Renewable energy solar energy
Solar energy is one of the perfect renewable energy, especially for the country where the sun shines frequently.
renewable energy solar energy is not a new technology, but because of recent technological advances, it has become an excellent alternative to fossil-fuel electricity.
Wouldn’t it be wise to use free solar energy instead of depleting our already dwindling fossil fuel reserves?
The greenhouse effect does not increase as a reward for the use of solar energy.
The renewable solar system will not add a share of environmental pollution over a 30-year lifespan.
During the year, the sun shines between 900 and 1,200-kilowatt-hours per square meter – hard to believe in a wet and winding winter day – and is used to generate electricity using solar panels (solar) or hot water. The solar panel can be used.
Photovoltaic panels produce solar energy. Without much technical knowledge, photons transfer their energy to electrons in a silicon crystal and produce a direct current of 12 volts.
It is then passed through the inverter to make it suitable for 240 V circuits.
Panels are ideal for buildings that consume a lot of electricity in a day, such as an office, but should never be seen in isolation because the energy they produce requires excessive storage of batteries.
The average photovoltaic panel production capacity is 1.5 to 2kWp.
This is enough to save about one-fifth of your annual electricity needs at home.
However, energy production changes seasonally and has an impact on the cost of electrical installations.
At the height of summer, the maximum capacity may be able to meet all the needs of the building.
Three types of systems are available:
Monocrystalline panels represent the most efficient group of about 15% of the total energy
– the remainder is lost in the conversion process; the crystal panels are less efficient, collecting 13% of potential energy; the proportion of amorphous silicon thin-film panels is only 7%
– It can be used only in buildings with large ceiling space.
Provided that the panel is on the same slope of the ceiling and does not boast the appearance of the roof, a building permit must be issued.
However, it is worth examining the past of the local authorities in these cases.
After installation, there are no operation and maintenance costs, except occasionally cleaning, and the panel should last for 30 years.
So far, the absorption of photovoltaic panels has been low.
This is mainly because the repayment period can be very long – from 60 to 120 years – because the UK energy industry pays such a low rate for every power sold on the grid.
In other European countries, some countries require a three-fold recovery of the electricity paid, which greatly reduces the repayment time and increases the use of panels.
2. Solar thermal panel
The solar water heating system collects the radiant energy of the sun and turns it into usable heat as hot water.
Since the demand for hot water is low in offices, according to the Energy Saving Trust, its main use is in residential buildings, where it can provide almost all hot water in the summer months.
It can reduce carbon dioxide emissions from 0.4 to 0.75 tons per year, depending on fuel conversion.
– There are two systems available. Flat panels are a cheaper and less efficient alternative.
These rectangular glass panels usually work best on hot days and use a metal suction plate that comes into contact with the water pipe.
– Empty pipes are more efficient and, therefore, more expensive.
Their energy comes from the light that enters the thermal glass tube and is heated in water by being absorbed, such as black paint.
Both systems pump hot water (mixed with freezing) through heat exchangers connected to hot water tanks.
– Panels range from 0.7 square meters to 8 meters – Empty pipes usually take up less space. Most manufacturers typically suggest that the commission will provide two-thirds of the annual demand for hot water to the home.
– Flat-panel age should be between 10 and 25 years, and pipes should be empty for 20 to 35 years. Withdrawal is usually about ten years.