Is enough renewable energy produced to meet the sites energy needs?
Due to the very low energy requirements of the homes at HHP (about 10% of an average UK home) relatively small renewable energy systems were expected to be able to produce enough energy to offset the occupant’s energy use. However the wind turbines have underperformed (see previous question) and the energy use on site is higher than originally envisaged (in particular the growth of the on site business and purchase of an electric). However most of the increased use can be justified by offsetting less efficient (& non-renewable) use elsewhere, such as working off site & fossil-fuelled transport. The approximate usage breakdown per annum is: • Homes = 18’000kWhrs (originally estimated 15’000) – (see separate question addressing this) • HHP Trading office = 3,000kWhrs (this is remarkably low for an office at about 28kWhrs/m2/annum) • Electric Car = 2’000KWhrs • Other (e.g.
