New Delhi Nearly half of the 1,000-Mw capacity addition envisaged under the first phase of the national solar mission is likely to miss the commissioning schedule, with technical and equipment availability issues hampering progress in project execution.

Developers are required to commission these projects by May next as per the terms of the power purchase agreement (PPA). In case of default on PPA, they would be liable to pay penalty. Apprehensive that they could fail to meet the committed schedule on power supply, developers have approached the nodal ministry for extension.