We use a large California database of over 32,000 hourly observations in the 45-month period of April 2010 through December 2013 to document the ex post variable profit effects of multiple fundamental drivers on natural-gas-fired electricity generation. These drivers are the natural-gas price, system loads, nuclear capacities available, hydro conditions, and renewable generation. We find that profits are reduced by increases in generation from nuclear plants and wind farms, and are increased by increases in the natural-gas price and loads. Solar generation has a statistically insignificant effect, although this will likely change as solar energy increases its generation share in California’s electricity market. Our findings support California’s adopted resource adequacy program under which the state’s load-serving entities may sign long-term bilateral contracts with generation developers to provide sufficient revenues to enable construction of new natural-gas-fired generation plants.
AlagappanL.OransR.WooC.K. (2011). “What drives renewable energy development?” Energy Policy39(9): 50995104. http://dx.doi.org/10.1016/j.enpol.2011.06.003.
2.
BaetzJ. (2011). “Germany nuclear power plants to be entirely shut down by 2022.” Huffington Post; 30 May. Available at: http://www.huffingtonpost.com/2011/05/30/germany-nuclear-power-plant-shut-down_n_868786.html
3.
BarrosoL.A.RudnickH.SensfussF.LinaresR. (2010). “The green effect.” IEEE Power & Energy Magazine, September/October: 22-35. http://dx.doi.org/10.1109/MPE.2010.937595.
4.
BenthF.E.KoekebakkerS. (2008). “Stochastic modeling of financial electricity contracts.” Energy Economics30(3): 1116-1157. http://dx.doi.org/10.1016/j.eneco.2007.06.005.
5.
BessembinderH.LemmonM. (2002). “Equilibrium pricing and optimal hedging in electricity forward markets.” Journal of Finance57(3): 1347-1382. http://dx.doi.org/10.1111/1540-6261.00463.
6.
BessembinderH.LemmonM. (2006). “Gains from trade under uncertainty: The case of electric power markets.” Journal of Business79(4): 1755-1782. http://dx.doi.org/10.1086/503647.
7.
BohnR.E.CaramanisM.C.SchweppeF.C. (1984). “Optimal pricing in electrical networks over space and time.” Rand Journal of Economics15: 360-376. http://dx.doi.org/10.2307/2555444.
8.
BorensteinS. (2002). “The trouble with electricity markets: Understanding California’s restructuring disaster.” The Journal of Economic Perspectives16(1): 191-211. http://dx.doi.org/10.1257/0895330027175.
9.
Brattle Group (2007). Quantifying Demand Response Benefits in PJM. Available at: http://brattle.com/system/publications/pdfs/000/004/917/original/Quantifying_Demand_Response_Benefits_in_PJM_Jan_29_2007.pdf?1379343092
10.
Brattle Group (2012). ERCOT Investment Incentives and Resource Adequacy. Available at: http://brattle.com/news-and-knowledge/news/115
11.
BunnD.FezziC. (2007). “Interaction of European carbon trading and energy prices.” Available at: http://www.bepress.com/cgi/viewcontent.cgi?article1124&contextfeem. http://dx.doi.org/10.2139/ssrn.993791.
12.
BurgerM.BernhardK.MullerA.SchindlmayrG. (2004). “A spot market model for pricing derivatives in electricity markets.” Quantitative Finance4(1): 109-122. http://dx.doi.org/10.1088/1469-7688/4/1/010.
13.
CAISO (2013). Informational Filing In Compliance With October 29, 2013 Order Docket No. ER13-2296. California Independent System Operator, Folsom, California. Available at: http://www.caiso.com/Documents/Oct29_2014_InfoFiling_CostRecovery_150PercentCap_ER13-2296.pdf
14.
CAISO (2014a). “What the duck curve tells us about managing a green grid.” California Independent System Operator, Folsom, California. Available at: www.caiso.com/Documents/FlexibleResourcesHelpRenewables_FastFacts.pdf
15.
CAISO (2014b). Gas Price Component of Projected Proxy Cost. California Independent System Operator, Folsom, California. Available at: http://www.caiso.com/Documents/ProjectedProxyCostGasPriceComponent-ProjectedGreenhouseGasAllowancePrice.pdf
16.
