Prof. (Dr) Pallavi Sharma
Professor
Amity School of Architecture & Planning
Amity University Gurugram
Due to the rapid growth of industrialisation and regular power cuts during peak periods of days, the demand for energy has increased. In Haryana, solar energy is available in good amount which can be tapped to generate electricity by means of SPV technology. Usage of "Solar Silicon Cells" is to turn solar energy into electrical energy. The produced electricity can be used at once or via battery storage systems for various applications. HAREDA has two types of Solar Power Plant Projects promotion programmes, which are:
- Off-grid Solar Power Plants: The organization consists of Mono/Multi Crystalline Solar Cells PV Module of 1 kW to 100 kW, with and without a battery bank along with Power conditioning Unit (PCU)
- Centralized Off- Grid Solar Power Plant With Led Street Lights: It consists of solar cell, battery bank, Solar Charge Controller, Inverter / Power Conditioning Unit, Street Lights, Poles, LED-based accessories and fitting. During the daytime, the solar panel converts the sun into electricity (DC), and the generated electricity is stored by the solar charge controller in a battery bank. The stored electricity would then be used for LED street lights or to power other devices such as machines, fans, lamps, etc.
The device consists of a 1 kW to 100 kW Mono / Multi Crystalline Silicon Solar Cells PV module with battery bank, Power Conditioning Unit (PCU) and LED Based Street Lights numbers (Max.7 nos. of 20 watts / KWp) with a 5-meter pole, pole-to-pole cable, fitting all accessories. The area required for Rooftop Solar PV Plant depends on the following:
- Shade-free roof area: Shade-free roof area is emphasized, as shadows influence the activity of PV plants. When a shadow falls on a panel, the percentage inevitably fires away and the entire panel has to be put back. Under no assurance can this be grasped. Tinctures can derive from:
- Neighboring structures like Hoardings, Mobile phone towers, Trees, etc
- The PV plant itself
- Panel Efficiency: The efficiency of the panel is measured regarding the region occupied by the panel. We can now infer that a solar photovoltaic rooftop system usually needs 10m2 of free shade area per kilowatt of power
Photovoltaic solar plants weigh between 30-60 kg / m2. This is advised not to be built in sheds with roofed asbestos. They don't pose a problem to concrete roofs. A metal roof may or may not carry its cargo as easily as wind load, expert advice should be chosen. In a area vulnerable to cyclones it's an significant factor.
A Solar Lantern is a 7Watt CFL battery, 12V 7AH, and electronics. It is made of metal or plastic or fiberglass, and a 100 Watt photovoltaic (PV) module. The battery is charged by electricity generated by the PV module. Solar Lantern is a portable lighting device suitable for indoor or outdoor lighting which works 3-4 hours a day.
The LED home lighting system is based on SPV technology which helps convert sunlight via solar cells into DC electricity. The generated electricity is to be stored in the batteries and can be used during night time hours to operate two LED lights. The organization consists of a module with 12W SPV, 12 Volt 20 AH and a total of 15 Lux.
A Solar Street Lighting System (SLS) is used as an exterior lighting device for street and subject country illumination. The schemes consist of an SPV module, a Luminaire, a storage battery, interconnecting wires, electronic controls, mounting pole panel, and a battery case. The luminaire is white LED based.The luminaire is positioned at an angle around a pole to achieve optimum earthly illumination. The PV module is positioned at the pole's peak at an angle facing south, so it sucks up solar radiation all day long. A battery is mounted in a box fixed to the pole. The electricity generated charges the battery during the daytime. The machine will light up in the evening and turn off at sunrise.
With the above analysis we can conclude that a lot can be achieved in terms of renewable energy in Haryana.