ANNOUNCEMENTS
The solar power expansion of India is driven by utility scale projects and this now dominates the nation’s solar portfolio. While these installations have accelerated capacity growth, they face persistent challenges such as land acquisition challenges, transmission constraints and curtailment risks due to their distance from demand centers. Rooftop solar, particularly integrated with battery energy storage systems (BESS), offers a decentralized option that can improve energy access and reduce stress on grid. However, adoption has been limited by fragmented policies, lack of financial incentives and absence of time-based pricing indicators.
This study intends to assess the techno-economic viability of optimal household-level dispatch under Time-of-Use (ToU) tariffs and create a strategic framework for the faster implementation of rooftop solar + BESS in India. The study blends modeling based on actual demand and solar generation profiles from Pune with worldwide policy analysis, especially from the United States. In order to simulate cost-optimal energy use and evaluate financial indicators like payback duration, and lifespan savings, a dispatch optimization model was created using Python that takes into account battery specifications and ToU pricing structures.
The top ten states by installed solar capacity and the top five community solar states—identified using a custom scoring matrix—were examined to identify best practices in incentives, permitting, interconnection, and market design in order to reinforce the policy dimension. A strategy framework adapted to the Indian environment was informed by these findings as well as facts unique to India.
The results show that precise system sizing, well-crafted ToU tariffs and focused incentives can greatly enhance consumer economics. In order to boost rooftop solar + BESS deployment in Indian cities, the report highlights the importance of DISCOMs, regulatory reform, and simplified interconnection.
Keywords: Rooftop Solar, Battery Energy Storage, Time-of-Use Tariff, Distributed Energy, Strategic Framework.
