Copyright © 2015 Clean Power Research, L.L.C Prepared by Ben Norris, Clean Power Research on behalf of Utah Clean Energy April 27, 2015 Net Metering Workgroup.

Slides:



Advertisements
Similar presentations
1 Conservation Program Cost-Effectiveness Tests Presentation to the: Florida Public Service Commission Workshop on Energy Efficiency Initiatives November.
Advertisements

Copyright © 2014 Clean Power Research, L.L.C Prepared by Clean Power Research May 7, 2014 Prepared for Arizona Corporation Commission Cost Causation and.
Sistan & Balouchestan Electric Power Distribution Company
© 2006 San Diego Gas & Electric Company. All copyright and trademark rights reserved. Microgrid – A Smart Grid Alternative Service Delivery Model? Thomas.
Dynamic Distribution Grids © 2012 San Diego Gas & Electric Company. All trademarks belong to their respective owners. All rights reserved. Neal Bartek.
Making Clean Local Energy Accessible Now 22 August 2013 Craig Lewis Executive Director Clean Coalition mobile Distributed.
Making Clean Local Energy Accessible Now Storage Bid Evaluation Protocols Role of CEP, Quantifiable Benefits Stephanie Wang Policy Director Clean Coalition.
Solar Energy Florida Electric Cooperatives Association 2014 Finance & Accounting Conference Glenn Spurlock September 17, 2014.
Copyright 2012 UC/CIEE uc-ciee.org by: Alexandra von Meier Electric Grid Research.
Challenge of Large Scale Wind Power Integration - Introduction to the Workshop Pradeep Perera Principal Energy Specialist Asian Development Bank.
1 Pacific Gas & Electric Company MTS: Evolution of the Electric Distribution System Manho Yeung, Senior Director, System Planning and Reliability PG&E.
Valuing Load Reduction in Restructured Markets Supply Cost Curve Regressions Market Price vs. Value of Load Reduction Photovoltaic Case Study William B.
Integrating Multiple Microgrids into an Active Network Management System Presented By:Colin Gault, Smarter Grid Solutions Co-Authors:Joe Schatz, Southern.
SMALL UTILITY-SCALE RESOURCES (DISTRIBUTED GENERATION) 1.
“The Electric Grid and DG: Operational Considerations”
Energy and Environmental Economics 1 Avoided Cost and E3 Calculator Workshops Energy and Environmental Economics, Inc. October 3, 2005.
The Need for an Energy Grid in the Maldives
Ensuring Reliable Electricity Supplies Using Distributed Generation Gregory Tress Carnegie Mellon University.
Compare and Contrast ELCC Methodologies Across CPUC Proceedings
Sean A. Kufel, P.E. Power System Engineering, Inc. April 20, 2015 Distributed Generation System Impact Analysis with Computer Modeling Tools IEEE Rural.
Aidan Tuohy Technical Leader/Project Manager, EPRI ERCOT Emerging Technology Working Group (ETWG) 09/24/2014 Transmission System Considerations for Integrating.
RiversidePublicUtilities.com Arts & Innovation RiversidePublicUtilities.com Challenges and Solutions for Large-Scale PV Integration on RPU’s Distribution.
Interconnection of Distributed Generation
Value and Cost of Distributed Generation ACC Staff Workshop #1 – May 7, 2014 Docket No. E-00000J DG Valuation ─ Lessons from the APS Distributed.
2015 World Forum on Energy Regulation May 25, 2015
SUSTAINABLE ENERGY REGULATION AND POLICY-MAKING FOR AFRICA Module 13 Energy Efficiency Module 13: SUPPLY-SIDE MANAGEMENT.
Costs of Ancillary Services & Congestion Management Fedor Opadchiy Deputy Chairman of the Board.
Coincident Peak Load Forecasting Methodology Prepared for June 3, 2010 Meeting with Division of Public Utilities.
Slayton Solar Project RDF Grant Award EP3-10 Presentation of the Project Results to the RDF Advisory Board January 8, Project funding provided by.
Cost of Service Indiana Industrial Energy Consumers, Inc. (INDIEC) Indiana Industrial Energy Consumers, Inc. (INDIEC) presented by Nick Phillips Brubaker.
