Present and Future: Solar Thermal in the US Les Nelson Solar Thermal Division Solar Energy Industries Association Solar Thermal Roadmap Symposium October 20, 2009

Global Solar Thermal Market 2007 Newly installed solar thermal collectors in 2007 Approx: 20 GW th Equivalent to: 28,300,000 m 2 Preliminary data May 2008 Source: Koldehoff 77% 14 %

Global Solar Thermal Market, 2007 Newly installed solar thermal collectors in 2007 Approx: 20 GW th Equivalent to: 28,300,000 m 2 Preliminary data May 2008 Source: Koldehoff

US Market Compared with European Market Italy 2007 Installations 245,000 m 2 USA 2008 Estimated Installations 180,000 m 2 Germany 2007 Installations 940,000 m 2 (Increasing market share; 2009 data shows 44%) NEW 2009 Data: Total European Market: 4,750,000 m 2 USA = 3.7 % USA

NY Solar Thermal Symposium Northwest 500 New England + New York 1,500 California 1,000 Arizona 1,500 Florida 3,000 Midwest and All Other US 5,000+ Hawaiian Islands 8,500 US Solar Thermal Installations Estimated in 2008 Mid-Atlantic 1,500 25,000 to 30, square foot (6 m 2 ) system installations in 2008 in US

End Use Energy in the US Space Heating + Water Heating = 29.4% of US Building Energy Use

Current Trends Solar Water Heating Rapid Increase of Imports Evacuated Tube Collector Models Proliferating General Consensus: 2009 Installations Flat or Slightly Lower Solar Swimming Pool Heating 2009 Sales Flat to Slightly Lower Over 35,000 system equivalents installed 350 feet 2 /system) Solar Space Heating “Combi-system” interest grows Air heating collector-based system interest grows Solar Air Conditioning Interest growing as an electricity consumption reduction measure

US Federal Government Support US Department of Energy “Solar Heating and Cooling Research & Development Program” Program Manager Bob Hassett 2009 Actual Budget $3.7 million for solar thermal 2010 Budget Request $6.5 million for solar thermal 2010 Budget Request for PV $170 million 2010 Budget Request for Concentrating Solar Power $50 million U.S. Solar Heating & Cooling Roadmap Introduction Meeting Monday, Oct. 26, 1:30 – 4:30 p.m. Anaheim Marriott Hotel, Platinum 7 & 8 Anaheim, CA

Investment Tax Credit (ITC) for Solar Thermal Original legislation established ITC effective 1/1/06 Extended to 2016 in 2008 $2,000 ITC cap eliminated effective 1/1/09 Was 30% of system price with a maximum $2,000 Now 30% of system price with no maximum Specifically references “solar water heating,” not space heating Products for which credit claimed must be certified by SRCC SEIA will address eligibility of space heating and commercial swimming pools

Energy Star Labeling for Solar Water Heaters High Efficiency Water Heater Program began 1/1/09 Includes solar, natural gas, heat pump& instantaneous SRCC OG-300 Solar System Certification required 43 System Suppliers participating Systems must provide at least 50% of water heating load

Renewable Energy Credits (RECs) RECs usually assigned to renewable electricity generation Reduction of electricity consumption by solar thermal indistinguishable from renewable electricity generation Some in REC assignment for solar with natural gas Lakeland Electric (FL) and Sterling Planet completed first larger scale solar thermal REC trade Growing interest in thermal as consumption reduction measure Limited activity in solar thermal RECs trading Australia program includes solar water heating “Measured” versus “Predicted” energy generation at issue

Solar Rating & Certification Corporation Non-profit Corporation established 1980 Internationally recognized standards (ISO , 2 & 3) ~ 74 Participant Suppliers ~ 300 solar collectors certified (OG-100) ~ 900 solar systems certified (OG-300) Future SRCC Solar Thermal Objectives Certification for space heating (Combi-systems) Certification for concentrating solar collectors Certification for cooling (air conditioning) systems Standards for performance monitoring NY Solar Thermal Symposium

SRCC OG-100 (Collector) and OG-300 (System) Certifications

NY Solar Thermal Symposium What is Solar Thermal Product Certification? 1.Solar collector undergoes durability test 2.Solar collector undergoes thermal performance test 3.Solar system (using certified solar collector) undergoes design evaluation 4.Solar system is rated for performance in various geographic areas

