Current consensus holds that 1) passing through wholesale electricity clearing prices to end-use consumers will produce maximal efficiency gains and 2) simpler forms of time-varying retail rates will capture only a small portion of potential benefits. We show that neither holds in the presence of capacity costs typical in U.S. wholesale markets. Using an optimization model describing the short-term problem faced by an electricity retailer, we find hourly prices that optimally pass through capacity costs. We estimate benefits for a retailer using these prices as well as optimal configurations of a number of time-varying rate structures. Testing a range of realistic assumptions, we find that in the absence of a well-designed demand charge, passing through clearing prices may miss up to three quarters of the benefits possible from optimal hourly prices. By contrast, a simpler critical peak pricing structure enables retailers to achieve approximately two-thirds of the total possible benefits.
AlcottH. (2013). Real-time pricing and electricity market design. Working Paper.
2.
AtaB.DuranA. S.IslegenO. (2015). An analysis of time-based pricing in electricity supply chains. Working Paper.
3.
Baltimore Gas &Electric (2015). Time of use pricing. Available at https://www.bge.com/waystosave/manageyourusage/Pages/Time-of-Use-Pricing.aspx.
4.
BorensteinS. (2005). The long-run efficiency of real-time electricity pricing. The Energy Journal26(3): 93-116. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol26-No3-5.
5.
BorensteinS.HollandS. (2005). On the efficiency of competitive electricity markets with time-invariant retail prices. RAND Journal of Economics36(3): 469-493.
6.
BowringJ. (2013). Capacity markets in PJM. Economics of Energy & Environmental Policy2(2). http://dx.doi.org/10.5547/2160-5890.2.2.3.
7.
CappersP.ToddA.PerryM.NeenanB.BoisvertR. (2013). Quantifying the impacts of time-based rates, enabling technology, and other treatments in consumer behavior studies: Protocols and guidelines. Available at https://www.smartgrid.gov/files/LBNL EPRI AnalysisProtocols FINAL-20130716.pdf.
8.
ComEd (2015). Hourly pricing program. Available at https://hourlypricing.comed.com/.
9.
CramtonP.StoftS. (2006). The convergence of market designs for adequate generating capacity. Report for California Electricity Oversight Board.
10.
CrewM. A.FernandoC. S.KleindorferP. R. (1995). The theory of peak-load pricing: A survey. Journal of Regulatory Economics8(3): 215-248. http://dx.doi.org/10.1007/BF01070807.
11.
FaruquiA. (2015). A global perspective on time-varying rates. Available at http://www.brattle.com/system/publications/pdfs/000/005/183/original/A_global_perspective_on_time-varying_rates_Faruqui_061915.pdf?1436207012.
12.
FaruquiA.HledikR.PalmerJ. (2012). Time-varying and dynamic rate design. Available at http://www.raponline.org/document/download/id/5131.
13.
FaruquiA.MitarotondaD. (2011). Energy efficiency and demand response in 2020-a survey of expert opinion. Available at http://www.brattle.com/system/publications/pdfs/000/004/697/original/Energy_Efficiency_and_Demand_Response_in_2020_Faruqui_Mitarotonda_Nov_2011.pdf.
14.
FaruquiA.SergiciS. (2009). Household response to dynamic pricing of electricity-a survey of the experimental evidence. Available at http://www.hks.harvard.edu/hepg/Papers/2009/The
15.
GlickD.LehrmanM.SmithO. (2014). Rate design for the distribution edge. Available at http://www.rmi.org/elab_rate_design.
16.
HoganW. W. (2014). Time-of-use rates and real-time prices. Working Paper.
17.
HollandS.MansurE. (2006). The short-run effects of time-varying prices in competitive electricity markets. The Energy Journal27(4): 127-155. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol27-No4-6.
18.
JoskowP. (2008). Capacity payments in imperfect electricity markets: Need and design. Utilities Policy16(3): 159-170. http://dx.doi.org/10.1016/jjup.2007.10.003.
19.
Massachusetts Department of Public Utilities (2014, June). Anticipated policy framework for time varying rates. Available at http://www.mass.gov/eea/docs/dpu/orders/d-p-u-14-04-b-order-6-12-14.pdf.
