40,323 research outputs found
Final report: Workshop on: Integrating electric mobility systems with the grid infrastructure
EXECUTIVE SUMMARY:
This document is a report on the workshop entitled “Integrating Electric Mobility
Systems with the Grid Infrastructure” which was held at Boston University on November 6-7
with the sponsorship of the Sloan Foundation. Its objective was to bring together researchers
and technical leaders from academia, industry, and government in order to set a short and longterm research agenda regarding the future of mobility and the ability of electric utilities to meet
the needs of a highway transportation system powered primarily by electricity. The report is a
summary of their insights based on workshop presentations and discussions. The list of
participants and detailed Workshop program are provided in Appendices 1 and 2.
Public and private decisions made in the coming decade will direct profound changes in
the way people and goods are moved and the ability of clean energy sources – primarily
delivered in the form of electricity – to power these new systems. Decisions need to be made
quickly because of rapid advances in technology, and the growing recognition that meeting
climate goals requires rapid and dramatic action. The blunt fact is, however, that the pace of
innovation, and the range of business models that can be built around these innovations, has
grown at a rate that has outstripped our ability to clearly understand the choices that must be
made or estimate the consequences of these choices. The group of people assembled for this
Workshop are uniquely qualified to understand the options that are opening both in the future of
mobility and the ability of electric utilities to meet the needs of a highway transportation system
powered primarily by electricity. They were asked both to explain what is known about the
choices we face and to define the research issues most urgently needed to help public and
private decision-makers choose wisely. This report is a summary of their insights based on
workshop presentations and discussions.
New communication and data analysis tools have profoundly changed the definition of
what is technologically possible. Cell phones have put powerful computers, communication
devices, and position locators into the pockets and purses of most Americans making it possible
for Uber, Lyft and other Transportation Network Companies to deliver on-demand mobility
services. But these technologies, as well as technologies for pricing access to congested
roads, also open many other possibilities for shared mobility services – both public and private –
that could cut costs and travel time by reducing congestion. Options would be greatly expanded
if fully autonomous vehicles become available. These new business models would also affect
options for charging electric vehicles. It is unclear, however, how to optimize charging
(minimizing congestion on the electric grid) without increasing congestion on the roads or
creating significant problems for the power system that supports such charging capacity.
With so much in flux, many uncertainties cloud our vision of the future. The way new
mobility services will reshape the number, length of trips, and the choice of electric vehicle
charging systems and constraints on charging, and many other important behavioral issues are
critical to this future but remain largely unknown. The challenge at hand is to define plausible
future structures of electric grids and mobility systems, and anticipate the direct and indirect
impacts of the changes involved. These insights can provide tools essential for effective private ... [TRUNCATED]Workshop funded by the Alfred P. Sloan Foundatio
Power Cost Equalization Funding Formula Review
The purpose of this study is to examine the current Power Cost Equalization (PCE) program formula’s impacts on incentives for implementation of energy efficiency and renewable energy measures. In addition, it examines if alternative formula structures might improve market signals that are more conducive to investment in energy efficiency and renewable energy in rural Alaska. As part of the analysis we also present information on the history of the PCE program and levels and patterns of electricity consumption across regions of Alaska.
Alaska has large regional and intra-regional differences in energy consumption and prices that result from a number of factors including proximity to different types and quantities of resources, community population, remoteness, and transportation costs. Most communities in rural Alaska depend on volatile and high priced fossil fuels for the generation of electricity, space heating and transportation.
The Alaska statewide weighted average residential rate for electricity (17.6 cents per kWh in CY2011) is substantially higher than the U.S. average of 11.8 cents per kWh (U.S. EIA, 2012). Yet in Alaska the average residential rate per kWh is currently lower than in Hawaii (34.5 cents), New York (18.4 cents) and Connecticut (18.1 cents). Hidden in the Alaska statewide average is considerable variation with some communities paying less than the national average and some—generally those least able to afford it—paying among the highest in the country.
