Framework for Evaluating Grid Readiness for Integrating Electric Vehicles and Utility Scale Storage in India
Electric vehicles (EVs) and distributed solar are poised to grow substantially in India in the coming years following ambitious Government of India targets. The localized impact of these changes, both in terms of infrastructure investments and demand patterns, are not well understood, nor are tools for this type of analysis readily available. This paper describes the development of a framework that can analyze network readiness in terms of feeder impacts for distributed energy resources (DERs) including growing EV penetration, and the potential solutions introduced by utility-scale battery energy storage systems (BESSs). The building blocks of the feeder analysis require multiple data sets to be compiled into a usable network model. The work is driven by feeder head and distribution transformer (DT) loading data along with all the technical specifications and schematics of distribution feeders. These measured data sets are conditioned to remove any afflictions, and the cleaned load profiles are used to perform multi-year quasi-static time-series power flow analyses on detailed three-phase feeder models. EVs translated to grid-tied loads are represented with aggregated EV demand profile estimates based on possible charging scenarios in residential sector, and in workplace and/or public charging stations. Finally, BESSs are evaluated for their cost-effectiveness in the framework through an initial screening that includes the benefits of grid service applications to mitigate present and future overloading scenarios. The outcomes from this framework are expected to help utilities gauge the readiness of their distribution grid for integrating an increasing number of EVs as well as load growth during a projected multi-year time horizon, where BESSs can contribute in making the grid more reliable.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- U.S. Agency for International Development (USAID)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1669568
- Report Number(s):
- NREL/CP-5D00-73597; MainId:6996; UUID:deed81b3-5952-e911-9c1e-ac162d87dfe5; MainAdminID:17354
- Resource Relation:
- Conference: Presented at the 2nd International Conference on Large-Scale Grid Integration of Renewable Energy in India, 4-6 September 2019, New Delhi, India
- Country of Publication:
- United States
- Language:
- English
Similar Records
Distribution Systems Planning and Analysis Framework for Indian Feeders - Partnership with BSES/BRPL
Distribution Systems Planning and Analysis Framework for Indian Feeders: Preprint