On average, commercial and industrial energy storage systems cost between $320 and $480 per kilowatt-hour (system-level, installed). Medium projects (500 to 1,000 kWh): Approximately $360 to $440.
[PDF Version]
DigiKey's online conversion calculators include resistor color code, decimal to fraction, time constant, battery life, pressure, Ohm's Law, and more.
[PDF Version]