The effectiveness of your installation depends on the combination of the correct number and size of panels, the storage capacity of your battery bank and the choice of inverter-mppt-controller combination.
At Powerhour Solar we believe in the importance to determine and define your required outcome before you implement an installation and here are the important steps in the process that will result in an outcome that meets your expectations.
- Start by determining your monthly electricity usage in kilowatts and break it down in an average daily consumption. You could do that by recording your meter reading over a period or by checking the reading on your monthly municipal account. Powerhour Solar can also connect a data logger to your distribution board which can record your usage over a period.
- Determine which appliances are the major contributors to your consumption, such as geysers or stoves. Keep in mind that a single geyser use at least 3kW per hour and a stove can use 1,2 to 1,5kW per hour. By installing a gas stove and or solar geyser you can reduce the size of your primary solar installation and your battery bank substantially.
- If you know now what is your required usage, then you can determine the capacity of your battery bank in kilowatts, and if you know the capacity of your battery bank, you can determine the number and size of PV Panels that will produce sufficient energy to charge the batteries whilst taken into consideration that your appliances consume solar power while you charged your batteries during the day.
- Only after that you can determine the correct type and capacity of inverter.