To achieve energy self sufficiency, the ZEB is powered by a broad spectrum of solar panels installed at many locations in the building. It is 100% clean renewable energy.
The generation of solar power can be broadly divided into 2 parts. Grid tied photovoltaic account for most of the solar panels and is connected to grid supply. Surplus power generated by these solar panels would first be distributed to the rest of BCA Academy before any excess is supplied back to the grid. If insufficient power is produced, then grid supply will provide for ZEB, so that user comfort and function are never compromised.
Standalone photovoltaic are not grid connected and supply power directly to specific functions in ZEB such as the visitor centre solar charging kiosk.
Photovoltaics are best known as a method for generating electric power by using solar cells to convert energy from the sun into electricity. The photovoltaic effect refers to photons of light knocking electrons into a higher state of energy to create electricity. The term photovoltaic denotes the unbiased operating mode of a photodiode in which current through the device is entirely due to the transduced light energy. Virtually all photovoltaic devices are some type of photodiode.
Solar cells produce direct current electricity from light, which can be used to power equipment or to recharge a battery. The first practical application of photovoltaics was to power orbiting satellites and other spacecraft, but today the majority of photovoltaic modules are used for grid connected power generation. In this case an inverter is required to convert the DC to AC. There is a smaller market for off grid power for remote dwellings, roadside emergency telephones, remote sensing, and cathodic protection of pipelines.
(Only silicon and thin film systems have been adopted. Non silicon or 3rd Gen PV have not been installed)