Power Magazine Visuals © 2012 San Diego Gas & Electric Company. All trademarks belong to their respective owners. All rights reserved. June 28, 2012.
Applications and Benefits of Energy Storage Maui, Hawaii June 16, 2010 Garth P. Corey, Consultant Sandia National Laboratories Sandia is a multiprogram.
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Robust Broadcast-Communication Control of Electric Vehicle Charging Konstantin.
Distributed Generation Benefits and Planning Challenges CREPC/SPSC Resource Planners’ Forum October 3, 2012 Arne Olson.
© Energy Storage: Addressing Today’s Grid Challenges for Tomorrow’s Energy Demands Brad Roberts Power Quality Systems Director S&C Electric.
Avoided Costs of Generation
Reaching the Next Level of the State’s Environmental Policy Goals Panel: Energy Procurement, Infrastructure and Policy: Climate Challenges Beyond 2020.
Technical Conference on Net Metering Load Research Study November 5, 2014.
California SONGS\OTC Plants Assumptions TEPPC – Data Work Group Call Tuesday, September 15, 2015.
K E M A T & D C O N S U L T I N G Power System Conference, Clemson, South Carolina, March 8-11, 2005 Principles and Issues Relating to the Interconnection.
© 2015 Electric Power Research Institute, Inc. All rights reserved. Matthew Rylander EPRI April 20, 2015 Streamlined Method for Determining Distribution.
Joint Agency Workshop on the Governor’s Energy Efficiency Goals CEC IEPR Workshop on 2030 Efficiency Goals Panel Topic Codes and Existing Buildings Monday.
1 Knowing Your Customers Better Through Load Research Presented By: Lawrence M. Strawn Senior Retail Pricing Coordinator Orlando Utilities Commission September.
Overview and Status of Distributed Energy Resources Policy Docket Jay Griffin, Chief of Policy and Research Hawaii Public Utilities Commission August 4,
Southern California Edison The San Onofre Nuclear Generating Station April 14, 2011.
1 Modeling Distributed Generation Adoption using Electric Rate Feedback Loops USAEE Austin, TX – November 2012 Mark Chew, Matt Heling, Colin Kerrigan,
More Than Smart – A Distribution System Vision © 2011San Diego Gas & Electric Company. All copyright and trademark rights reserved. Dave Geier – VP Electric.
Vermont Solar Development Pathways Fifth Stakeholder Meeting December 16th, 2015 Middlebury, VT.
UM 1751 Energy Storage Workshop #3 May 9, UM 1751 Workshop #3 Topics Most viable and beneficial applications (HB 2193 time frame: ) Emerging.
Institutional Support Vladimir Koritarov Argonne National Laboratory April 2016.
Renewable Energy Innovation In Canberra Jon Sibley Director, Energy and Waste Policy Environment and Planning Directorate.
PG&E’s Distribution Resources Planning READ AND DELETE For best results with this template, use PowerPoint 2003 Planning the “Networked Grid“ Integrated.
Investigating PV Generation Induced Voltage Volatility for Customers Sharing a Distribution Service Transformer Abhineet Parchure Dominion Voltage, Inc.
Women In Energy Conference Kingston, Jamaica March 10, 2016.
Modeling DER in Transmission Planning CAISO Experience
Power Quality at Solar Distributed Generation Facilities
SEIA Perspective on Smart Inverter Functions
SOLAR PROGRAMS Presented By Benjamin H. Jordan, P.E. 4/2016.
Mike Jaske California Energy Commission
Subteam 1a Competitive Solicitations Framework Working Group Meeting
DECARBONIZATION & GRID MODERNIZATION
Opportunities in the Changing Energy System
Distribution Systems and Planning Training
DISTRIBUTED GENERATION (DG) MODELING CRITERIA SWEDE 2016
ISO New England Net Load Analysis with High Penetration Distributed PV
New England Electricity Restructuring Roundtable
Resource Adequacy Demand Forecast Coincidence Adjustments
Integrated Distribution Planning Process
2500 R Midtown Sacramento Municipal Utility District
Meeting the challenge: Electrification and Climate Change
Presentation transcript:

