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NREL's PVWatts Calculator
PVWatts is an easy to use calculator from NREL that estimates the annual energy output and levelized cost of electricity for a grid connected photovoltaic system based on system size, location, array tilt, and basic performance assumptions. It uses National Solar Radiation Databas...
NLR
Dec 31, 2024
Revision of IEEE Standard 1547: New Disturbance Response Requirements
This resource summarizes the new disturbance-response requirements in the revised IEEE Std 1547, covering ride through capabilities, frequency and voltage excursion tolerances, and dynamic response expectations for distributed energy resources. It likely discusses how DER must res...
Walling, R. Walling Energy Systems Consulting, LLC
Jan 31, 2017
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
Integration of Inverter-Based Resources Into Microgrids
AVEC presentation summarizing village-scale projects integrating batteries and inverter-based resources with diesel generation and, in some cases, wind and solar. The presentation covers design approaches for diesel-off operation (grid-forming inverters, system controller integrat...
Shirazi, M.
Oct 01, 2024
Understanding Line Losses and Transformer Losses in Rural Isolated Distribution Systems
Rural, isolated power systems in the mainland U.S. and in states like Alaska and Hawaii are powered by assets like diesel generators. These rural, isolated power systems also cannot operate at the higher band of medium voltage (like 69kV). They are primarily in the 12 to 14 kV ran...
Prabakar, K. NLR
May 01, 2024
The Iowa Tribe of Kansas and Nebraska: Advancing Clean, Resilient, and Sovereign Energy
The Iowa Tribe of Kansas and Nebraska (ITKN) is a federally recognized Native American Tribe located along the Missouri River on the border of northeast Kansas and southeastern Nebraska. There are over 800 residents (Tribal citizens and non-Tribal) who live on the reservation, as ...
NLR
Nov 30, 2024
Community Microgrids: A Guide for Mayors and City Leaders Seeking Clean, Reliable and Locally Controlled Energy
This guide from Microgrid Knowledge assists mayors and city leaders in understanding, planning, and developing community microgrids. It explains microgrid concepts, benefits, ownership models, financing options, and policy considerations. The guide offers case studies, practical s...
Microgrid Knowledge
Dec 31, 2016
Community Resilience Options: A Menu for Enhancing Local Energy Resilience
This document highlights areas of potential community resilience improvements, especially those that relate to clean energy deployment for communities and municipalities. The National Renewable Energy Laboratory (NREL) defines resilience as "a system's ability to anticipate, prepa...
Kramer, A. et al NLR
Apr 30, 2023
Cybersecurity Baselines for Electric Distribution Systems and DER
Defines baseline controls electric distribution utilities and DER operators should adopt and provides interim guidance for asset scoping and prioritization. Intended as a common starting point for regulators and utilities to align risk management programs.
U.S. Department of Energy, N.
Jan 31, 2024
Optimal Planning of Nuclear-Renewable Micro-Hybrid Energy System by Particle Swarm Optimization
To minimize the anticipated shocks to economic, environmental, and social systems for
developing and least developed countries, the reduction of Greenhouse Gas (GHG) emissions is mandatory to a large extend. The nuclear-renewable integrated system is proficient in optimal energy d...
Gabbar, H. et al Ontario Tech University
Oct 13, 2020
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