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Frequently Asked Questions About Solar Power

PV Solar Systems Solar Water Heating

Will I have hot water in winter? Does a solar water heating system require maintenance? Which is better – flat plate or evacuated tube systems? Will I be able to use my old geyser? What is the advantage of using a solar geyser as opposed to converting my existing geyser? What are the different types of rooftop solar PV systems? What will a solar water heating system cost? Evacuated tubes get too hot in South African conditions - is this true? Will I have hot water at night? Will I still have hot water on the days when the sun doesn’t shine? How hot does the water get with a solar water heating system? What is the cost of replacing Eskom with a PV Solar system for my house? How does evacuated tube technology work? Doesn’t the power required for the pump cancel out the electricity saved in the geyser? Will my roof be able to hold all of that weight if I do decide to put the geyser on the roof? Why should water reaching my hot water taps be less than 55 degrees? How long does an installation take? Does solar water heating generate any electricity? What is the guarantee period? What is the difference between flat plate and evacuated tube systems? How is the pump powered? Why should I purchase a PV system? What about the wind blowing the collector off the roof? What are the advantages of having the geyser on the roof? Does the geyser have to go on the roof as well? What is a PV Solar System? I want a Solar System to feed electricity back into the Eskom grid and earn money from it Why do professional Solar Companies charge for Solar System designs? How do I decide what size system to install? How long will it take for my solar water heating system to pay for itself? What is the difference between a thermosiphon system and a pumped system? My heighbour was told by a so-called "Solar Company" that they can change his entire house tp PV Solar for less than R30 000? How does Solar Water Heating work? What type of battery must I use in a standby system? Will my pumped system heat water during a power outage? What if the pitch of my roof is less than 25 degrees? Why do I need a timer switch for my solar water heating system? Which way does the collector have to face? What is the difference between a "SINEWAVE" and "SQUAREWAVE / MODIFIED SINEWAVE" inverter? How much can a solar water heating system save me? What is the life expectancy of our systems? What’s the difference between PV and other solar energy technologies? What is an Inverter? What type of battery must i use in a solar system? What pitch does the collector have to be at? How long have evacuated tubes been around? Why is it advisable to have a controller? Will the installation affect my house warranty? How do evacuated tubes compare to flat plate collectors with regards to efficiency? What is a Backup System? What is Photovoltaic or "PV" Can I install a solar water heating system if I live in an area that experiences frost?