Stationary steam engines drive DC generators by means of leather belts. Source . In today’s solar photovoltaic systems, direct current power coming from solar panels is converted to alternating current power, making it compatible with a building’s electrical distribution. Because many modern devices operate internally on direct current (DC), alternating current (AC) electricity is then converted back to DC electricity by the adapter of each device. This double energy conversion, which generates up to 30% of energy losses, can be eliminated if the building’s electrical distribution is converted to DC. Directly coupling DC power sources with DC loads can result in a significantly cheaper and more sustainable solar system. However, some important conditions need to be met in order to achieve this goal. Electricity can be produced and distributed using alternating current or direct current. In the case of AC electricity, the current […]