Solar energy is an alternative energy source that invloves harnessing the radiant light energy from the sun and converting it into electrical current. Thus, giving you freedom from high electicity charges.
With solar panels installed, you have a buffer against rising power prices.
What is SOLAR ENERGY?
Solar Energy is an alternative energy source that involves harnessing the radiant light energy emmitted by the sun and converting it into electrical current. The ability to harness and utilize solar energy has greatly increased, making it posssilbe for homes and businesses to make use of the renewable energy source rather than rely on more conventional means of generating power.
At present, the most common means of harnessing solar power is the utilization of a system involving solar panels and batteries. The panels collect the radiant light and store the captured energy in the batteries.
While energy is stored, it can also be used real time to operate various types of electrical equipment and other home appliances.
The exces is stored for use at night or in other situations where radiant light is not available for some reason.
Multi-crystalline (Polycrystalline) Solar Panels
A polycrystalline cell contains many crystals. It has similar life span to the monocrystalline cell type, but it has lower efficiency and cost per watt.
Mono-crystalline Solar Panels
A monocrystalline cell is made of a single crystal. Monocrystalline solar panels are high efficiency solar panels.
Using an inverter, the DC current produced by the PV system can be converted into alternating current (AC) to pwer mains-operated devices, like a portable television, laptop, radio or CD player. With a bigger systerm you can even power your entire home using Solar Electricity.
What about on cloudy and cold stormy day?
PV solar panels actually operate better at colder temperatures (some of the best efficiencies ever recorded were at the South Pole!). They also continue to work even in cloudy conditions, although they do produce less electricity. Under a light overcast, the panels might produce about half as much as under full sun level, ranging down to as 5-10% under dark overcast.
How do I use PV power at night or in bad weather?
When combined with a battery system, PV solar can be a reliable source of power day and night, rain or shine. PV systems with battery storage are being used all over the world to power lights, sensors, recording equipment, applicances, telephone, televisions, and even power tools.
What are the materials I need for a Solar Power System?
Major Components of a Solar Power System
How much watt solar panel we need?
Example we want to power up 5 lights of 20 Watt and we need to use these 5 lights for 3 hours every day. Here first we get a total watt usage. Ptotal = 20 * 5 = 100W. Than we multiply 100 with 3 hours. Pdaily = 100 * 3 = 300W. We are going to use 300 watt daily. Let us say we are going to have complete sunshine 6 hours each day. Now we divide 300W with 6 hours, so we will get hourly power charge that we need Phourly = 300 / 6 = 50W. So we need a 50 watt solar panel. But it is recommended to always choose a panel some bigger then we need. Because when solar panel charge the battery so it is wasting some power on charging too..
Quality of solar panels
We recommend you to buy solar panels of good qualtiy. If your really looking for panels that can be used in 20-25 years without have massive loss so we recommend you to buy quality solar panels. Because normal quality solar panels have a about 1% or less yearly loss of energy each year. So it mean if you use them 20 years so they will have a loss percent of 20%. So a 100 Watt panel will produce 20% less then what it produced when it was new. 100 watt minus 20 it is equal 80 watt. After a 20 years usage in direct sunshine a solar panel will produce 80 watt.
If a panel just begin to produce less power just after 1-2 years usage so it is not a good quality. You have just loss your money on bad panels.