There are two kinds of electrical photovoltaic solar systems: off-grid and on-grid.  The off-grid system works totally independent of the regular power company feed.  It requires batteries.  The grid system incorporates your solar electrical supply directly into the power system that receives electricity from the power company grid.  Batteries are not required in the grid system.  They are used by some for a backup system in the event of emergencies.  Your own supply from your solar panels makes it possible for you to reduce your need of electricity from the power company.  You can even produce a surplus that is turned back onto the grid for which the power company credits your account.  The power company will even pay you       when your system produces a surplus.

Solar_Plant_kl

The electrical photovoltaic collection solar panel is the first of the four components necessary to collect sunlight and transform it into usable electricity in an off-grid system.  An electrical solar panel consists of individual like silicon cells that generate electricity from sunlight.  Light particles of sunlight, or photons, hitting the silicon cells produce electrical current.  The average solar panel, two feet by four and one-half feet, with at least 36 cells can at peak generate approximately 24 volts of electricity.

You calculate how much electricity will be needed from any system and match that calculation to the number of solar panels needed to produce that much electricity.  This is then matched to the number of batteries needed to store your electricity.    Usually, eight to ten solar panels with 17-19 twelve volte batteries will supply on an average 15 to 18 hundred square foot house on a continuous basis with all the most common electricity needs.  This is just an estimate, mind you, and each house will have its own unique considerations requiring more or less batteries.

Solar panel on a red roof reflecting the sun and the cloudless blue sky

There are three kinds of electrical photovoltaic solar panels: monocrystalline, polycrystalline, and amorphous.  The best, and most expensive of these, is the monocrystalline which cells are composed of pure silicon involving sophisticated crystal development.  Less efficient is the polycrystalline, which is derived from large blocks of numerous crystals.   Polycrystalline solar panels have a shattered glass appearance.

By far the least expensive and the least efficient is the amorphous solar panel not made from crystals but merely silicon spread over metal or glass.  This does not yield the same amount of electrical power as monocrystalline and polycrystalline cells.  Vastly more square footage of the amorphous solar panels is required to generate the equivalent output of monocrystalline or polycrystalline panels.  The advantage of amorphous photovoltaic cells is that they are now made into roofing shingles which mount right on the roof and replace asphalt shingles.  They thereby serve the dual purposes of protecting the house or building from the weather and providing electricity.

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How Home Automation Can Make Your Home More Efficient

Thu Aug 4 , 2016
Home automation can apply to almost any room or appliance in your home, if you have the right technology installed. It’s becoming more freely available, from comprehensive systems for your entire home, to mobile apps that control your individual kitchen appliances or heating systems. Major electronics retailers are increasing their range of items that can connect to the Internet and be controlled remotely, and home owners also have the option of choosing a home automation specialist for things ranging from home cinema installation to multi room music systems. In general these home automation systems can make your home run more efficiently in several different ways. They may save you energy, money, time or all of the above. Here are a few of the primary factors that can really make a difference: 1) Controlling your heating – The idea of controlling the temperature of your home remotely is arguably one of the things that has really driven innovation and development in this area. Now the technology has caught up to expectations, it’s very easy to install a smart thermostat that can be adjusted automatically or manually via a mobile app. This means you can adapt to unexpected changes to the weather, or when you plan to be home. If nobody is home, most systems will have a preset “Away” setting to conserve energy. Please follow and like us:
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