CAISO (2014c). 2013 Annual Report on Market Issues & Performance. California Department of Market Monitoring, California Independent System Operator, Folsom, California. Available at http://www.caiso.com/Documents/2013 AnnualReport-MarketIssue-Performance.pdf
CEC (2010). Comparative Costs of California Central Station Electricity Generation. Report CEC- 200-2009-07SF, California Energy Commission, Sacramento, California. Available at: http://www.energy.ca.gov/2009publications/CEC-200-2009-017/CEC-200-2009-017-SF.PDF
19.
CEC (2014). 2013 Integrated Energy Policy Report. California Energy Commission, Sacramento, California. Available at: http://www.energy.ca.gov/2013publications/CEC-100-2013-001/CEC-100-2013-001-CMF.pdf
20.
CutlerN.J.MacGillI.F.OuthredH.R.BoeremaN.D. (2011). “High penetration wind generation impacts on spot prices in the Australian national electricity marketEnergy Policy39, 5939-5949. http://dx.doi.org/10.1016/j.enpol. 2011.06.053.
21.
DavidsonR.MackinnonJ.G. (1993). Estimation and Inference in Econometrics. New York: Oxford.
22.
DengS.J.JohnsonB.SogomonianA. (2001). “Exotic electricity options and valuation of electricity generation and transmission.” Decision Support Systems30(3): 383-392. http://dx.doi.org/10.1016/S0167-9236(00)00112-3.
23.
DengS.J.OrenS.S. (2006). “Electricity derivatives and risk management.” Energy31(6-7): 940-953. http://dx.doi.org/10.1016/j.energy.2005.02.015.
24.
DengS.J.XiaZ. (2006). “A real options approach for pricing electricity tolling agreements.” International Journal of Information Technology & Decision Making5(3): 421-436. http://dx.doi.org/10.1142/S0219622006002039.
25.
DouglasS.M.PopovaJ.N. (2011). “Econometric estimation of spatial patterns in electricityprices.” The Energy Journal32(2): 81-105. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol32-No2-4.
26.
Energy & Environmental Economics (2014). Investigating a Higher Renewables Portfolio Standard in California. Available at: https://www.ethree.com/documents/E3_Final_RPS_Report_2014_01_06_with_appendices.pdf
27.
European Wind Energy Association (2010). Wind Energy and Electricity Prices: Exploring the Merit Order Effect. Available at: http://www.ewea.org/fileadmin/ewea_documents/documents/publications/reports/MeritOrder.pdf
28.
EydelandA.WolyniecK. (2003). Energy and Power Risk management: New Development in Modeling, Pricing and Hedging. New York: John Wiley.
29.
FarisS. (2011). “Italy says no to nuclear power — and to Berlusconi.” Time World; 14 June. Available at: http://con-tent.time.com/time/world/article/0,8599,2077622,00.html
30.
FaruquiA.SegiciS. (2010). “Household response to dynamic pricing of electricity: a survey of 15 experiments.” Journal of Regulatory Economics38:193-225. http://dx.doi.org/10.1007/s11149-010-9127-y.
31.
FERC (2008). “Assessment of demand response & advanced metering,” Federal Energy Regulatory Commission, Washington, D.C. Available: http://www.ferc.gov/legal/staff-reports/12-08-demand-response.pdf
32.
FigueiredoV.RodriguesD.ValeZ. (2005). “Simulating DSM impact in the new liberalized electricity market.” Available at: http://www.aedie.org/9CHLIE-paper-send/206-figueiredo.pdf.
33.
GelabertL.LabandeiraX.LinaresP. (2011). “An ex-post analysis of the effect of renewable and cogeneration on Spanish electricity prices.” Energy Economics22: 559-565. http://dx.doi.org/10.1016/j.eneco.2011.07.027.
34.
GilH.A.Gomez-QuilesC.RiquelmeJ. (2012). “Large-scale wind power integration and wholesale electricity trading benefits: Estimation via an ex post approach.” Energy Policy41: 849-859. http://dx.doi.org/10.1016/j.enpol.2011.11.067.
35.
