Is one brand of solar panel as efficient as another?

The efficiency of a solar panel depends on both the amount of sunlight they gather as well as their overall technical specifications. Tier one solar panels are very similar in energy production.

How long does it take to install a household solar system?

Installing solar panels, an inverter, and a battery can be done within one to three days.

Can solar panels be installed on a flat roof?

Solar panels will perform efficiently on a flat roof, provided they are mounted securely and installed at the optimal angle.

The optimum angle for a solar panel’s performance in Johannesburg and Cape Town, will differ, according to latitude.

How many solar panels are needed for a typical house?

An average home will require between six and twelve panels – but the exact number is dependent on the area of the home, its electricity needs and the capabilities of the inverter.

Will the system work in extreme conditions?

Heavy rainfall and hail are likely to not damage the panels, they can also operate at various temperatures; high and low – extreme cold can, however, reduce their efficiency.

What are the payment options?

• Cash – This is when you buy the system outright. The positives are that you start to get a return on investment immediately, however, it requires substantial upfront capital.

How much will a residential solar system cost?

To go fully off-grid, banking group Capitec estimates that it would cost the average household between R150,000 and R350,000 – through financing methods, this can be spread out over the course of a longer period.

Absa’s load-shedding finance calculator estimates that a household spending R2,500 per month on electricity would require over R190,000 to become fully off-grid using solar panels, an off-grid inverter, battery storage, and a backup generator.

Various different stakeholders argue over the true cost of solar. However, they have to be measured on a case by case basis. Despite this, however, the move away from Eskom is typically far more expensive than paying for traditional electricity every month.

“- BUSINESSTECH 25 April 2023”

Does solar work during load shedding?

As long as it is light, solar modules(panels) will produce power.

Grid-tied(hybrid) solar systems are most commonly used for residential & small to medium business applications in South Africa, as these are the most affordable. These systems will use power from modules(panels), batteries or grid to meet your energy needs.

How does solar power work?

Photovoltaic (PV) panels contain a semiconductor material (typically silicon-based) which converts sunlight into DC electricity. An inverter converts the DC(Direct Current) power to AC(Alternating Current) power, which can then be connected to a building’s power supply or directly to the electricity grid. AC is commonly used in everyday household, business & agriculture applications.