Method for optimising tariff choice on electrical installations, comprises measurement of apparent power and energy consumption, calculation of annual costs for applicable tariffs and tariff choice

摘要

In an initial stage (E1) the apparent power in kVA is measured and used to determine a range of applicable tariffs. During a second stage (E2) the annual energy consumption is determined and used with the apparent power in a third stage (E3) to find the total annual cost allowing for the percentages of energy consumption chargeable at different rates. After obtaining a new contract (E4) operational adjustments (E5) may be made