About Solar Power

Solar power also called solar energy, solar electricity, solar panel power etc. It is unlimited source of energy that is environment friendly, free of CO₂ and no harmful emissions are released into the air when electricity is produced by solar power system.

Solar power is one the richest energy resource on earth, it can be captured and used in many ways and as a renewable energy source, and it is an important part of our clean energy future.

Solar power

Solar power and renewable solar power resources on earth

Solar panels are used to convert sun light into power. Solar panel produce the power by converting continuous flow of sunlight in to electricity and process that converts sunlight into electricity requires no fuel and has no variable cost.  So, it means solar energy is a renewable energy.

Types of solar power

There are 3 types of solar power technologies majorly used to produce electricity in past years

1. Photo-voltaic Solar Power

2. Thermal Solar Power

3. Concentrated Solar Power

Photo-voltaic Solar Power

At present, solar photo-voltaic energy is the most popular and most common technology in solar because thermal and concentrated solar technologies have some viability issues such as cost, capacity etc.

Solar PV power was invented in 1839 by Alexandre-Edmond Becquerel. Due to high cost it was not viable to produce electricity compare to other solar technologies. But after drop in the cost of solar panel in recent years, it became the most viable and cost effective solar technology.

Photovolatic solar system

Photo-voltaic solar power

Today anyone can install the solar energy for home, office and businesses, as its starts from small capacity such as 3 watt at reasonable prices. Governments are also providing incentive scheme and subsidy on solar to make it viable and cost effective. Below are the most common types of solar PV technologies.

  1. Solar Panel
    • Mono-Crystalline
    • Poly- Crystalline
  2. Solar PV System
  3. Solar Products

Thermal Solar Power

Thermal word is concerned to heat so this technology is heat dependent. Solar thermal power plants used to generate power that uses energy from the sun to heat liquids at a high temperature.

It is a technology of energy for harnessing solar energy to generate thermal energy. These systems focus the sun’s rays to a point using solar collectors so that appropriate high temperatures can be obtained.

Thermal solar power plant

Thermal solar power plant

Solar Thermal Power Applications-

1. Solar water heater

2. Thermal power plant

3. Solar cooker

5. Space heating

7. Pool heating

Concentrated Solar Power

Concentrated Solar energy plant use mirrors to concentrate the sun’s energy to run conventional steam turbines or power generating engines. The concentrated thermal energy in the CSP plant can be used for generation and storage of electricity when needed during the day.

Concentrated solar energy systems generate solar energy using mirrors or lenses to focus a large area of ​​sunlight over a small area. Conducting concentrated light into heat generates electricity, which drives a heat engine connected to an electric engine or generates a thermo chemical reaction.

Concentrated solar power

Concentrated solar power plant

How PV solar power work?

In solar PV (Solar Photovoltaic) system, solar panel uses to generate electricity and this electricity can be used to run different types of solar system and solar appliances such as solar pump, solar ac, solar lights, solar street light etc.

how does PV solar works

Working of photo-voltaic solar power

In all type of solar system – solar run your connected load and export or store the excess electricity to grid or batteries.

In solar appliance – solar panel run the specific item/product directly or through battery.

Learn more: Solar panel – Learn everything about all type of solar pv panel.

Uses of solar energy

The sun provides enough energy to meet the energy needs of the entire world, and unlike fossil fuels, it will not run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to convert it into electricity in an efficient and cost-effective way.

No fuel to burn: After solar panels are installed, operating costs are significantly lower than other forms of electricity generation. Fuel is not required, and this means that solar power can create large amounts of electricity without the uncertainty and expense of securing the fuel supply.

Solar Power- A Clean Source: After solar panels are installed, operating costs are significantly lower than other forms of electricity generation. Fuel is not required, and this means that solar power can create large amounts of electricity without the uncertainty and expense of securing the fuel supply.

Solar Power For Home

Now anyone can use solar power for home as per power consumption, back requirements and according to budget.

Small Solar Power Kits: small solar kits starts from Rs. 1000 for home.

On grid Solar Power System: This is the most beneficial type of solar power used for home with net metering (to export extra electricity to grid).

Off grid Solar Power System: This is the system with battery back up, if you have power cut problem use off grid solar system.

Hybrid Solar Power System: Hybrid is the combination of on grid and off grid solar system. If you want export facility with battery back-up go for hybrid.


Solar Power for Agriculture

Solar water pump  and solar fencing are type of solar power that can be used for agriculture purpose. Govt of india also proving up to 90% subsidy on solar water pump and solar fencing.


Solar Power For Businesses

For businesses, electricity per unit price is very high. So, the commercial solar system are most beneficial. Govt. of India also proving benefit through accelerated depreciation benefit.

Solar Power & Environment

As a renewable CO2-free power source, the environmental impact of solar energy is much lower than other power generation methods. The effect is mainly related to the production and supply of special materials and metals required for the production of solar panels. The location and water used to clean solar panels also affect the environment and we are working hard to find alternative ways to clean our solar panels.

solar environment

solar power and environment

Pros and cons of solar power


Eco-friendly World pollution is worsening. Any effort that can reduce pollution to the environment helps save the earth. Solar panels are capable of harnessing energy from the sun and converting it into electricity. Therefore, the use of solar panels is environmentally friendly. Therefore, solar energy which is harmless to the environment will be the major energy source for the future – starting today.

