Grid integration of distributed solar photovoltaics (PV) in India: a review of technical aspects, best practices and the way forward

Distributed solar photovoltaics (PV) is expected to witness significant growth in India owing to increasing economic viability and a facilitating policy-regulatory framework in most states. Distributed Generation (DG) can provide various system benefits in terms of improved grid reliability and power quality, deferring grid investments, reduction in T&D losses, etc. However, since the distribution grid was not designed keeping in mind the potential high penetration of DG, there are valid technical concerns from utilities about power quality and the general impact of DG on the low tension (LT) grid. This study reviews global and Indian DG policies and regulations from a technical perspective, and points to the emerging challenges and potential solutions.