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3123: Criteria for Tapping Bulk System Transmission Lines for Load Supply and Generation Connection

Transmission line taps can be a more economical way of interconnecting load and generation than construction of new switching stations or new transmission lines to existing switching stations. Recognizing that virtually any tapped connection to a transmission line will degrade the reliability of the line to some extent, the question arises as to how to identify whether or not the degree of degradation will be acceptable. This report investigates the factors that are used to evaluate the a

Dec 1, 2010

Research

3142: Survey on Practices for Integrating Battery Storage into a Power System

This report describes the main tasks undertaken by the investigators between March 24, 2021, and September 8, 2022, during the Know BESS (Battery Energy Storage System) project development. During the first year of project development, considerable efforts were undertaken to review the literature on battery storage systems and their applications at the utility-scale level. These efforts contributed to the contents of the literature review on the BESS supply chain (Item 5), which has two essent

Sep 18, 2020 - Jun 6, 2023

Research

3136: Best Practices for Compliance with NERC Standard TPL-001-004 “Transmission System Planning Performance Requirements"

Best practices are provided herein for Utilities to fulfill compliance with NERC TPL-001-4 Reliability Standard requirements. The identified best practices were derived from a wide sampling of Utilities. The NERC TPL-001 Reliability Standard was written to promote improvement in the reliability of the Bulk Electric System. This report presents the additional requirements from version 4 of the Standard and the process followed by Utilities to show compliance with TPL- 001-4, which is generally do

Jul 17, 2018 - Jul 19, 2019

PSPO

Research

3125: Dynamic Models for Electric Power Systems in Renewable Resource Integration Studies

This report studies the impact of renewable energy resource intermittency on the dynamical stability of power systems. Renewable resources in this study include solar and wind power. In order to capture the interaction between the intermittent variation in the power output of renewable resources and the controllers in the system, each simulation case runs for 1200 seconds. Furthermore, in addition to the dynamic models that are normally included in typical electromechanical simulations, slow con

Apr 1, 2012 - Jul 2, 2014

PSPO

Research

3140: Converting an AC Transmission Line to DC

The world is seeing a surge in the application of renewable energy sources (RES) such as hydro, wind, solar, and stored energy solutions. This RES penetration impacts overall grid performance due to its fluctuating nature and distance from load sources. New rights-of-way (ROWs) are highly opposed by landowners, expensive to build, and in some instances, not fully utilized due to system load flow dynamics. Transmission from RES to load centers to meet load growth is difficult within the existing

Mar 2, 2020 - Jul 22, 2020

Research

3134: Impacts on Transmission System Operations When Integrating DER

This report documents the findings of a study analyzing the “Impacts on Transmission System Operations when Integrating DER (Distributed Energy Resources)”. It is a follow-up to a prior impact analysis report in 2017 called “Impact on Distribution Operations when Integrating DER” under the CEATI project T164700-3804.The objective of this study was to identify the major impacts on transmission grid operations when integrating distributed energy resources (DER) and determin

Jun 5, 2017 - May 25, 2018

Research

3137: Maintenance Best Practices for HVDC Lines and Converter Station Equipment

This report presents a best practices guide for maintaining electrical equipment at HVDC stations. It is intended to be used by utility personnel involved in the daily operation and maintenance of the electrical equipment. As a means to both directly highlight the most important and common maintenance items, as well as record the maintenance information itself, a maintenance checklist format was used throughout this document. Adding significant value, this document also includes survey results f

Sep 20, 2018 - Jun 13, 2019

Research

3127: Wear and Tear Impacts of Renewables

As the penetration level of renewable energy resources in transmission and distribution systems rapidly increases, understanding these generation plants’ impacts on system maintenance costs (specifically the wear and tear of transmission/generation assets) is extremely important and urgently needed for proper planning and operations. This report outlines a methodology and analysis approach for estimating the additional wear and tear of transmission and generation facilities due to various

Mar 18, 2013 - Jun 26, 2016

PSPO

Research

3132: Voltage Sensitive Load Loss: Guide to Planning Studies and Mitigation Factors

This project CEATI PSPO 3132: Voltage Sensitive Load Loss: Guide to Planning Studies and Mitigation Factors is a follow up work of the previous project CEATI PSPO 3130 that EnerNex completed in the Year 2015. The primary objectives of this project are to 1) build on the existing body of work that EnerNex completed as part of CEATI PSPO 3130 by updating this report, 2) develop a simulation model with the components suitable for meaningful investigations of Fault-Induced Delayed Voltage Recovery (

Jun 8, 2017 - Sep 14, 2018

PSPO

Research

3130: Predict the Amount of Voltage Sensitive Load Lost During Contingencies

The primary objectives of this multi-phase project are to (1) better understand the mechanisms which result in losing voltage sensitive load, (2) predict the size of voltage sensitive load that would be lost during a disturbance as well as its location, (3) examine the impacts of this unintended load loss, and (4) enable subsequent studies to explore options for minimizing load loss. This report presents the results of phase 1, which focuses on a literature search and previous case studies relat

Oct 1, 2015 - Mar 7, 2016

PSPO

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