Solar Power Update. Bill Barker, AICP Executive Director Solar San Antonio, Inc. The Society of American Military Engineers

Transcription

1 Solar Power Update Bill Barker, AICP Executive Director, Inc. The Society of American Military Engineers San Antonio Post July 8, 2008

2 Outline Why advocate for solar power? What is the status of solar power in San Antonio? What are the solar technology trends?

3 Why advocate for solar power?

4 Terawatt Challenge Dr. Richard Smalley Nobel Prize in Chemistry, 1996 April 16, 2003 Trinity University presentation To solve the energy challenge, we will have to find a way to produce, every day, not just what we are producing right now, but at least twice that much. we have to revolutionize the world s energy system. our biggest resources are in the areas where we generate hardly any energy at all right now solar, wind and geothermal. creating an efficient local storage solution should be one of our prime energy targets.

5 World Energy Production Forecast (Million [metric] tons of oil equivalent) J. Schindler, R. Wurster, M. Zerta, V. Blandow and W. Zittel, Where will the Energy for Hydrogen Production come from?, Commissioned by the German Hydrogen and Fuel Cell Association, Ludwig-Bölkow-Systemtechnik GmbH, Ottobrunn, Germany, 2006

6 How much do we have? 40 minutes sunlight on Earth s surface = energy consumed by population of the planet in one year Equivalent Stock of Energy Source Annual Energy from the Sun Uranium Natural Gas Oil Coal Annual Energy Demand

7 Solar Power May Dominate Global Energy Mix by Century End Source: German Advisory Council on Global Change, World in Transition Towards Sustainable Energy Systems, 2003

8 Mathis Wackernagel, PhD, Advancing Sustainable Production with the Ecological Footprint, Copenhagen Workshop - Solstice, 2007

9 Water and electricity generation A 60-Watt incandescent bulb can consume up to 6,000 gallons of water a year 1 million BTU = 293 kilowatt-hrs

10

11 Why use solar power? Reduce ozone Reduce greenhouse gases No transmission losses/costs No imported fuel Fuel price stability No waste problems Long term fuel availability Less vulnerable distributed power No water impacts Conventional Solar

12 What is the status of solar power in San Antonio?

13 Geography of Insolation Las Vegas Phoenix El Paso Albuquerque Los Angeles Dallas-Fort Worth San Francisco San Antonio Austin Miami Corpus Christi Houston New York Chicago Average Kilowatt-Hours/Square-Meter/Day

14 Isocost Curves of Solar Grid Parity San Antonio, TX Adapted from Travis Bradford, Solar Revolution: The Economic Transformation of the Global Energy Industry, The MIT Press, 2006

15 Solar Power in San Antonio ~ ½ MW of solar installed Lead the State of Texas Largest PV (180KW) at Fort Sam Largest solar hot water at Bexar County Jail Annex 200 KW PV being installed at Pearl Brewery San Antonio named Solar America City Mayor and Council leadership CPS Energy target of 100MW solar

16 DOE Solar America Cities

17 What are the solar technology trends?

18 Two Basic Directions for Solar Electric Power Generation Centralized power generation Large facilities remote from population Quickest, cheapest way to get 100 s of solar MW online? Transmission losses & costs Vulnerable target? Stored heat and/or natural gas hybrid Distributed generation Local solar combined with fuel cells, CHP, etc. into smart microgrid Distributed storage Smart sharing of power to match local loads and interface with grid Ultimately more efficient, secure and costeffective?

19 A Grand Solar Plan Solar power could meet 69% of U.S. electricity needs by 2050 Solar plants would be built in the Southwest with compressed air storage of energy for nighttime power A new high-voltage, directcurrent (VDC) transmission backbone would be needed to distribute power across the U.S. from Los Angeles through San Antonio to Atlanta

20 Utility Scale Solar Power

21 Announced Utility Projects Location: Mojave Desert, USA. Megawatts: 500 MW, with plans to expand to 900 MW. Electric Utility: Pacific Gas & Electric. Status: Will begin operating as early as Location: Mojave Desert, USA. Megawatts: 500 MW, with possible expansion to 850 MW. Electric Utility: San Diego Gas & Electric. Status: Will begin operating in Location: Florida, USA Megawatts: 300 MW. Solar Company & Electric Utility: Florida Power & Light. Status: Scheduled to begin operating in Location: Arizona, USA. Megawatts: 280 MW. Electric Utility: Arizona Public Service Co. Status: Scheduled to begin operating in 2011.

22 Solar from Orbit

23

24 Generations of PV

25 3 rd Generation PV Applications Flexible Light-weight Charger Wearable Power PowerCloth

26 DOE Solar America Initiative SAI will bring increasingly cost-competitive systems to market between now and 2015, with benefits accruing from the early SAI years.

27 Energy Storage Technology 1.2 MW Sodium-Sulfur Flow Battery, Charleston, WV 110 MW Compressed Air Energy Storage Facility, McIntosh, AL

28

29