A solar power system large enough to take a typical South African home 100% off-grid costs between R143,000 and R381,000 in July 2024, substantially cheaper than at the start of the year.
Solar power installers have seen a plunge in demand for their products and services due to a significant reduction in load-shedding in the first half of 2024.
However, Eskom’s plans for future electricity tariffs could reinvigorate the industry with households seeking to cut themselves off from the grid completely and avoid higher fixed charges just for having a connection.
Multiple solar power system installers have previously told MyBroadband that going fully off-grid is substantially more expensive than getting a grid-tied system that can meet over 90% of a home’s needs.
The reason for this is fairly straightforward — a fully off-grid system cannot tap into the grid during prolonged periods with little solar generation — like a week of cloudy weather.
MyBroadband used Solar Advice’s configurator to determine the cost of a truly off-grid solar power system for households with varying usage levels.
For the maximum inverter output, we used 10kW for smaller households and 15kW for larger homes.
This would be more than suitable for running even the most power-demanding appliances in most instances.
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