According to reports, the CPWD has submitted an ambitious Rs 15 crore-project to the Union Government proposing to make these buildings energy efficient, a move that would go a long way in energy conservation and vastly reduce electricity bills.
While a portion of the Nirman Bhawan, which houses offices of Health and Urban Development Ministries, has already been solar-powered, the other buildings that might follow suit include Udyog, Yojana, Krishi, Nirvachan and Transport bhawans besides the PMO.
Nirman Bhawan, whose electricity bill amounts to nearly Rs 3.50 crore annually, has already saved Rs 3 lakh so far in the last nine months since October, 2011 after the power plant of 30 KWP (kilo watt peak hours) costing Rs 50 lakh was installed.
Explaining the operation of the plant at the Nirman Bhawan, Prabhakar Singh, Chief Engineer (E), New Delhi area, CPWD told The Pioneer: “The advantage of this system is that it does not require battery bank to store energy generated through PV Panel. Whatever energy is generated through PV panel is fed to local grid and hence, the electrical demand of the building is partly met through the solar energy source.”
He maintained that the solar plant has assured power generation of 44410 units/year while till now 137 KWH power has been generated per day.
“We have submitted a proposal for approval to the Government of Rs 15 crore to install the power plants. These will generate a total 761 KWP energy to be utilised by the offices in these establishments,” Ujjwal Kumar, superintendent engineer, CPWD added.
As per the proposal, solar PV system of 30 KWP, 80 KWP and 70 KWP has been proposed to be installed at the rooftops of the Udhyog Bhawan, Yojna Bhawan and Shram Shakti Bhawan. All these buildings have grid system.
Plans are also afoot to set up two solar PV systems of 10 KWP each at PM Office at South Block, North Block and RCR Complex, Kumar said, adding that once it gets the nod steps will be taken to get 30 per cent capital subsidy offered by the Ministry of New and Renewable Energy.
Special DG, CPWD, Rakesh Mishra said that making the buildings solar-powered is part of the Government’s plans under the National Solar Mission. Besides slashing the electricity bill, it would also ensure monetary benefits on account of carbon credit which would be reflected in years to come. “Once the proposal is approved we would replicate the plan across Delhi and then the entire country,” he added.