Technology Development – Technology is constantly advancing in the solar industry and improvements will be accelerated in the future. Innovations in quantum physics and nanotechnology may possibly increase the effectiveness of electrical inputs to solar panels and dual, or even triple, solar power systems.

Reduces Electricity Costs – Solar energy reduce your electricity cost. Your full electricity load will be run on solar that are free source of electricity.

Low maintenance cost – You only need to keep them relatively clean, so cleaning them with solar panel cleaning kit once or twice per month will do the job.

Reduce electricity bill- Since you are meeting some of your energy needs, which your solar system has generated, your energy bills will decrease. How much you save on your bill will depend on the size of the solar system and your electricity or heat usage. In addition, not only will you save on the electricity bill, there is also the possibility of receiving payment for surplus energy that you export back to the grid

Silent- Solar energy doesn’t make noise during working. Sunlight direct touch solar panels with silently and solar panel convert sunlight into electricity with no makes sound.

Renewable – Solar panels produce electricity by changing the continuous flow of energy from the sun to electricity.

CO-free – No harmful emissions are released into the air when electricity is produced by solar power systems.

Low operating costs – The photo-voltaic process that converts sunlight into electricity requires no fuel and has no variable cost.

Subsidy on Solar: get up to 90% subsidies in solar in India.



Cost – The initial cost of purchasing a solar system is quite high. This includes solar panel, inverter, battery, wiring and payment for installation. Nevertheless, solar technologies are constantly evolving, so it is safe to assume that prices will go down in the future.

Space requirement – If you want produce more electricity, the more solar panels you will need. Solar PV panels require a lot of space and some roofs are not large enough to fit the number of solar panels you want to do. If you do not have space for all the panels you wanted, you can choose to install less to meet some of your energy needs.

Whether dependent – Although solar power can still be collected during cloudy and rainy days, the efficiency of the solar system decreases. Solar panels rely on sunlight to effectively collect solar energy. Therefore, some cloudy, rainy days may have noticeable effects on the energy system. You should also keep in mind that solar energy cannot be collected during the night

Scope of Solar Power

Scope of Solar energy (power) in world grows fast. The rate of installation solar energy is in megawatts and gigawatts. Indian government also aim to achieve a target of 250 GW solar power installations by 2022.

India is currently facing huge demand of energy. India is the sixth largest importer of petroleum products and fourth largest importer of oil. India’s increasing use of renewable resources is expected to reduce its dependence on imported fossil fuels.

Economic growth, increasing prosperity, increasing urbanization and per capital energy consumption as well as the growing role of the government in the development of clean fuels have widened renewable energy production in India. There is a huge potential for solar, hydro, wind and nuclear power in India.

Solar Power FAQ

Q. What are advantages of solar power?

A. The main advantage is that it is a renewable and clean source of power. Power of solar is also scale-able. This means that it can be deployed on an industrial scale, or it can be used to build a single house. When it is used on a small scale, excess power can be stored in a battery or feed back into the power grid. Overall, the sun provides far more energy than we need. The only limitation is our ability to convert our cost into electricity in a cost-effective manner.


Q. What is power of solar?

A. A power generation method that converts energy from the sun into electricity. It uses solar panels that are often arranged on a building or concentrated in solar fields to have a reaction that can convert sunlight radiation into electricity.


Q. What is the average cost of solar Power for home?

A. Average solar panel price is Rs. 25 per watt. On grid solar system cost around Rs. 50 per watt, off grid solar system cost around Rs. 50 per watt and hybrid solar system cost around Rs. 60 per watt.


Q. What are the incentive and subsidy on solar power?

A. 30% to 90% Subsidies are available on solar. Learn more at: Subsidy on solar page.


Q. Which type of solar energy is useful for home?

A. Solar energy plants are installed depend on the situation. But on grid solar system is best for home because it has government subsidy and attached with gird. There are three types of solar system a. On grid solar system b. Off grid solar system c. Hybrid solar system


Q. How much solar power I need to power my home?

A. Generally, 5kW solar system used to run home load. If your power consumption is less you can go for 1kW Solar system, 2kW solar system or 3kW Solar system. In case of high power consumption go for 10kW solar system.


Q. Can we sell solar power to govt.?

A. Yes, if the on grid solar system is installed. The on grid system is connected to government electricity, if the solar system generates more power than the load then the remaining electricity is sold to the government.


Q. How does solar power panel work?

A. Photo-voltaic cells in the solar panel turn sunlight into direct current electricity (DC). Then, an inverter converts DC power to current power (AC), and once this process occurs, power is used, fed to the grid, or stored in batteries. For more detail visit: Types of solar system page.


Q. Is solar power panel expensive or not?

A. The cost depends on the quality and solar panel brand. Tata solar panel price is Rs. 28 per watt and other brands are less in price. Solar power is becoming more affordable every year. Solar energy is an important future generation method towards clean energy, and as the scale drops, its importance will increase.


Q. Which is the best solar power technology?

A. Photo-voltaic (PV – that convert light into electricity) technology solar power is best technology. And on grid solar system is best in all types of solar system. It converts AC (alternative current) electricity into DC (direct current) electricity. PV systems installations may be floating, ground, rooftop, and wall mounted.


Q. Which is the cheapest source of solar energy ?

A. Solar Water Heater is cheapest sources of solar energy .