Solar energy is a potential source of free electricity and water heating. It offers the power to enjoy electrical power in remote areas of the world. It seems to offer health and safety along with power, but does it?

Solar energy health risks are seldom mentioned. That may be partially due to the limited use of this source of energy. It may also be due to the lack of research in this area. Some have begun to study solar energy health risks, however, and if one researches long enough, a few estimates are available.

Thermal solar electricity Health Hazards

Solar energy health risks are inherent to the design and installation of most thermal energy systems. These are the systems built to heat water and air for household use.

Solar water heaters complete three basic operations before delivering hot water to your faucet or your heating unit:

1. Collect daylight and change it into heat energy.
2. Circulate liquids that transfer the heat energy to a storage unit
3. Store the hot water till you want it

The solar electricity health risks with such a system generally happen in the storage units. Some units make allowance for the growth of allergenic molds and fungi.

If correct materials are used for the storage unit these solar electricity systems present few, if any, health risks . Their advantages are that they are much safer than most ordinary fuels or nuclear power - they don’t have any emissions and don’t pollute the air.

PV Panel solar electricity Health Hazards

The solar electricity health risks related to photovoltaic ( PV ) panels happens before the panels are put into use on the customer’s home. PV panels are the panels used to gather solar power from daylight and change it into serviceable electricity.

The produce of PV panels needs the utilization of harmful materials. Silicon dioxide is mined from sand or quartzite and reduced with heat to pure silicon. Materials released during refining are the main health hazards. Many steps in forming the photovoltaic cells use noxious materials. These are sprayed on the cells, and can quickly be breathed.

It is estimated that solar energy health risks associated with producing PV panels per unit energy may be between 11 and 21 deaths per quadrillion joules of energy produced.

Solar energy health risks from PV panels are really slight once the panels are produced and installed on the purchaser’s home. This kind of solar electricity is famous for trustworthiness and low upkeep. The home owner infrequently desires to be concerned in any repairs, and so cuts solar power health risks.

Passive Solar Energy Health Risks

Passive solar power provides health and safety. A new building that maximises this technology can reduce energy costs by just about half. How?

1. Warming indoor air in a place thru vertical, slanted windows facing the sun. The windows capture maximum solar electricity from the daylight.
2. Picking up solar power in adobe or stone walls and floors, and then releasing it into the air as the temperature falls.
3. Picking up solar power in a sun space, very like a greenhouse built on the bright side of the home. This heat is sent into the home with correct ventilation.
4. Holding water in black roof tanks till required, cutting the working time of the home’s hot water heater.
5. Using clerestories rows of windows near roof tops that catch daylight and bounce it thru the building. The daylight decreases the necessity for electrical lights.

In Outline

Solar energy technologies present few, if any, health risks for the end user. Their use can reduce the health risks presented by other energy sources, providing cleaner, safer, more cost effective energy.

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Evans D. Smith

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