Case Study of the Lightning Performance of a 230 kV Transmission Line
Published via IEEE Xplore
Abstract
This paper presents a statistical lightning performance study conducted for a North American 230 kV transmission line in order to investigate a shielding failure flashover that caused equipment damages. The study is performed in IEEE Flash program by using actual design and field-measured data. The investigation results are presented in terms of ...
via BusinessWire
EnerNex to Participate in the IEEE PES T&D Conference and Exposition
Company Shares Engineering and Renewable Case Study Expertise in Denver
Knoxville, Tenn., USA, March 29, 2018 -- EnerNex, a leading electric power research, engineering and consulting firm, today announced its participation in the IEEE PES T&D Conference and Exposition, one of the leading transmission and distribution trade shows in North America, taking...
Investigation of Oscillations Caused by Voltage Control from Smart PV on a Primary System
Published via IEEE Xplore
Abstract
Harmonic distortions at a point of common coupling (PCC) are caused by the harmonic sources in both supply system and customer facilities. In order to verify compliance with harmonic limits for an operating facility, it is essential to determine the contribution of a facility to the harmonic distortions measured at the PCC. Ov...
Vol-Var Control Settings for Smart PVs
Co-authored by: M. Humayun and J. Schoene
Originally published on EnergyCentral.com
Introduction
The penetration of distributed energy resources (DER), such as residential-scale Photovoltaic generation (PV), is increasing owing to their renewable nature and locations closer to electric loads. However, the high penetration of these resources render problems including excessive voltage variation and violation of...
EnerNex's Jens Schoene presented the system planning challenges utilities have to face when accommodating growing numbers of Distributed Energy Resources (DER) – in particular photovoltaics (PV) and energy storage. Results of computer simulations predict issues before they occur thereby facilitating timely mitigation measures, but it is important to be aware of model limitations that may lead to recommendations for unnecessary and expensive mitigation. The...
Company Surpasses 12 Gigawatts in Renewable Energy Projects; 500 Million Smart Meters Deployed in Grid Modernization Projects
December 21, 2016 05:30 AM Eastern Standard Time
KNOXVILLE, Tenn.--(BUSINESS WIRE)--EnerNex, an electric power research, engineering and consulting firm, announced they have surpassed 12 gigawatts (GW) on renewable energy development projects.
In working with two of the three largest wind farm owners in North America, EnerNex h...
Rated Power Output Can Affect Grid for Good or Bad
By Jens Schoene, Doug Houseman and Sean Morash, EnerNex
Distributed generation (DG), such as distribution-connected photovoltaic (PV) generation, presents a number of challenges to distribution system planning and operations. Dispersed generation sources connected to the distribution system disrupt the traditional paradigm that the substation is the sole source of power and short-circuit capacity. In add...
Guest Editorial | Progress on linchpins of microgrid uptake: Focus is on controller technology, smart inverter policy and common information models
By Kay Stefferud
Enabled by increasing amounts of Distributed Energy Resources (DER), utilities and large facilities are turning to microgrids to support the resiliency of electric service in the aftermath of increasingly frequent, extreme weather events, as well as for grid support.
Yet microgrids’ abil...
March 11, 2014 01:00 PM Eastern Daylight Time
KNOXVILLE, Tenn.--(BUSINESS WIRE)--EnerNex announced today two recent personnel additions to the firm within the power systems consulting team.
Tom Grebe joins EnerNex as a Principal Consultant and will be responsible for extending EnerNex’s already extensive power systems engineering study practice. Tom’s experience as an engineer at an electric utility and as an engineering consultant has made him an expe...
Wind Power Plants (WPPs) built today, often have total capacities on the order of several hundred mega watts. These WPPs are connected to the utility power grid via high voltage transmission systems. The point where the wind power generating facility is connected to the utility grid is called the Point of Interconnection (POI). To ensure safe and reliable operation of the power grid with the wind power plant connected, it is necessary to perform WPP studie...
