Clark Gellings

Electric Power Research Institute | EPRI · Corporate Office

Enhanced collaboration between regulators, utilities, and consumers would enable a participative framework wherein the existing regulatory model could be used to expand product and service offerings of utilities. The consumers win by having easier access to new technology, greatly increased choice, increased customer service, enhanced reliability,...

The concept of demand-side management (DSM) was invented in the late 1970s along with the development of many of the frameworks in use to plan and implement it in the years immediately following. It was originally referred to as demand-side load management. It is generally defined as the planning and implementation of those activities designed to i...

The smart grid, or grid modernization, integrates new interoperable and secure sensing, control, communications, information technologies and power technologies to increase the system efficiency, reliability, resilience, and sustainability of our electric grid. This chapter provides an overview of the key benefits and characteristics of smart grids...

America sharply redefined its non-transportation energy supply systems during three historical periods. Each period has changed not only how we provide energy but how we use it, with those forces working interactively. During each of these periods, there was a growing consumer awareness leading to the development of a fourth energy period in which...

The integrated grid leverages the optimal combination of local generation, energy storage, energy efficiency, and new uses of electricity, with central generation and utility-scale storage, in order to provide society with reliable, affordable, and sustainable electricity. It is characterized by connectivity, rules enabling interconnection, and inn...

Reports abound of homeowners and businesses unplugging from the power grid and opting instead to generate and store their own electricity. Such grid defections may make sense in places where electricity rates are sky-high or service is spotty. But for just about everywhere else, it's far more sensible to do the very opposite: interconnect regional...

Since the mid-1980s, demand-side management has been an important element of the electric utility planning approach referred to as integrated resource planning. At that time, annual demand-side management expenditures in the United States were measured in billions of dollars, energy savings were measured in billions of kWh, and peak load reductions...

As elucidated in several other chapters, the grid provides substantial value that goes beyond the delivery of electricity to consumers who produce their energy locally. This chapter asserts that implementing technologies that will modernize the grid will enhance its value to all consumers and enable higher penetration of local energy resources and...

Numerous papers and articles presented worldwide at different conferences and meetings have already covered the goals, objectives, architecture, and business plans of Smart Grid. The number of electric utilities worldwide has followed up with demonstration and deployment efforts. Our initial assumptions and expectations of Smart Grid functionality...

Technology will play a significant role in accomplishing the smart distribution networks of the future. Electric utilities will need to leverage existing monitoring and control facili ties and also find innovative ways to exploit the capabilities of these facilities and of the new technologies being added to achieve optimal distribution system perf...

Reducing Co2 Emissions—Depending on the sources of electricity production, the use of electricity can be a contributing factor to net CO2 emissions. What is less obvious is the fact that the increasing use of efficient end-use electric technologies has the potential to save energy and decrease overall CO2 emissions substantially.There are two main...

The Nation's Power Delivery Infrastructure is under stress, aging and barely able to meet society's needs. Despite having spawned the digital age the electric infrastructure is still an analog system. In fact, the electric power industry is the only industry in the western world that has not modernized itself through the use of sensors, communicati...

EPRI's Electricity Technology Roadmap describes a pathway to the future which begins with one of the most fundamental of electric functions: getting electricity from the point of generation to the point of use. Power delivery has been part of the utility industry for so long that it is hard to imagine that this process has not already been optimize...

Variable Service Subscription is a ldquoRegional Codes and Standardsrdquo type method for integrating demand-side resources into power system and market operations. This method has been initially identified in prior work by the authors. This paper details the method in comparison to other demand-side implementation methods and identifies program ex...

Retail electricity markets continue to change. These changes are driven by restructuring, the advent of competition, and increasing needs to influence the pattern and/or amount of energy use. Branding, attitude and image measurement, and understanding customer preference and behavior are paramount to electric service providers in this new world.

Worldwide, wind energy has expanded dramatically. In the U.S., renewable energy has been capturing a growing percent of new electric central generation capacity additions over the past few years. While this expansion is driven, in part, by regulation and incentives, steady improvements in technology have contributed substantially. Turbine sizes and...

This is a summary of the presentation in the panel session "Power Industry Workforce of the Future" for the 2007 IEEE PES General Meeting in Tampa, Florida.

Recruiting and training new workers have become essential skills for companies. As senior workers retire, companies must find ways to keep the essential knowledge for running the company from walking out the door.

Distributed generation technologies have emerged against bad environment and energy crisis, and they have been developed well in recent years. Lots of people have paid more and more attention to smart grid at home and abroad. This article analyzes the important role of the distributed power generation in the modern network's security and reliabilit...

