With the increase in the use of solar energy as one of the prime sources available for power generation in India, the scope for the installation of rooftop solar panels has increased multi-fold. More and more commercial, as well as, residential buildings, are being installed with rooftop power plants to meet power requirements with the aim of becoming self-reliant in the coming future. Converting to solar power is not only saving the environment but also reducing per unit cost of electricity consumed, consequently saving into the monthly electricity bill. The best part of adopting clean and environment friendly energy is unparalleled rebate, subsidies, and incentives provided by the Government of India. There are several factors that matter the most prior to installing rooftop solar plant and here are some of the tips that would help in adopting solar energy as a power generation source. States like Haryana, Delhi, and Rajasthan have seen exponential growth in terms of installation of solar plants on the rooftop of commercial and residential buildings. Specifically, solar power in Gurgaon is a new trend among the masses with the aim of choosing a clean and affordable source of energy to meet power demands. If the scope of solar power plant installation in Gurgaon is taken into consideration, the open space constraint for the installation of numerous solar panels is a major hindrance. Therefore, solar companies in Faridabad and Gurgaon are looking for the scope of installing rooftop solar panels to meet the power requirements at an affordable price. Solar systems for homes in Gurugram have picked up pace very recently and the State Government is aiming to make Gurgaon a solar city of the state.


Step 1 Electricity Requirement
First and the foremost activity involved in installing solar panels is to figure out the total load requirement of all equipment at home. The capacity of the solar panel to be installed comes with different size type and based upon the requirement, the specific size of solar panels.


Step 2 Directions of Solar Panels
During the installation of Solar Panels, it is ensured that panels should be facing in the south direction if the location of the site is located in the Northern Hemisphere of the earth and vice versa.


Step 3 Angle of Installation of Solar Panel
The tilt angle of the solar panel from the horizontal should be decided depending upon the latitude of the location in the world. The zone wise distribution of the states in India and the corresponding tilt angle to be provided to the solar panels are given below.
• Zone 1 – Jammu & Kashmir, Uttarakhand, Punjab, and Himachal Pradesh > Tilt angle – 30-36°
• Zone 2 – Delhi, Rajasthan, Haryana, Bihar, Uttar Pradesh, and the North Eastern States > Tilt Angle – 24-30°

• Zone 3 – Gujarat, Madhya Pradesh, Jharkhand, West Bengal, Orissa, Chhattisgarh, and Maharashtra > Tilt angle – 18-24°

• Zone 4 – Karnataka, Andhra Pradesh, Telangana, Tamil Nadu, and Kerala > Tilt Angle – 12-18°


Step 4 Mounting of Solar Panels
The corresponding horizontal distance between the two pedestals of the solar panel of given wattage is as shown below
• Wattage – 100W    Pedestal Distance - 1000mm
• Wattage – 150W    Pedestal Distance - 1400mm
• Wattage – 250W    Pedestal Distance - 1600mm

PCC (Plain Concrete Centre) foundation for the pedestals of solar panels should be (30mmx30mmx30mm). The ratio of PCC foundation is generally 1:2:4 of Cement: Sand: Aggregate


Step 5 Solar Panel Connections in Series and Parallel
In order to make 1 kW solar panel array, the solar panels of 250w/24V are to be installed in series connection to each other. As the solar panels are connected to a series connection, the wattage gets added up. Whereas to make a parallel connection between the solar panels all the negative terminals are to be connected together and similarly all positive terminals need to be connected together.
Step 6 Rooftop Area Needed for Installing 1KW Solar Panels
The standard size of 250 W solar panel modules is usually 1.6m length and 1m width and the shop floor area for the installation of 1kW requires minimum space of 12 sq.m shadow free space.