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2. Tesla Powerwall - Wikipedia

   en.wikipedia.org/wiki/Tesla_Powerwall

   The Powerwall 1 battery uses nickel-manganese-cobalt chemistry [31] and can be cycled 5,000 times before warranty expiration. [ 31 ] [ 32 ] The Powerwall has a 92.5% round-trip efficiency when charged or discharged by a 400–450 V system at 2 kW with a temperature of 77 °F (25 °C) when the product is brand new. [ 14 ]

3. Solar panel - Wikipedia

   en.wikipedia.org/wiki/Solar_panel

   A photovoltaic system typically includes an array of photovoltaic modules, an inverter, a battery pack for energy storage, a charge controller, interconnection wiring, circuit breakers, fuses, disconnect switches, voltage meters, and optionally a solar tracking mechanism. Equipment is carefully selected to optimize energy output and storage ...

4. Photovoltaic system - Wikipedia

   en.wikipedia.org/wiki/Photovoltaic_system

   A photovoltaic system, also called a PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics.It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to convert the output from direct to alternating current, as well as mounting, cabling, and ...

5. Engine–generator - Wikipedia

   en.wikipedia.org/wiki/Engine–generator

   This is a 100 kVA set. The mid-size stationary engine–generator pictured here is a 100 kVA set which produces 415 V at around 110 A. It is powered by a 6.7-liter turbocharged Perkins Phaser 1000 Series engine, and consumes approximately 27 liters of fuel an hour, on a 400-liter tank.

6. Vehicle-to-grid - Wikipedia

   en.wikipedia.org/wiki/Vehicle-to-grid

   Efficiency depends on factors like charge rate, charge state, battery state of health, and temperature. [34] [35] Most energy losses are from system components other than the battery, particularly power electronics such as inverters. [36] One study found round-trip efficiency for V2G systems in the range of 53% to 62%. [37]

7. Charging station - Wikipedia

   en.wikipedia.org/wiki/Charging_station

   Tesla showed that a battery swap with the Model S took just over 90 seconds. [106] [114] Elon Musk said the service would be offered at around US$60 to US$80 at June 2013 prices. The vehicle purchase included one battery pack. After a swap, the owner could later return and receive their battery pack fully charged.