GilH.A.LinJ. (2013). “Wind power and electricity prices at the PJM market.” IEEE Transactions on Power Systems28: 3945-3953. http://dx.doi.org/10.1109/TPWRS.2013.2260773.
36.
GrangerC.W.J.NewboldP. (1974). “Spurious regressions in econometrics.” Journal of Econometrics2: 111-120. http://dx.doi.org/10.1016/0304-4076(74)90034-7.
37.
GreenR.YatchewA. (2012). “Support schemes for renewable energy: An economic analysis.” Economics of Energy & Environmental Policy1(2): 83-98. http://dx.doi.org/10.5547/2160-5890.1.2.6.
38.
GriffesP.H. (2014). “Renewable generation and capacity markets.” Available at: www.iaee.org/en/publications/newslet-terdl.aspx?id=242
HaasR.MeyerN.I.HeldA.FinonD.LorenzoniA.WiserR.NishioK. (2008). Promoting Electricity from Renewable Energy Sources—Lessons Learned from the EU, U.S. and Japan. Lawrence Berkeley National Laboratory, Berkeley, California. Available at: http://escholarship.org/uc/item/17k9d82p
41.
HaldrupN.NielsenM.O., (2006). “A regime switching long memory model for electricity prices.” Journal of Econometrics135(1-2): 349-376. http://dx.doi.org/10.1016/j.jeconom.2005.07.021.
42.
HoganW. (1992). “Contract networks for electric power transmission.” Journal of Regulatory Economics4: 211-242. http://dx.doi.org/10.1007/BF00133621.
43.
HoogwijkM.de VriesB.TurkenburgW. (2004). “Assessment of the global and regional geographical, technical and economic potential of onshore wind energy.” Energy Economics26(5): 889-919. http://dx.doi.org/10.1016/j.eneco. 2004.04.016.
44.
HuismanR.MahieuR.SchlichterF. (2009). “Optimal peak/off-peak allocations.” Energy Economics31(1): 169-174. http://dx.doi.org/10.1016/j.eneco.2008.08.003.
45.
JacobsenH.K.ZvingilaiteE. (2010). “Reducing the market impact of large shares of intermittent energy in Denmark.” Energy Policy38(7): 3403-3413. http://dx.doi.org/10.1016/j.enpol.2010.02.014.
46.
JanczuraJ.WeronR. (2010). “An empirical comparison of alternate regime-switching models for electricity spot prices.” Energy Economics32(5): 1059-1073. http://dx.doi.org/10.1016/j.eneco.2010.05.008.
47.
JohnsenT.A. (2001). “Demand, generation and price in the Norwegian market for electric power.” Energy Economics23(3): 227-251. http://dx.doi.org/10.1016/S0140-9883(00)00052-9.
48.
JoskowP.L.KahnE. (2002). “A quantitative analysis of pricing behavior in California’s wholesale electricity market during Summer 2000.” The Energy Journal 23(4):1-35. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol23-No4-1.
49.
JoskowP.ParsonsJ. (2012). “The future of nuclear power after Fukushima.” Available at: http://hdl.handle.net/172L1/70857. http://dx.doi.org/10.5547/2160-5890.1.2.7.
50.
JoskowP.L. (2013) “Editorial: Symposium on capacity markets.” Economics of Energy & Environmental Policy2(2): v-vi.
KarakatsaniN.V.BunnD.W. (2008). “Intra-day and regime-switching dynamics in electricity price formation.” Energy Economics30(4): 1776-1797. http://dx.doi.org/10.1016/j.eneco.2008.02.004.
53.
KleindorferP.R.LiL. (2005). “Multi-period VAR-constrained portfolio optimization with applications to the electric power sector.” The Energy Journal26(1): 1-26. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol26-No1-1.
54.
KnittelC.R.RobertsM.R. (2005). “An empirical examination of restructured electricity prices.” Energy Economics27(5): 791-817. http://dx.doi.org/10.1016/j.eneco.2004.11.005.
LongstaffF.A.WangA.W. (2004). “Electricity forward prices: a high-frequency empirical analysis.” Journal of Finance59(4): 1877-1900. http://dx.doi.org/10.1111/j.1540-6261.2004.00682.x.
57.
