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Texas Power Stations (and Hurricane Harvey) – map below. Wind Farms are indicated by the grey wind sign and the purple and white signs are the two nuclear power stations – with two nuclear reactors each, i.e. a total of four large reactors.

https://www.eia.gov/special/disruptions/ [Update: They appear to have removed many of the layer functions. They can be found here without storm info: https://www.eia.gov/state/maps.php ]
From EIA.gov energy analysis of Texas:
* Texas was the leading crude oil-producing state in the nation in 2015 and exceeded production levels even from the federal offshore areas.
* As of January 2016, the 29 petroleum refineries in Texas had a capacity of over 5.4 million barrels of crude oil per day and accounted for 30% of total U.S. refining capacity.
* Texas accounted for over 27% of U.S. marketed natural gas production in 2015, making it the leading natural gas producer among the states.
* Texas leads the nation in wind-powered generation capacity with more than 18,500 megawatts; in 2014 and 2015, Texas wind turbines produced more electricity than the state’s two nuclear plants. 
* Texas is the nation’s largest producer of lignite coal. About 40% of the coal burned for electricity generation in Texas is lignite.
Last Updated: January 19, 2017
Texas Energy Overview:

Renewable energy
In 1999, the Public Utility Commission of Texas first adopted rules for the state’s renewable energy mandate. In 2005, the state legislature amended the mandate to require that 5,880 megawatts, or about 5% of the state’s electricity capacity, come from renewable sources by 2015. Lawmakers also set a goal of 10,000 megawatts of renewable capacity by 2025, including 500 megawatts from resources other than wind. Texas surpassed the 2015 goal in 2005 and the 2025 goal in 2009, almost entirely with wind power.99 Renewable energy sources contributed one-tenth of the state’s net electricity generation in 2015, and that amounted to nearly one-sixth of U.S. electricity from all nonhydroelectric renewable sources. Texas produced more nonhydroelectric renewable generation than any other state in the nation.100

Texas leads the nation in wind-powered generation, with nearly one-fourth of the U.S. total in 2015.

Wind accounts for nearly all of the electricity generated from renewable resources in Texas.101 The state encouraged construction of wind farms on its wide plains by authorizing Competitive Renewable Energy Zones (CREZ), a $7-billion effort in which transmission lines were built to connect to future wind farms.102 Texas leads the nation in wind-powered electricity generation, producing nearly one-fourth of the U.S. total in 2015.103 In 2011, Texas was the first state to reach 10,000 megawatts of installed wind generating capacity.104 At the end of 2015, Texas had more than 18,500 megawatts of wind capacity installed.105 Utility-scale wind facilities represented nearly one-sixth of the state’s total generating capacity106 and produced one-tenth of state net generation.107 More than 5,000 megawatts of additional wind generation capacity are under construction.108

Texas is also rich in other renewable energy resources. High levels of direct solar radiation in West Texas give the state some of the largest solar power potential in the nation.109 Decreasing costs for solar photovoltaic (PV) panels and improved transmission access from the CREZ projects resulted in rapid increases in solar PV capacity in 2015, when installed utility-scale solar capacity within ERCOT grew by nearly half, to 288 megawatts.110 In early 2016, more than 1,700 megawatts of solar capacity were in development in ERCOT.111 In 2015, nearly one-third of Texas solar generation came from distributed (customer-sited, small-scale) facilities,112 and distributed capacity is increasing.113

The agricultural and forestry sectors provide Texas with abundant biomass and biofuel resources. Currently, less than 1% of the state’s electricity is generated using biomass.114 Texas is expanding its use of biomass in the production of electricity.115 Texas has four biofuels plants in the agriculturally rich high plains region in the state’s northwest. The plants produce ethanol from corn and sorghum feedstocks.116

Hydroelectric power contributes less than 1% to the electricity generated in Texas because the relatively gentle terrain and low rainfall throughout much of the state are not conducive to its development.

Reservoirs are primarily used for water storage, with electricity generation as a secondary purpose, and water is usually not released from reservoirs solely to generate power.117 However, the state does have some untapped hydropower resources, especially for small-scale, low-impact technologies.118

Texas has a unique untapped geothermal resource: its large network of crude oil and natural gas wells. Existing wells connect to deeper geothermal resources, many with water as hot as 200°C. More than 12 billion barrels of non-potable water are produced annually as a byproduct from the state’s crude oil and natural gas wells, and heat from that water could be used to generate electricity.119 On a smaller scale, Texas’ geothermal resources have been tapped to heat and cool homes and schools around the state.120

99 NC Clean Energy Technology Center, DSIRE, Renewable Portfolio Standard, Texas, updated April 29, 2016.
100 U.S. EIA, Electric Power Monthly (February 2016), Table 1.11.B.
101 U.S. EIA, Electric Power Monthly (February 2016), Tables 1.11.B, 1.14.B.
102 Malewitz, Jim, “$7 Billion CREZ Project Nears Finish, Aiding Wind Power,” The Texas Tribune (October 14, 2013).
103 U.S. EIA, Electric Power Monthly (February 2016), Table 1.14.B.
104 U.S. EIA, Electricity, Detailed State Data, Existing Nameplate and Net Summer Capacity by Energy Source, Producer Type and State (EIA-860), 1990-2015.
105 American Wind Energy Association, Texas Wind Energy, accessed December 21, 2016.
106 U.S. EIA, Electricity, Detailed State Data, Existing Nameplate and Net Summer Capacity by Energy Source, Producer Type and State (EIA-860), 1990-2015.
107 U.S. EIA, Electric Power Monthly (February 2016), Tables 1.3.B, 1.14.B.
108 American Wind Energy Association, Texas Wind Energy, accessed December 21, 2016.
109 U.S. National Renewable Energy Laboratory, Dynamic Maps, GIS Data, and Analysis Tools, Solar Maps, updated July 18, 2016.
110 Electricity Reliability Council of Texas, Your Power, Our Promise, 2015 State of the Grid Report (February 2016), p. 23.
111 Fares, Robert, “Texas Poised to Integrate More Solar, Wind Energy,” Scientific American (March 17, 2016).
112 U.S. EIA, Electric Power Monthly (February 2016), Table 1.17.B.
113 Solar Energy Industries Association, Texas Solar, accessed December 21, 2016.
114 U.S. EIA, Electric Power Monthly (February 2016), Table 1.15.B.
115 Texas State Energy Conservation Office, Biomass Energy, accessed December 21, 2016.
116 U.S. Ethanol Plants, Ethanol Producers Magazine, updated January 23, 2016.
117 Texas Comptroller of Public Accounts, The Energy Report (May 2008), Chapter 19, Hydropower.
118 State Energy Conservation Office, Texas Renewable Energy Resource Assessment 2008, Chapter 6, Energy from Water, Quantification of Resource, accessed December 21, 2016.
119 U.S. Department of Energy, Energy Efficiency and Renewable Energy, Geothermal Technologies Program, Texas, DOE/GO-102006-2213 (April 2006).
120 Henry, Terrence, Mose Buchele, and Dave Fehling, “What Are the Non-Wind and Non-Solar Renewable Resources in Texas?” State Impact Texas, NPR, accessed December 21, 2016.