The Railbelt and Southeast regions have the lowest average residential electric rates (Appendix I map). North Slope residential customers also have lower average rates because of access to natural gas and North Slope Borough energy payments in addition to PCE disbursements. Most other regions have rates two to three times as high as Alaska urban rates. Some communities with hydroelectric power have notably low rates but customers are not paying the full, true cost of power because the cost of construction was heavily subsidized by state and federal governments. In Table 3 (p. 20) we present average annual residential electricity consumption and rates for different regions of Alaska.National Renewable Energy LaboratoryTable of Figures and Tables / Executive Summary / Introduction / Power Cost Equalization History / Electricity Rates and Levels of Consumption / How the current Power Cost Equalization funding formula works / Analysis / Policy considerations / References / Appendix A. PCE funding levels per year / Appendix B. PCE appropriations and disbursements over time / Appendix C. Residential and effective rates of PCE communities, 2001-2010 / Appendix D. Effective residential rates and consumption of electricity in PCE communities, 2008-2010 / Appendix F. PCE communities characteristics of importance as factors of electricity production and demand / Appendix G. Monthly Customer Payments under Current PCE Formula and Seasonal Fixed Payment Formula / Appendix H. Data sources and methods / Appendix I. Map of Alaska Energy Region
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Net solar generation potential from urban rooftops in Los Angeles
Rooftops provide accessible locations for solar energy installations. While rooftop solar arrays can offset in-building electricity needs, they may also stress electric grid operations. Here we present an analysis of net electricity generation potential from distributed rooftop solar in Los Angeles. We integrate spatial and temporal data for property-level electricity demands, rooftop solar generation potential, and grid capacity constraints to estimate the potential for solar to meet on-site demands and supply net exports to the electric grid. In the study area with 1.2 million parcels, rooftop solar could meet 7200 Gigawatt Hours (GWh) of on-site building demands (~29% of demand). Overall potential net generation is negative, meaning buildings use more electricity than they can produce. Yet, cumulative net export potential from solar to grid circuits is 16,400 GWh. Current policies that regulate solar array interconnection to the grid result in unutilized solar power output of 1700 MW. Lower-income and at-risk communities in LA have greater potential for exporting net solar generation to the grid. This potential should be recognized through investments and policy innovations. The method demonstrates the need for considering time-dependent calculations of net solar potential and offers a template for distributed renewable energy planning in cities
New Opportunities for Solar Through Grid Modernization
Lawmakers and utility regulators in California and New York have been extensively engaged in efforts to modernize the electric distribution grid. This paper draws on the experience of Solar Energy Industries Association (SEIA) staff in each jurisdiction and explains how these efforts are creating new opportunities for solar power. The paper describes the policy and political landscape in each state and summarizes the ways in which regulators are currently addressing grid modernization. We identify common elements of these efforts, which include: 1) updating utility system planning; 2) identifying alternatives to traditional utility investments; 3) establishing robust cost benefit frameworks; 4) modifying compensation frameworks to drive investments in distributed energy resources (DER), and 5) making utility investments in technologies that bring new functionality to the grid itself. Future papers will drill down into the details of these issues and discuss the pace of change, whether grid modernization efforts are bearing fruit, and obstacles to implementation
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CleanTX Analysis on the Smart Grid
The utility industry in the United States has an opportunity to revolutionize its electric grid system by utilizing emerging software, hardware and wireless technologies and renewable energy sources. As electricity generation in the U.S. increases by over 30% from today’s generation of 4,100 Terawatt hours per year to a production of 5,400 Terawatt hours per year by 2030, a new type of grid is necessary to ensure reliable and quality power. The projected U.S. population increase and economic growth will require a grid that can transmit and distribute significantly more power than it does today. Known as a Smart Grid, this system enables two- way transmission of electrons and information to create a demand-response system that will optimize electricity delivery to consumers. This paper outlines the issues with the current grid infrastructure, discusses the economic advantages of the Smart Grid for both consumers and utilities, and examines the emerging technologies that will enable cleaner, more efficient and cost- effective power transmission and consumption.IC2 Institut
