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FREQUENTLY ASKED QUESTIONS

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How do Solar PV Systems work?
The solar panels are made up of photovoltaic (PV) cells that convert radiation from the sun into direct current (DC) electricity throughout the day. An inverter then converts this DC electricity to alternating current (AC) electricity. This conversion means the electricity can be used to meet energy demands in homes and commercial buildings. Any excess electricity beyond these energy demands may be exported to the grid. 
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How much electricity will I save with my Solar Energy Solution?

The average monthly electricity use of a household consisting of 3 persons, without a solar system, is about 658 KWH per month. At a cost of about R2.28 per unit, that amounts to R1 500 per month. You start saving on your total electricity bill right from the start. A 3.5kwp system would provide up to 70% of this energy.


Solar Energy Savings

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How much does a Solar PV System cost?
The cost of a PV system for your home or business depends on your energy goals and consumption. Energy efficiency of your appliances also plays an important role in the cost of a PV system. It is important to analyse your consumption and change or upgrade to energy efficient appliances where necessary. Winelands Solar considers each client’s needs individually. We will conduct a site inspection to determine your needs and requirements, then provide a quotation and proposal.  
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Do Solar PV Systems work when it is cloudy or raining?
The PV cells making up solar panels are most effective at generating electricity in direct sunlight. However, Solar PV Systems still work during cloudy weather. Even when the sky is overcast, indirect sunlight still reaches the PV cells to allow for electricity generation but at a reduced rate. 
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What is the difference between a UPS and a Solar PV System?
A UPS (Uninterrupted Power Supply) is a battery bank that allows you to run selected appliances during a power outage. This bank needs to be charged beforehand. A PV system utilises solar radiation to provide a daily energy supply for your home or business. This solar energy supplements your electricity supply from the grid, but it can also act as an electricity supply in the case of power outages. Installing a PV system requires adding solar panels to your roof. The PV system only works during daylight hours, but it is possible to add storage and a backup system to get the most from your Solar Energy Solution.
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How do Solar Energy Systems benefit the environment?
Using solar and other forms of renewable energy reduces reliance on fossil fuels for energy production, thus directly reducing CO2 emissions. CO2 emissions contribute to global warming and severe weather events like droughts and floods. The average household can reduce CO2 emissions by as much as 20% by installing a Solar Energy System.
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How do I export excess electricity from my Solar Energy System to my municipality?
Winelands Solar has all the administrative know-how to easily assist you with the required paperwork to export excess electricity to your municipality. Please note that not all municipalities allow you to export excess electricity. Be sure to ask us whether this option is available in your area.
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Which factors influence the cost of a Solar Energy Solution?
The following factors influence the cost of a Solar Energy Solution for your home or business:
  • Availability of roof space at your home or business
  • Amount of shaded roof space available
  • Which direction your roof faces
  • Roof incline
  • Roof material
  • The current energy usage in your home or business
Before calculating the costs of a PV system, consider other methods to improve the energy efficiency of your home or business. This will prevent overspending on a PV system that is not fit for your purpose.
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How do I finance my Solar Energy Solution?
Winelands Solar does not provide financing options, however, most commercial banks now offer loans or bond extensions to finance PV systems. We are PVGreenCard certified so you can invest in PV with confidence.
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