Copyright © 2015 Clean Power Research, L.L.C Prepared by Ben Norris, Clean Power Research on behalf of Utah Clean Energy April 27, 2015 Net Metering Workgroup Session I Docket No Prepared for Utah Department of Commerce Division of Public Utilities

2

Agenda 3  Solar characteristics in Utah  Impacts of solar in the distribution system  Differences between utility-scale and distributed solar

4 Solar Characteristics in Utah

Load Match Between Solar and System PacifiCorp East + West, Top 100 Hours Average solar output = 60% of maximum possible power* * Fixed, South-30, Salt Lake City

How to Improve Load Match Analysis  For generation coincidence, should use load data from PacifiCorp East load balancing area (not available to public)  For distribution coincidence, should use load data from RMP Utah (not available to public)  Solar modeling should be based on fleet data, rather than a single system 6

Production Profiles by Orientation (For illustration) 7

Capacity “Buckets” by Orientation (and location) (Austin Energy – used for illustration) 8 Tilt Angle Azimuth Angle

Why do Fleet Modeling? SDG&E peak day, 2012 (September 14) 9

Impact on 2012 Peak Load Day (Preliminary) PacificCorp East+West, July 12,

11 Impacts of solar in the distribution system

Hawaiian Electric Experience Hawaiian Electric has the highest DG penetration in the nation. A company filing to the state PUC on DER Policies, Jan 20, 2015, Docket No :  Proposes to raise circuit penetration threshold for transient overvoltage from 120% of “gross minimum daily load” to 250% based on inverter testing (load rejection overvoltage, “LRO”) with NREL, EPRI, and Solar City.  Proposes to monitor impacts on safety and reliability (circuit and system).  Proposes requiring advanced inverters.  Proposes to make strategic and cost-effective capital investments to upgrade circuits to support increased thresholds. Seeks collaboration with stakeholders to identify high demand / high benefit circuits.  Proposes that costs be treated as grid improvements that benefit all customers (paid by all, not just those installing DG). 12

Utah PV Penetration 13 Utah (2014) 9 – 15 ¢/kWh Utah, 10-yr forecast (2024) [A] Installed BTM Solar 14 MW175 MW [2] [B] Peak Load5,024 MW [1] 5,935 MW [3] Penetration = [A] / [B] 0.3%2.9% [1] Non-coincident Jurisdictional Peak for Utah, 2014, from PacifiCorp 2015 IRP, Table A.6. [2] PacifiCorp 2015 IRP (Utah only), developed by Navigant. [3] Assumes 10-year forecasted average coincident peak load growth rate for Utah (1.68% per year), , from PacifiCorp 2015 IRP, Table A.2. [4] Compiled by Clean Power Research (MW-DC) for PG&E, SCE and SDG&E. [5] California ISO. [6] HECO, filing to PUC 1/20/2015. [7] HECO 2013 IRP. Hawaiian Electric (Oahu, 2014) ¢/kWh 283 MW [6] 1,200 MW [7] 24% (85 x Utah) California ISO (2014) ¢/kWh 5,655 MW [4] 45,089 MW [5] 13%

Technical Interconnection Issues  Voltage fluctuations Fluctuations in voltage may be caused by cloud transients, requiring additional voltage regulation Aggregations of systems can smooth output Advanced inverters can mitigate  Circuit protection not designed for backfeed With DG, power can flow in both directions May require upgrades to protective devices and new coordination (protection designs were based on one-way flow only)  Distribution transformer sizing Output of solar may exceed the rated capacity of the existing transformer May require upgrade to accept higher power 14