LuX.McElroyM.B.KiviluomaJ. (2009). “Global potential for wind-generated electricity.” Proceedings of National Academy of Sciences106(27): 10933-10938. http://dx.doi.org/10.1073/pnas.0904101106.
58.
LuciaJ.J.SchwartzE.S. (2002). “Electricity prices and power derivatives: Evidence from the Nordic PowerExchange.” Review of Derivatives Research5(1): 5-50. http://dx.doi.org/10.1023/A:1013846631785.
59.
MaddalaG.S. (1983). Limited-Dependent and Qualitative Variables in Econometrics. Cambridge: Cambridge University Press. http://dx.doi.org/10.1017/CBO9780511810176.
60.
MarckhoffJ.WimschulteJ. (2009). “Locational price spreads and the pricing of contracts for difference: Evidence from the Nordic market.” Energy Economics31(2): 257-268. http://dx.doi.org/10.1016/j.eneco.2008.10.003.
61.
MariniS.StradaC.VillaM.BerrettoniM.ZerliaT. (2014). “How solar energy and electrochemical technologies may help developing countries and the environment.” Energy Conversion and Management87: 134-1140. http://dx.doi.org/10.1016/j.enconman.2014.04.087.
62.
MillerN.L.HayhoeK.JinJ.AuffhammerM. (2008). “Climate, extreme heat, and electricity demand in California.” Journal of Applied Meteorology and Climatology47(6): 1834-1844. http://dx.doi.org/10.1175/2007JAMC1480.1.
63.
MilsteinI.TishlerA. (2012). “The inevitability of capacity underinvestment in competitive electricity markets.” Energy Economics34(1): 62-77. http://dx.doi.org/10.1016/j.eneco.2011.07.004.
64.
MoodA.M.GraybillF.A.BoesD.C. (1974). Introduction to The Theory of Statistics. New York: McGraw-Hill.
65.
MooreJ.WooC.K.HoriiB.PriceS.OlsonA. (2010) “Estimating the option value of a non-firm electricity tariff.” Energy35: 1609-1614. http://dx.doi.org/10.1016/j.energy.2009.04.013.
66.
MoralesJ.ConejoA. (2011). “Simulating the impact of wind production on locational marginal prices.” IEEE Transactions on Power Systems26(2): 820-828. http://dx.doi.org/10.1109/TPWRS.2010.2052374.
67.
MountT.D.NingY.CaiX. (2006). “Predicting price spikes in electricity markets using a regime-switching model with time-varying parameters.” Energy Economics28(1): 62-80. http://dx.doi.org/10.1016/j.eneco.2005.09.008.
68.
MunksgaardJ.MorthorstP.E. (2008). “Wind power in the Danish liberalized power market - policy measures, price impact, and investor incentives.” Energy Policy36: 3940-3947. http://dx.doi.org/10.1016/j.enpol.2008.07.024.
69.
NeuhoffK.De VriesL. (2004). “Insufficient incentives for investing in electricity generation.” Utilities Policy12(4): 253-267. http://dx.doi.org/10.1016/j.jup.2004.06.002.
70.
NewberyD. (2010). “Market design for a large share of wind power.” Energy Policy38(7): 3131-3134. http://dx.doi.org/10.1016/j.enpol.2009.07.037.
71.
NewcomerA.BlumsackS.A.AptJ.LaveL.B.MorganM.G. (2008). “Short run effects of a price on carbon dioxide emissions from U.S. electric generators.” Environmental Science & Technology42(9), 3139-3144. http://dx.doi.org/10.1021/es071749d.
72.
ParkH.MjeldeJ.W.BesslerD.A. (2006). “Price dynamics among U.S. electricity spot markets.” Energy Economics28(1): 81-101. http://dx.doi.org/10.1016/j.eneco.2005.09.009.
73.
PhillipsP.C.B.PerronP. (1988). “Testing for a unit root in time series regression.” Biometrika75: 335-346. http://dx.doi.org/10.1093/biomet/75.2.335.
74.
PollittM.G. (2010). UK Renewable Energy Policy since Privatisation. Cambridge University. Available at: http://www. eprg.group.cam.ac.uk/wp-content/uploads/2010/01/PollittCombined2EPRG1002.pdf
75.
