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best design hybrid system with battery bank 3KW 4KW 5KW
Before selecting or purchasing any equipment required for a hybrid or stand-alone power system the installer should have a good understanding of the basics of sizing an energy storage system - The most important part of the process is establishing the load profile or building a load table to estimate the amount of energy required to be generated and stored per day. If you cannot develop a load table then a professional solar installer or system designer should be consulted. The general steps are as follows:
Estimate the loads - how much energy is required per day in kWh.
For off-grid power systems, a load table should be developed for
both summer and winter requirements. The maximum demand or peak
demand also needs to be considered when selecting the battery and
inverter/charger.
Determine the battery size required in Ah or Wh. You need to take
into account the battery type and chemistry, maximum depth of
discharge (DoD), round-trip (charging) efficiency and maximum
charge rate.
Determine how many solar panel/s are required to charge the battery
and supply the loads taking into account the local conditions such
as - average irradiance throughout the year, shading issues, panel
orientation, and temperature derating factors.
After steps 1 to 3 have been established you can now select the
appropriate Inverter/charger, solar inverter/s or Solar Charge
Controller/s to suit the system.