With a total capacity of one Mega Watt, 'India One' is the biggest project which works on 'Concentrated Solar Thermal Power technology', say officials at the plant.
Officials at the Ministry of New and Renewable Energy (MNRE) say the plant is the biggest of its type -- Solar Thermal.
The project recently earned praise by Prime Minister Narendra Modi, who hailed it as an "inspirational model" in the field of clean energy.
"The project works on concentrated solar thermal power technology which is cost-effective and has a high output.It has a relatively simple construction, modular design and aninnovative thermal storage concept which provides power round-the-clock," says Yogendra Hingane, who has been associated with the project as engineer and planning expert for over last six years.
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India One is a research project of World Renewal Spiritual Trust (WRST), a registered charitable trust/solar research centre and a sister organisation of the NGO Brahma Kumaris.
India One team consists of about 50 engineers and project support staff which include Golo Pilz, Head of Project, a German settled at Abu Road, and Jayasimha Rathod, the CEO.
While small-scale projects to harness solar energy had started at the Brahma Kumaris centre in Mount Abu and later at its Abu Road based headquarters in the early 1990s, the current project picked pace in 2010.
"The groundwork for India One began in 2006.In 2009 we had applied for permission from the government and work started in 2010. Initially, we experimented with generating power to make tea or heat water.
Around Rs 80 crore have been so far been invested in the project, he informs that 70 per cent of the cost has been funded by the government and the German collaboration.
"But, 90 per cent of the components used in the project are made in India. Except for the turbine generator, which is not made in India and has been imported from Germany, and the special reflector glass, from the US, everything is indigenous," he says.
"In PV cells one may want to store the energy and use batteries for that.The batteries these days are made of LED and however carefully maintained, it would need replacement after 4-5 years.These batteries pose threat to the environment and also increase the cost of power generation," explains Hingane.
He added that STPT uses only water to produce steam which was used to create energy and hence, poses no threat to the environment.
According to MNRE's 2016-17 annual report, India's total installed capacity has reached 310 GW with mix of Thermal (69.4 per cent), Hydro (13.9 per cent), Renewable (14.8 per cent) and Nuclear (1.9 per cent).
Projects on renewable energy assume significance because the government has upscaled the target of renewable power capacity to 175 GW which includes 100 GW from Solar power to be achieved by 2022, the MNRE report says.
India has an estimated renewable energy potential of about 900 GW from commercially exploitable sources including 750 GW solar power, assuming three per cent wasteland is made available, official data says.
While there are several renewable energy projects, some operational and many underway, which have a capacity running into several mega watts, the India-One solar plant is unique because it does not depend on the use of photovoltaic cells, explains an official at the project site.