June 15, 2011. India is on track to produce 700 megawatts of solar power at a cost of $2.2 billion by December, ahead of an initial target for an ambitious plan that seeks to boost green power generation from near zero to 20 gigawatts (GW) by 2022. Under India's Solar Mission, investors bid to build solar power plants and the winning bids are determined by the electricity tariff that they accept as viable. Such has been the interest that the government has been flooded with investment pledges for the first batch of projects rolling out in December. India's 20 GW solar plan is likely to attract overall investment of about $70 billion, the government has estimates. Issued in 2009, the plan envisages India producing 1,300 megawatts (MW) by 2013, another up to 10 GW by 2017 and the rest by 2022.