NY Solar Thermal Symposium Solar Collector Durability Test Pre-test inspection Pre-exposure Pressure Test Thirty-Day Exposure Test Thermal Shock/Water Spray Test Thermal Shock/Cold Fill Test Post-exposure Pressure Test

NY Solar Thermal Symposium Outdoor Collector Performance Testing ± Pros: Accuracy of performance prediction ± Cons: Time consuming – time required for test completion contingent on weather conditions (7 to 50 days in FL) Annual testing period limited based on climatic conditions (geographic location) More manual labor may be required (daily positioning of test stands in FL)

NY Solar Thermal Symposium Indoor Performance Testing with “Solar Simulator” Courtesy: Atlas Manufacturing ± Pros: Significantly faster testing (hours versus days) 24/7/365 capability (not weather dependant) ± Cons: May yield different results than outdoor testing Significant capital expense Ongoing maintenance Electricity intensive

NY Solar Thermal Symposium Typical SRCC Solar Collector Performance Rating Table Comparability based on operating temperature and sunlight strength

OG-300 Solar System Certification – Design review Manufacturer or supplier’s system design evaluation Component review (including substitutions) Overall operation (known best practices) – Comprehensive Installation Manual required – Owner’s Operation Manual required – However: System selection must be appropriate for the climatic conditions and the application Some systems not designed for cold climates Excessive collector area may lead to overheating

Typical SRCC OG-300 System Schematic NY Solar Thermal Symposium

NY Solar Thermal Symposium NY-ALBANYHeliodyne, Inc.Helio-Flo HF 2408 G 120 AC S E F KWH NY-ALBANYHeliodyne, Inc.Helio-Flo HF 2410 G 120 AC S E G KWH NY-ALBANYHeliodyne, Inc.Helio-Flo HF 3408 G 120 AC S E H KWH NY-ALBANYHeliodyne, Inc.Helio-Flo HF 3410 G 160 AC S E I KWH NY-ALBANYHeliodyne, Inc.Helio-Flo HF 2408 G 80 AC D Z E27138 therms NY-ALBANYHeliodyne, Inc.Helio-Flo HF 2408 G 120 AC D Z F27142 therms NY-ALBANYHeliodyne, Inc.Helio-Flo HF 2410 G 120 AC D Z G27157 therms NY-ALBANYHeliodyne, Inc.Helio-Flo HF 3408 G 120 AC D Z H27154 therms Annual Performances of SRCC Certified Solar Systems at Locations Location Manufacturer Model System Designation Model Info Freeze Tolerance Energy Savings

NY Solar Thermal Symposium The North American Board of Certified Energy Practitioners Incorporated in 1992 Offers certification programs to renewable energy professionals 112 NABCEP Certified Solar Thermal Installers 936 NABCEP Certified PV Installers Small Wind in development Headquartered in Clifton Park, NY Support from NYSERDA, US DOE Developing “Entry Level” Program for Solar Thermal

Solar Water Heating in the US 100 years ago Los Angeles, California Homes Circa 1910

NY Solar Thermal Symposium Fenway Park by groSolar

Les NelsonDivision Chair Solar Energy Industries Association Washington, DC Aventura, Ste. A Rancho Santa Margarita, CA Telephone: (949) NY Solar Thermal Symposium Thank you!

NY Solar Thermal Symposium Exova Canada Inc Speakman Drive Mississauga, Ontario L5K 1B3 Canada Florida Solar Energy Center 1679 Clearlake Road Cocoa, FL Fraunhofer Institute for Solare Energy Systems Test Lab for Solar Thermal Heidenhofstrase Freiburg, Germany ISFH Institut fur Solarenergieforschung GmbH, Hameln/Emmerthal Am Ohrberg 1 Hameln/Emmerthal Germany ITW Research and Testing Centre for Thermal Solar Systems (TZS) University of Stuttgart, Germany Stuttgart, Germany Germany IZES gGmbH Altenkesseler Str. 17 Saarbrucken, D Germany SPF Institute fur Solartechnik Hochschule fur Technik Rapperswil Oberseestrasse 10 Rapperswil CH-8640 Switzerland TUV Rheinland Immissionsschutz und Energiesysteme GmbH Cologne Germany Laboratories Offering SRCC Accredited Testing Programs Pending as of October 2009: 1 Canada 2 Europe 4 US