It is critical for schools, as well as businesses, home owners and public buildings, to determine their load profile and the various load categories so that appropriate types of power supply systems can be used, to avoid oversized systems and so that the potential for load reduction and renewable energy can be considered all with the view to achieve acceptable return on investment, energy efficiency consulting and power management services firm Inframid MD Nick Oosthuizen says. Schools cannot take a one-size-fits-all approach to secure power and save energy. School loads are not only seasonal but also vary throughout the weeks and days. Schools should conduct an electrical audit and understand their current electrical load. It is important to know electrical demand, load content and electrical distribution architecture, which will help to identify the requirements for special supply systems and avoid fruitless expenditure.