Go Greener Tips

I´ll show you shortly How Solar Energy Works so you see how the panels are connected to batteries, inverters and other important gear.

Solar cells, also called photovoltaic (PV) cells, allow you to work with the sun’s power to generate electricity with no noise, greenhouse gasses, fragile structures or fossil fuels. That permits you to dramatically decrease your carbon footprint and protect yourselves from annual utility rate increases.

BATTERIES

Solar PV installations goes in two ways: including battery and direct. In the case of battery systems the sun charges the battery on clear days (it´s not the direct warmth of the sun that makes a PV system efficient, it´s the intensity of the solar radiation. Normal battery systems for country homes and off-grid installations make somewhat less power (18 kilowatt hours) than the normal home power usage (20 to 30 kilowatt hours). Battery installations are however not merely fitting for off-grid solar power installations, they as well function as storage in regular grid connected houses for when the sun doesn´t shine.

To see How Solar Energy Works, you must know that it is not possible to merely push your solar installation into your homes’ wiring as the voltage output generated by your solar installation change wildly due to instable solar intensity during the day. This would blow away your house equipment since it´s very vulnerable to electricity changes. You ought to have specific gear such as batteries, inverters and transfer switches. Batteries work both as storage and as a barrier to absorb the fluctuating electricity output of the panels and shield the inverter.

In an urban area you are connected to the electricity grid (direct system) and a battery is not considered necessary (though can come in useful in case of electricity lacks for example). You will be able to use the electricity generated by the sun to power your dishwasher through the grid connection.

A battery is needed to store the power that the solar panel generates when the sun is shining and to make that energy available to your electrical devices at your house when it´s asked for (that is during nighttime and when the sun doesn´t shine). When you are not capable to give the produced electricity to the grid (which is the case for diy solar installations due to the technical requirements of your utility company), you have to use a battery-bank. That is exactly the way how solar works.

Though a PV panel provides energy when the sun is shining, there are other things next to the batteries, needed to conduct, control, convert and distribute the generated energy.

Which of these things you would need, depends on how you would work with your DIY Solar Panel. You would however certainly need an inverter that converts your stored Direct Current (DC) electricity from your batteries to alternating current (AC) that your electrical devises at home need.

INVERTERS

A bank of batteries can generally give you 12volts, 24volts, or 36volts, whilst grid electricity is normally at 240volts. The inverter changes the 24volts into 240volts needed for the house electric equipment. A ‘true sine wave’ inverter carries a harmonious stream of energy to your devices, just similar to the stream which comes from the grid. Matching the flow like it comes from the grid shields your sensitive appliances like your PC´s, a fridge or appliances that need a dimmer, or a speed control. This you need to be aware of to realize How a Solar Panel Works.

Now you understand How Solar Energy Works, are you ready to decide to decrease your electricity bill and that you will not have to pay the constantly increasing electricity rates, than you can go to the local solar contractor or build the system by yourself.

Find Out More on How Solar Energy Works and Check Our Review on the Best Manuals For a Homemade Solar System.

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