYG system enjoy a trouble free life, without the pitfalls of the traditional credit system. Easy to use, fully cloud based & totally resilient, you are in charge. No paper, no bad debt, no estimated bills.