NEW DELHI: Tata Power, through its wholly owned subsidiary, Tata Power Renewable Energy Limited (TPREL) would develop one of its largest photovoltaic based solar power plants with an installed capacity of 28.8 mw in the Satara district in Maharashtra Tata Power (Distribution), the distribution arm of Tata Power, has signed a power purchase agreement (PPA) for a term of twenty-five years in order to purchase power from this solar plant , thereby meeting its solar renewable purchase obligations (RPO).The power generated will be evacuated through Maharashtra State Electricity Transmission Limited (MSETCL)’s network. The company intends to commission the entire project capacity by December 2013.Tata Power group currently has a portfolio of 30+ mw of solar power. It commissioned 25 mw solar photovoltaic (PV) power project at Mithapur, Gujarat and 3 mw at Mulshi, Maharashtra. Its subsidiary Tata Power Delhi Distribution Ltd has also commissioned a 1 mwgrid-connected roof top solar plant in Delhi. A 60.48 KWP solar power plant has been functional on top of one of the building at its office in Carnac Bunder, Mumbai. The company proposes to add 50 mw of solar power capacity every year.