RedlC.HaasR.HuberC.BohmB. (2009). “Price formation in electricity forward markets and relevance of systematic forecast errors.” Energy Economics31(3): 356-364. http://dx.doi.org/10.1016/j.eneco.2008.12.001.
76.
RoquesF.A.NewberyD.M.NuttallW.J. (2005). “Investment incentives and electricity market design: The British experience.” Review of Network Economics4(2): 93-128. http://dx.doi.org/10.2202/1446-9022.1068.
77.
RyabchenkoV.UryasevS. (2011). “Pricing energy derivatives by linear programming: Tolling agreement contracts.” Journal of Computational Finance14(3). Available at: http://www.ise.ufl.edu/uryasev/files/2011/11/PRICING_ENERGY_DERIVATIVES_BY_LINEAR_PROGRAMMING.pdf
78.
SAS (2004). SAS/ETS 9.1 User’s Guide. Cary: SAS Institute.
79.
SchmalenseeR. (2009). Renewable Electricity Generation in the United States. MIT. Available at: http://dspace.mit.edu/bitstream/handle/1721.1/51715/2009-017.pdf?sequence1
80.
SensfußF.RagwitzM.GenoeseM. (2008). “The merit-order effect: A detailed analysis of the price effect of renewable electricity generation on spot market prices in Germany.” Energy Policy36(8): 3086-3094. http://dx.doi.org/10.1016/j.enpol.2008.03.035.
81.
SioshansiF.P.PfaffenbergerW. (2006). Electricity Market Reform: An International Perspective. San Diego: Elsevier.
82.
SioshansiF.P. (2013). Evolution of Global Electricity Markets: New paradigms, new challenges, new approaches. San Diego: Elsevier.
83.
SpeesK.NewellS.A.PfeifenbergerJ.P. (2013). “Capacity markets—Lessons learned from the first decade.” Economics of Energy & Environmental Policy2(2): 1-26. http://dx.doi.org/10.5547/2160-5890.2.2.1.
84.
SteggalsW.GrossR.HeptonstallP. (2011). “Winds of change: How high wind penetrations will affect investment incentives in the GB electricity sector.” Energy Policy39(3): 1389-1396. http://dx.doi.org/10.1016/j.enpol.2010.12.011.
85.
SternL. (1998). “Merchant power plants: Competing for financing in a deregulated industry.” The Journal of Structured Finance4(3): 47-55. http://dx.doi.org/10.3905/jsf.43.47.
86.
SuC.L.KirschenD. (2009). “Quantifying the effect of demand response on electricity marketsIEEE Transactions on Power Systems24(3), 1199-1207. http://dx.doi.org/10.1109/TPWRS.2009.2023259.
87.
ThompsonM. (2013). “Optimal economic dispatch and risk management of thermal power plants in deregulated markets.” Operation Research61(4): 791-809. http://dx.doi.org/10.1287/opre.2013.1190.
88.
TishlerA.MilsteinI.WooC.K. (2008). “Capacity commitment and price volatility in a competitive electricity market.” Energy Economics30(4): 1625-1647. http://dx.doi.org/10.1016/j.eneco.2007.03.005.
89.
TraberT.KemfertC. (2011). “Gone with the wind? Electricity market prices and incentives to invest in thermal power plants under increasing wind energy supply.” Energy Economics33(2): 249-256. http://dx.doi.org/10.1016/j.eneco. 2010.07.002.
90.
TraberT.KemfertC. (2012). “German nuclear phase-out policy: Effects on European electricity wholesale prices, emission prices, conventional power plant investments and electricity trade.” Discussion Papers of DIW Berlin 1219, DIW Berlin, German Institute for Economic Research. http://dx.doi.org/10.2139/ssrn.2111325.
91.
VarianH. (1992). Microeconomics Analysis. New York: Norton.
92.
VenkateshA.JaramilloP.GriffinW.M.MatthewsH.S. (2012). “Implications of near-term coal power plant retirement for SO2 and NOX and life cycle GHG emissions.” Environmental Science and Technology46(18): 9838-9845.
93.
