PV Hot Water Heating

The PV Heater uses the direct current produced by PV modules to heat hot water in cylinders.

The PV Heater uses the direct current produced by PV modules to heat your hot water cylinder.

The revolutionary new PV Heater uses direct current produced by PV modules to heat the hot water in the cylinder. It boasts an efficiency grade of 99 % and saves electricity costs. With the PV Heater a kilowatt hour of heat costs between 8 and 10 cents – which makes heat from the PV system cheaper than from electricity or hydraulic.

1500-2500W of PV modules are sufficient for operating the PV Heater to a temperature of 80˚C. The modules can even be aligned east to west or installed on facades. Extensive connection work is not required. No inverters, tubing, or similar is required – as the direct current voltage generated is only 50 V. There is no need to get to grips with approvals or consents, as the PV Heater is completely independently of the grid – and operates even during a power failure! Energy efficiency was never so simple. Enquire today.

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A PV array generates energy which is transferred directly to the inverter, which heats an element in the hot water cylinder. Boosting other hot water heating supplies.

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Rooftop Solar: Does It Really Need the Grid? : Greentech Media

Two views on the future of the electric grid

RenewEconomy, Giles Parkinson, April 25, 2014

In Australia’s remote and distant outback, the development of micro- and mini-grids based on solar and battery storage seems a logical step to take, even an economically viable one. But the bigger question for network operators around the world is whether customers in more populated areas will eventually look to adopt similar measures.

At what point, for instance, will the ability of homeowners to buy the necessary equipment for power generation from their local home-improvement store challenge the future viability of the networks?

And at what point will it become possible for communities to pool resources and decide that it will be cheaper to look after their own electricity needs rather than stay on the grid? According to some groups, that point may not be so far away.

There are two technologies that will make this possible. The proliferation of rooftop solar is well documented, as is its continued cost decline. The second key element is battery storage.

As analysts at investment bank Bernstein noted in a recent report, the easiest way to dismiss battery storage (and, by implication, distributed solar) has been to observe that efficient, low-cost energy storage is least two years in the future — and to believe that it always will be.

But as the experience with solar PV has shown, this can change with the combination of capital, scale and motivation. Whether it be the mandated 1.3 gigawatts of energy storage in California, the 170,000 plug-in vehicles now operating in the U.S., Tesla’s planned gigawatt-scale battery plant, or the pull factor of frustrated consumers, the scale, the capital, and the motivation are now beginning to appear.

That will not only empower households and businesses (in both literal and a figurative sense), but it will also remove the ability of distribution companies and retailers to dictate terms — and tariffs — once the sun goes down.

READ MORE AT: Rooftop Solar: Does It Really Need the Grid? : Greentech Media.