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PRAS: Probabilistic Resource Adequacy Suite
PRAS is a modeling suite developed by NREL that performs probabilistic resource adequacy assessments for power systems. It incorporates weather variability, generator outages, and demand uncertainty to estimate metrics such as loss of load expectation (LOLE). Users can explore how...
NLR
Apr 20, 2025
PREESAT: Puerto Rico Energy Efficiency Scenario Analysis Tool
The Puerto Rico Energy Efficiency Scenario Analysis Tool (PREESAT) developed by NREL allows policymakers and stakeholders to model the impacts of energy efficiency measures on Puerto Rico's energy consumption and economic development. Users can explore scenarios for different sect...
NLR
Mar 18, 2025
Renewable Energy Data Assessment Checklist
Developed by NREL, USAID, and partners, this spreadsheet checklist helps analysts and planners evaluate renewable energy data sets for quality, completeness, and suitability for planning purposes. It covers metadata, temporal and spatial coverage, data accuracy, and documentation....
NREL, U. NLR
Dec 31, 2025
Distribution System Infographic
Produced by Pacific Northwest National Laboratory, this infographic visually explains the major components of an electric distribution system from substations and feeder lines to transformers, switches, and customer meters. It shows how electricity is routed from the transmission ...
Initiative, M. U.S. Department of Energy
Dec 31, 2025
Hail Damage Mitigation for Solar Photovoltaic Systems
Developed by the U.S. Army and U.S. Army Corps of Engineers, the AMPeRRe computational model forecasts performance, reliability, and resilience outcomes for installation power grids and microgrids. The model incorporates factors such as generation mix, load characteristics, outage...
Program, M. U.S. Department of Energy
Dec 31, 2025
Technical Specifications for On-site Solar Photovoltaic Systems
This FEMP resource offers detailed technical specifications for the procurement and installation of on-site solar photovoltaic systems. It covers performance requirements, design standards, component quality, safety criteria, and integration with existing electrical infrastructure...
Program, M. U.S. Department of Energy
Dec 31, 2025
Integrated Distribution System Planning
Lawrence Berkeley National Laboratory's Integrated Distribution System Planning project develops frameworks and tools to help utilities plan distribution systems that accommodate high levels of distributed energy resources. The project provides research reports, case studies, and ...
Lawrence Berkeley National Laboratory
Dec 31, 2024
Solar Geospatial Data Tools
NREL offers several geospatial data tools for solar energy planning. Tools like the Solar Prospector allow users to explore solar resource layers in combination with land ownership, slope, protected areas, and infrastructure data to identify potential project sites. Users can quer...
NLR
Nov 12, 2024
Overview of Functional Technical Requirements for Intentional Islands
This document provides an overview of intentional islands, otherwise known as microgrids. The topics covered include common types of microgrid configurations, high level summaries of standards that address some aspect of microgrid implementation and interconnection, and a discussi...
Narang, D. et al NLR
Nov 30, 2022
PR-DRIFT: Puerto Rico Demand Response Impact and Forecast Tool
PR-DRIFT is an NREL-developed tool that models and forecasts the impacts of demand response programs on Puerto Rico's electric grid. It simulates how customer participation in demand response can reduce peak loads, provide ancillary services, and improve resilience. The tool helps...
NLR
Mar 11, 2025
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