WaldM. (2013). “Nuclear plants, old and uncompetitive, are closing earlier than expected.” The New York Times; 14 June. Available at: http://www.nytimes.com/2013/06/15/business/energy-environment/aging-nuclear-plants-are-closing-but-for-economic-reasons.html
94.
WangensteenI.BotterudA.FlataboN. (2005). “Power System Planning and Operation in International Markets -Perspectives from the Nordic Region and Europe.” Proceedings of the IEEE93(11): 2049-2059. Available at: 10.1109/JPROC.2005.857488. http://dx.doi.org/10.1109/JPROC.2005.857488.
95.
WeronR. (2006). Modeling and Forecasting Electricity Loads and Prices. New York: John Wiley. http://dx.doi.org/10.1002/9781118673362.
96.
WolakF.A. (2003). “Diagnosing the California electricity crisis.” Electricity Journal 16(7):11-37. http://dx.doi.org/10.1016/S1040-6190(03)00099-X.
97.
WooC.K. (2001) “What Went Wrong in California’s Electricity Market?” Energy26: 747-758. http://dx.doi.org/10.1016/S0360-5442(01)00047-0.
98.
WooC. K.HorowitzI.MartinJ. (1998). “Reliability differentiation of electricity transmission.” Journal of Regulatory Economics13: 277-292. http://dx.doi.org/10.1023/A:1008033221371.
99.
WooC.K.ChowL.C.H.LiorN., editors (2006a). Electricity Market Reform and Deregulation. Energy 31(6-7). http://dx.doi.org/10.1016/j.energy.2005.03.002.
100.
WooC.K.HorowitzI.OlsonA.HoriiB.BasketteC. (2006b). “Efficient frontiers for electricity procurement by an LDC with multiple purchase options,” OMEGA34(1): 70-80. http://dx.doi.org/10.1016/j.omega.2004.07.022.
101.
WooC.K.HorowitzI.ToyamaN.OlsonA.LaiA.WanR. (2007). “Fundamental drivers of electricity prices in the Pacific Northwest.” Advances in Quantitative Analysis of Finance and Accounting5: 299-323. http://dx.doi.org/10.1142/9789812772213_0015.
102.
WooC.K.KollmanE.OransR.PriceS.HoriiB. (2008). “Now that California has AMI, what can the state do with it?” Energy Policy36: 1366-1374. http://dx.doi.org/10.1016/j.enpol.2007.12.018.
103.
WooC.K.GreeningL., editors (2010). Demand Response Resources, Energy 35(4).
104.
WooC.K.ChowL.C.H.Owenand A., editors (2011a). Renewable Energy Policy and Development. Energy Policy 39(7).
105.
WooC.K.HorowitzI.MooreJ.PachecoA. (2011b). “The impact of wind generation on the electricity spot-market price level and variance: the Texas experience.” Energy Policy39(7): 3939-3944. http://dx.doi.org/10.1016/j.enpol. 2011.03.084.
106.
WooC.K.HorowitzI.HoriiB.OransR.ZarnikauJ. (2012). “Blowing in the wind: vanishing payoffs of a tolling agreement for natural-gas-fired generation of electricity in Texas,” The Energy Journal33(1): 207-229. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol33-No1-8.
107.
WooC.K.ZarnikauJ.KadishJ.HorowitzI.WangJ.OlsonA. (2013). “The impact of wind generation on wholesale electricity prices in the hydro-rich Pacific Northwest.” IEEE Transactions on Power Systems28(4): 4245-4253. http://dx.doi.org/10.1109/TPWRS.2013.2265238.
108.
WooC.K.HoT.ZarnikauJ.OlsonA.JonesR.ChaitM.HorowitzI.WangJ. (2014a). “Electricity-market price and nuclear power plant shutdown: Evidence from California.” Energy Policy73: 234-244. http://dx.doi.org/10.1016/j.enpol.2014.05.027.
YatchewA.BaziliauskasA. (2011). “Ontario feed-in-tariff programs,” Energy Policy39(7): 3885-3893.d
111.
ZarnikauJ. (2011). “Successful renewable energy development in a competitive electricity market: A Texas case study.” Energy Policy39(7): 3906-3913. http://dx.doi.org/10.1016/j.enpol.2010.11.043.
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