Advanced Inverters Advanced inverters can: Act like variable capacitors (source or sink reactive power) - mitigate voltage swings Provide voltage and frequency ride through – improve system reliability If used, would not only mitigate PV impacts, but potentially improve stability and reliability “Advanced” inverters use old technology, but new interconnection standards. Rules do not currently allow inverters to control voltage. New standards are being developed by IEEE P1547 Working Group. Utah may wish to keep abreast of this. 15

Cost impacts  Upgrades to voltage regulation, distribution transformers, protective devices  Highly site specific Requirements are specific to circuit, location and proposed installation Some installations require significant upgrade, some require nothing (e.g., small PV system on heavily loaded circuit will not have significant impact) Depends on other DG already installed (“hot potato”) 16

17 Difference between utility-scale and distributed solar

Design Differences: Utility Scale vs DG  Orientation DG often conforms to roof slopes Commercial vs residential fleet shapes  Tracking Utility scale often designed to track the path of the sun  Aggregation Distributed systems: Are more widely dispersed (more smoothing) Are higher in redundancy (more reliability) 18

Valuation Differences: Utility Scale vs Distributed (Illustrative - categories may not apply to Utah) 19 Distributed Solar

Valuation Differences: Utility Scale vs Distributed (Illustrative - categories may not apply to Utah) 20 Utility Scale Solar

Avoiding T&D Losses with DG 21 Requires marginal (not average) analysis Constant losses (not avoided by DG) DG reduces load Losses go down

Avoided Distribution Capacity Costs Peak Load Reduction – Illustrative (not Utah loads) 22

What Costs Should Be Included in the Distribution Capacity Value Calculation?  Only capital costs  Only equipment that PV can defer/avoid (“capacity related”) 23 Example 1: SCADA Communications Gear Analysis: This equipment is needed to provide operators with real-time information about the grid. It is needed whether PV is present or not. Conclusion: Do not include this as a deferrable cost. Example 1: SCADA Communications Gear Analysis: This equipment is needed to provide operators with real-time information about the grid. It is needed whether PV is present or not. Conclusion: Do not include this as a deferrable cost. Example 2: Substation Transformer Analysis: This equipment is needed to serve all load in the area. If the load reaches the transformer capacity limit, it has to be replaced with a larger unit. DG can reduce the load on this equipment and potentially delay the investment of a new unit. Conclusion: Include this as a potentially deferrable cost (depends on load match). Example 2: Substation Transformer Analysis: This equipment is needed to serve all load in the area. If the load reaches the transformer capacity limit, it has to be replaced with a larger unit. DG can reduce the load on this equipment and potentially delay the investment of a new unit. Conclusion: Include this as a potentially deferrable cost (depends on load match).

Thank you Ben Norris

25 Appendix

26 Measured data at two high-density networks Napa, CA 4 km x 4 km 400 MW 10 seconds 11/19/10 to 11/23/10 LocationCordelia Junction, CA Grid Size400 m x 400 m Representative Capacity4 MW Data collection rate10 seconds Data collection period11/6/10 to 11/12/10

27 10-second data in 4 km grid (11/21/10) 1 Location25 Locations 1 Location25 Locations Combining output from multiple locations reduces variability

28 10-second data in 400 meter grid (11/10/10) Combining output from multiple locations reduces variability

Generation Relates Linearly to Avg. Losses Example of marginal loss savings calculation for a given hour 29 Without PVWith PVChange Generation10,000 MW9,000 MW1,000 MW Avg. Losses10%9% Losses1,000 MW810 MW190 MW Loss Savings 19%

Example Account Evaluation 30 Est. 28% of distribution 2012 capital investments were potentially deferrable by DG Est. 28% of distribution 2012 capital investments were potentially deferrable by DG