Coolworld Waalwijk, a cooling machines rental service experiences marginal growth due to the rise of cooling systems for temporarily use. Their testing facility is heavily occupied for testing systems up to 800 kW. Besides the willingness to more sustainable practices, the urge rises for implementation of new energy solutions to their 500 MWh annual consumption for both heat and electrical demand. Currently, investments in solar-generated energy have become cheaper than fossil fuel alternatives and the rise of newly developed technology such as PVT panels is ever-increasing. This is especially relevant when considering the PV energy generation losses that occur when exposed to high temperatures. This is where Coolworld comes in. In seeking a sustainable alternative energy resource, their residual cold could actively cool solar panels, enhancing their performance. This master's thesis aims to gain insight into the energy-intensive processes and losses at Coolworld Waalwijk's testing facility and to identify sustainable solutions. With the outcome, an Energy Management Strategy (EMS) will be created, Additionally, it includes an analysis of a PV/Thermal system, with Coolworld as a case study.