Optimizing the Structure and Scale of Urban Water Infrastructure: Integrating Distributed Systems
Large-scale, centralized water infrastructure has provided clean drinking water, wastewater treatment, stormwater management and flood protection for U.S. cities and towns for many decades, protecting public health, safety and environmental quality. To accommodate increasing demands driven by population growth and industrial needs, municipalities and utilities have typically expanded centralized water systems with longer distribution and collection networks. This approach achieves financial and institutional economies of scale and allows for centralized management. It comes with tradeoffs, however, including higher energy demands for longdistance transport; extensive maintenance needs; and disruption of the hydrologic cycle, including the large-scale transfer of freshwater resources to estuarine and saline environments.While smaller-scale distributed water infrastructure has been available for quite some time, it has yet to be widely adopted in urban areas of the United States. However, interest in rethinking how to best meet our water and sanitation needs has been building. Recent technological developments and concerns about sustainability and community resilience have prompted experts to view distributed systems as complementary to centralized infrastructure, and in some situations the preferred alternative.In March 2014, the Johnson Foundation at Wingspread partnered with the Water Environment Federation and the Patel College of Global Sustainability at the University of South Florida to convene a diverse group of experts to examine the potential for distributed water infrastructure systems to be integrated with or substituted for more traditional water infrastructure, with a focus on right-sizing the structure and scale of systems and services to optimize water, energy and sanitation management while achieving long-term sustainability and resilience
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Challenges to the Integration of Renewable Resources at High System Penetration
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Smart Asset Management for Electric Utilities: Big Data and Future
This paper discusses about future challenges in terms of big data and new
technologies. Utilities have been collecting data in large amounts but they are
hardly utilized because they are huge in amount and also there is uncertainty
associated with it. Condition monitoring of assets collects large amounts of
data during daily operations. The question arises "How to extract information
from large chunk of data?" The concept of "rich data and poor information" is
being challenged by big data analytics with advent of machine learning
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In this paper, challenges are answered by pathways and guidelines to make the
current asset management practices smarter for the future.Comment: 13 pages, 3 figures, Proceedings of 12th World Congress on
Engineering Asset Management (WCEAM) 201
Ready To Roll: Southeastern Pennsylvania's Regional Electric Vehicle Action Plan
On-road internal combustion engine (ICE) vehicles are responsible for nearly one-third of energy use and one-quarter of greenhouse gas (GHG) emissions in southeastern Pennsylvania.1 Electric vehicles (EVs), including plug-in hybrid electric vehicles (PHEVs) and all-electric vehicles (AEVs), present an opportunity to serve a significant portion of the region's mobility needs while simultaneously reducing energy use, petroleum dependence, fueling costs, and GHG emissions. As a national leader in EV readiness, the region can serve as an example for other efforts around the country."Ready to Roll! Southeastern Pennsylvania's Regional EV Action Plan (Ready to Roll!)" is a comprehensive, regionally coordinated approach to introducing EVs and electric vehicle supply equipment (EVSE) into the five counties of southeastern Pennsylvania (Bucks, Chester, Delaware, Montgomery, and Philadelphia). This plan is the product of a partnership between the Delaware Valley Regional Planning Commission (DVRPC), the City of Philadelphia, PECO Energy Company (PECO; the region's electricity provider), and Greater Philadelphia Clean Cities (GPCC). Additionally, ICF International provided assistance to DVRPC with the preparation of this plan. The plan incorporates feedback from key regional stakeholders, national best practices, and research to assess the southeastern Pennsylvania EV market, identify current market barriers, and develop strategies to facilitate vehicle and infrastructure deployment
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