Non residential users pay higher tariff for higher usage.  Each kWh consumed beyond 600 kWh is charged at around GHp 126. Sizing a Solar System to offset these high-cost kWh will accelerate your payback on the system.

Such a system can be designed with the flexibility to expand its capacity in phases, once the system has paid back for itself.

The sizing of such a system is dependant on your usage and restricted by the space available for mounting of solar panels