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Inverters - learn more

The inverter is the heart of the system. Unless you live in your car or on a farm using car batteries, you will definitely require an inverter. There are 2 types of currents, DC (Direct Current) and AC (Alternating Current). The modern home is equipped with AC and you cannot plug a house appliance into DC current (and vice versa), it will either NOT work and worse, you'll damage something. Without the inverter, you won't be able to convert one to the other, which is essential to any solar / power backup system. Let's start with the single most important word / concept associated with inverters:

  • W (Watts) or kW (kilowatts) - This is the unit for output power. Think of it as the maximum load that the inverter can power up. A typical system for a small-medium home is 3KW-5KW (1KW = 1000W). You may remember donkey-years ago buying light-bulbs that becomes really hot to touch? They were 30W for bedside lamps, 60W, 100W for brighter needs. Nowadays with energy saving LED bulbs, they are only 3W, 6W or 8W. A laptop is around 70W, a LED TV is 75W, WiFi & Modem  20W and a phone charger 10W. If you have everything plugged in and switched on, the total W (Watts) shouldn't be over the maximum output of your inverter.
  • I'm sure you're already thinking "hey, 3KW (3000W) should be more than enough for me". Well, think twice, a kettle is 2000W, a stove is 2000W, a PC & monitor is 400W, and a fridge around 250W.

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