20.
Monitoring Analytics, LLC (2015). 2014 state of the market report for PJM. Available at http://www.monitoringanalytics.com/reports/PJM_State_of_the_Market/2014.shtml.
21.
National Grid (2015). Time-of-use. Available at https://www.nationalgridus.com/masselectric/home/rates/4_tou.asp.
22.
NewellS.FaruquiA.SwiderM.BrownC.PrattD.JaggiA.BowersR. (2009). Dynamic Pricing: Potential Wholesale Market Benefits in New York State. Available at http://www.nyiso.com/public/webdocs/media_room/publi-cations_presentations/White_Papers/White_Papers/Dynamic_Pricing_NYISO_White_Paper_102709.pdf.
23.
NRG Home (2015). NRG home electricity plans. Available at http://www.nrghomepower.com/plans/.
24.
Ontario Hydro (2015). Ontario hydro rates. Available at http://www.ontario-hydro.com/index.php?page=current_rates.
25.
Pacific Gas &Electric (2015). Time-of-use. Available at http://www.pge.com/en/mybusiness/rates/tvp/toupricing.page.
26.
Pacific Gas &Electric (2015). Peak Day Pricing. Available at https://www.pge.com/en_US/business/rate-plans/rate-plans/peak-day-pricing/peak-day-pricing.page.
27.
PJM (2015). PJM data miner. Available at http://www.pjm.com/markets-and-operations/etools/data-miner.aspx.
28.
PJM (2013). PJM financial report 2012. Available at http://www.pjm.com//media/about-pjm/newsroom/annual-reports/2012-financial-report.ashx.
29.
PJM (2014a). 2017/2018 RPM base residual auction planning period parameters. Available at https://www.pjm.com//media/markets-ops/rpm/rpm-auction-info/2017-2018-rpm-bra-planning-parameters-report.ashx.
30.
PJM (2014b). Summer 2014 weather normalized RTO coincident peaks. Available at https://www.pjm.com//media/planning/res-adeq/load-forecast/summer-2014-pjm-5cps-and-w-n-zonal-peaks.ashx.
31.
PJM (2015a). Annual transmission revenue requirements and rates. Available at http://www.pjm.com//media/markets-ops/settlements/network-integration-trans-service-january-2015.ashx.
32.
PJM (2015b). PJM financial report 2014. Available at http://www.pjm.com//media/about-pjm/newsroom/annual-reports/2014-financial-report.ashx.
33.
Public Utilities Commission of the State of California (2015). Decision on residential rate reform for Pacific Gas and Electric company, Southern California Edison company, and San Diego Gas &Electric company and transition to time-of-use rates. Available at http://docs.cpuc.ca.gov/PublishedDocs/Published/G000/M153/K024/153024891.PDF.
34.
Southern California Edison (2015). Time-of-use rates FAQ. Available at https://www.sce.com/wps/portal/home/business/tools/time-of-use/Time-of-Use-Rates-FAQs/.
35.
SpeesK.LaveL. (2008). Impacts of responsive load in PJM: Load shifting and real time pricing. The Energy Journal29(2): 101-121. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol29-No2-6.
36.
U.S. Department of Energy (2015). Interim report on customer acceptance, retention, and response to time-based rates from the consumer behavior studies. Available at http://energy.gov/oe/downloads/interim-report-customer-acceptance-reten-tion-and-response-time-based-rates-consumer.
37.
U.S. Energy Information Agency (2015). Electric power sales, revenue, and energy efficiency Form EIA-861 detailed data files. Available at https://www.eia.gov/electricity/data/eia861/.
38.
U.S. Energy Information Agency (2015). Electric power monthly. Available at http://www.eia.gov/electricity/monthly/pdf/epm.pdf.
39.
WachterA.BieglerL. T. (2006). On the implementation of an interior-point filter line-search algorithm for large-scale nonlinear programming. Mathematical Programming106(1): 25-57. http://dx.doi.org/10.1007/s10107-004-0559-y.
40.
We Energies (2015). Time-of-use. Available at https://www.we-energies.com/residential/acctoptions/time-of-use.htm.
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