For engineers and facility managers
From 12 months of maximum demand, recommend an NMD with headroom, estimate the capacity-charge saving and flag the risk of exceedance charges.
Size a capacitor bank from kW and power factor, and see the kVA reduction, demand-charge saving and payback.
From kWh by time-of-use period and the maximum demand, find the load factor, peak share, all-in cost per kWh and the value of shifting load out of peak.
Estimate generation for a South African city from typical specific yields, then split it into self-consumed and exported energy and value both.
Size the inverter kW and battery kWh needed to hold demand below a target, with cycles, expected life and a rough value of the demand saving.
Apply the affinity laws to a pump or fan duty profile and compare a variable-speed drive with throttling or bypass control: kWh, rand and payback.
For finance, commercial and investment people: Turn an energy project into the numbers a credit committee, CFO or investor asks for: a business case for several measures together, project and equity returns, levelised cost, own versus PPA versus lease, debt capacity, and what a kWh saved is worth. Financial and commercial tools