Solar Academy

DC to AC Power Inverters

DC to AC Power Inverters

Products
A battery charger will normally draw power from a mains supply or generator, and charge a battery or bank of batteries, so too does Photovoltaic (PV) solar panels convert energy from the sun into electricity, which needs to be stored in batteries. Most electrical appliances and electronic equipment run on 230VAC power, which means in the case of a solar powered system, the power stored in the batteries needs to be converted from 12V/24V or 48V  DC to 230VAC. Many of the available DC to AC power inverters are now used and designed for cost, mobility and various applications and most of them should be of quality and system durability. You might want a power inverter system that interfaces automatically with a generator and possibly other inputs such as PV Solar Panels &…
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Evacuated Tube Solar Hot Water System- How it works.

Evacuated Tube Solar Hot Water System- How it works.

Technology
Evacuated Tube Solar Hot Water System- How it works. The solar collector includes four main components.   1.      Evacuated Tube Absorbs solar energy and converts it to usable heat. A vacuum between the two glass layers insulates against heat loss. The Heat Transfer Fin helps to transfer heat to the Heat Pipe. The silicon rubber caps at the end of the tube protect the tube and are UV resistant. 2.      Heat Pipe Copper vacuum pipe that transfers the heat from within the evacuated tube up to the manifold. 3.      Manifold Insulated box containing the copper header pipe. The header is a pair of contoured copper pipes with dry connect sockets that the heat pipes plug into. The manifold casing is made of a strong…
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Tesla’s Powerwall Home Battery: The Stuff Worth Knowing

Tesla’s Powerwall Home Battery: The Stuff Worth Knowing

Technology
  Elon Musk recently unveiled Tesla Energy and the Powerwall home battery. I'll attempt to cut through the hype and break down the basics to get you primed for your next water-cooler convo. NOTE: One of the most important things we neglected to mention in the video is that a big part of the appeal for this system is not economical, but environmental. I think the same is generally true of Tesla's cars. It may not be easier on the wallet (at least not yet) but you're powering your home with green energy instead of fossil fuels, and there's a lot to be said for that. -Brent https://youtu.be/FHswxauDGVg How much will it cost in SA? https://businesstech.co.za/news/energy/112797/how-much-the-tesla-powerwall-will-cost-in-south-africa/  
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This Is How Solar Panels (PV) Work

This Is How Solar Panels (PV) Work

Technology
Richard Komp examines how solar panels convert solar energy to electrical energy. Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? Lesson by Richard Komp, animation by Globizco. https://youtu.be/xKxrkht7CpY  
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Energy Efficiency Tax Incentive

Energy Efficiency Tax Incentive

ROI
Energy Efficiency Tax Incentive Section 12L Of The Income Tax Act Comes Into Effect Submitted on Urban Earth Website by: Kathryn Kasavel, Monday, January 27, 2014 Section 12L of the Income Tax Act - Deduction in respect of energy efficiency savings- came into effect on the 1 November 2013. This tax incentive allows taxpayers to claim deductions of 45 cents per kilowatt hour, or kilowatt hour equivalent, of energy efficiency savings made against a baseline measured at the start of each year of assessment. This opportunity to claim tax deductions applies to all measured and verified savings achieved before 2020.For example, a company that achieves energy savings of 500,000 kWh in a year, would calculate their savings by multiplying 500,000 kWh by 45c which would equal a total of R225,000…
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Radiant Floor Heating

Radiant Floor Heating

Technology
Radiant floor heating uses warm fluid (usually water) running through pipes embedded in or attached to the floor to heat space. It is a good complement to passive solar design because both systems work well with building on an insulated slab, providing mass for passive heat storage and a convenient and protected location for the pipes. The larger the radiating surface, the lower the temperature difference needed to transfer heat. This means the water does not need to be boiling hot for floor heating to work. This makes radiant floor heating a good complement to active solar water heating. A backup heat source is installed for times when solar heat has been insufficient. Typically, a gas-fired tank-type water heater, instantaneous water heater, geothermal heat pump, or boiler is used, but the…
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Solar Heating – Pool Systems

Solar Heating – Pool Systems

Technology
SolarTech ZA provides complete pool heating systems, from design, collector mounting, pipe connection to your existing pool filter, temperature control and power valve, to final startup and tuning. Solar heat can extend your swimming season by 30%, giving you better use of your pool investment. To adequately heat your pool, you need a collector array equal to at least half the pool surface area. Often the existing filter pump can circulate pool water through the collectors. Heating is controlled by a weatherproof differential temperature module via a motorised valve, and this control can also act as your pool filter timer.
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What Is Solar Heating

What Is Solar Heating

Technology
Solar heating is also commonly referred to as solar water heating, largely because it is used to heat water for washing and showering. In South Africa, which is blessed by prevalent sunshine, solar water heating can provide up to 80% of hot water energy needs and significantly reduce electricity bills since water heating accounts for up to 60% of an electricity bill.
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Solar Geysers

Solar Geysers

Products
Solar Geysers are devices that heat up your water using Solar Energy instead of using electricity. How long will it take to recoup my investment into a Solar Water Heater? This answer depends on how many people are using hot water in your home. An average family of 2 adult s and 2 children will yield a saving of plus minus R500 – R900 per month thus giving you a payback period after your rebate of just over 1 year dependent on the solution installed. Who will pay me my rebate back? SolarTech ZA will  subtract the rebate amount from your system at the onset thus allowing you to get your rebate subtracted directly from your retail pricing. The benefits of dealing with a group large enough to not only ensure…
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