The objectives of this paper are to examine the benefits of electric end-use energy efficiency as well as the potential cost to enhancing the current electric distribution system, to examine the quantifiable impact of electric end-use energy efficiency as an energy resource, to suggest critical technological advances that must be made to the curren...

The Brochure begins by describing asset management processes and how they relate to the key business drivers, which determine system and equipment performance requirements as a framework for making decisions. Operational and environmental stresses imposed on equipment, the quality with which equipment is maintained and several other factors are int...

Demand-side management holds significant potential to reduce growth in U.S. energy consumption and peak demand, and in a cost-effective manner. But significant policy interventions will be required to achieve these benefits.

The North American electric power system was developed over the last 100 years without a conscious awareness and analysis of the system-wide implications of its current evolution under the forces of deregulation, system complexity, power-market impacts, terrorism, and human error. The possibility of power delivery beyond neighboring areas was a dis...

The Electric Power Research institute (EPRI) has developed the Electricity Technology Roadmap that provides guidance on strategic technology planning for the electricity industry. This roadmap describes a global vision for electricity in the 21st century, a plan to set strategic technological priorities, and an outline of the associated technologie...

This is a summary of the presentation on the panel titled "Power Industry Workforce of the Future" at the 2006 IEEE/PES GM

This presentation outlines the EPRI (Electric Power Research Institute) R&D collaboration, fundamentals, funding and types of EPRI members. EPRI role in the technology development to commercialization cycle, involvement in innovation development and its innovation challenges are also presented. Innovation challenges include power delivery asset man...

The IntelliGrid Consoortium, a collaboration of energy, high-technology and government leaders, is being developed to standardize the power and energy delivery and the information systems that controls it. The IntelliGrid architecture will integrate intelligent equipment and data communications networks into an industry-wide distributed computing s...

This is a summary of the presentation on the panel titled "Issues and Challenges in Power Engineering Careers at the 2005 IEEE/PES GM in San Francisco, CA.

The need for the transformation of the US electricity system, which precisely balances supply and demand while delivering electromagnetic energy that propogates at nearly light speed, is discussed. The system is ingeniously engineered, is a catalyst for new technologies and new industries, and has an enormous impact on improving the quality of life...

The digital revolution of the past few decades has increased the demand for electric power with higher reliability and quality than is typically delivered via the conventional centralized power system. As modern economies move into the 21st century, this requirement for high security, quality, reliability, and availability (SQRA) of an electric pow...

Clark W. Gellings is Vice President of Power Delivery and Markets at EPRI – The Electric Power Research Institute in Palo Alto, California. He joined EPRI in 1982 as a Program Manager and has subsequently served in a broad variety of functions, including Vice President of Retail Energy and Vice President of Technology Initiatives. Prior to joining...

The electric infrastructure of the future will be integrated, self-healing, and electronically controlled to provide extraordinary resiliency and responsiveness. Transmission and distribution technologies will be designed with the flexibility to accommodate changing end-use needs. The will be fully capable of acting — in real time — on the billions...

EPRI's Electricity Technology Roadmap describes a pathway to the future that begins with one of the most fundamental of electric functions: getting electricity from the point of generation to the point of use. Power delivery has been part of the utility industry for so long that it is hard to imagine that this process has not already been optimized...

Over the last 15 years, demand-side management (DSM) in developed countries has been transformed from a start-up activity to a full-blown industry, and then down-sized to a modest activity. While DSM remains a part of some utilities' strategies to meet current and future customer needs, its image in developed countries has been tarnished and its fu...

This paper describes how EPRI initiated an ambitious program designed to ensure that high-quality digital-grade electric power can be delivered reliably to meet the needs of a digital society.

Several recent papers have introduced the concept of induced torque coefficients (ITCs). The concept of induced torque coefficients is essentially a generalization of the concept of damping and synchronizing torques to a multimachine, multimodal power system. This generalization allows the interactions between each stabilizing device and each machi...

As one consequence of restructuring, the power delivery system is being utilized in ways for which it was not designed. Under deregulation of wholesale power transactions, electricity generators are encouraged to transfer electricity outside of the original service areas in order to respond to market needs and opportunities. This can stress the tra...

Over the past 25 years, the role of electric power has grown steadily in both scope and importance. Developments in key technologies, such as electric lighting, motors, computers and telecommunications, have continuously reshaped American life and the productivity of its commercial and industrial foundation. As technology advances, electricity acco...

First Page of the Article

Americans spend $780 billion annually on non-transportation energy--only a third of which comprises traditional energy utilities` revenue. Through a confluence of emerging technologies, growing consumer awareness, and a changing regulatory framework, one is witnessing the creation of the Open Market Customer. This article defines the Open Market Cu...