Renewable Energy at the Imperial Irrigation District

1. Renewable Energyat theImperial Irrigation District July 17, 2008 Gary L. Ambach Superintendent, DSM

3. Energy Portfolio Gary, does this align with the power content label? Gary, does this align with the power content label?

4. IID’s Commitment to Renewable Energy Board position—20% by 2010 Acquisition of Renewable Energy IID released RFP for 40 MW Negotiating contract Raises renewable energy to 16% Evaluating other options including IID generation

5. 5 Renewable Energy Potential in the Imperial Valley 555 MW of Geothermal generation currently being exported 2,000 Megawatts (MWs) geothermal additional energy potential—enough for 1.5 million homes 35,000 MW solar generation potential Developing wind generation potential Developing other ag-based generation potential Gary, should we say, “Unmatched Renewable Energy Potential in IID’s Service Area”?Gary, should we say, “Unmatched Renewable Energy Potential in IID’s Service Area”?

6. 6 IID’s Major Transmission Initiatives for California and the West GREEN PATH SM Coordinated Projects: GREEN PATH NORTH: Participants Include LADWP, SCPPA and IID. The project proposes a 500 kV transmission line from the proposed Devers II Substation to the Hesperia Substation. GREEN PATH Transmission Expansion Plan: IID’s internal transmission expansion plan which will support the export of renewables into Southern California. The Dixieland Project, which helps serve IID’s load, will provide an additional 600 MW of capacity to the Western Grid. The Midway to Bannister Project will directly connect to renewable energy producers in the Salton Sea geothermal fields. ARIZONA CONNECTION—IID is exploring participation in Joint Transmission Projects from Phoenix to the IID system. Key to the Green Path Projects is the promise that it will help the utility industry with an important transition—the use and development of green energy that will help Imperial Valley and the Western United States reduce its carbon footprint. IID continues to support the Sunrise Powerlink Project’s viable alternative routes, such as the Southern route, which are able to achieve the same goal—to transport renewable energy from Imperial Valley to the coastal region—without the harmful impacts. Phoenix Notes IID has received multiple renewable export requests to serve load in Arizona in IID’s queue and are expecting more This works well with IID future resource plans to import energy from the East to serve load A new Palo Verde to Yuma 500 kV line project would comprise of construction of a 117-mile 500 kV Transmission Line from Hassayampa 500 kV switchyard to North Gila 500 kV switchyard A 67-mile line from North Gila to the Highline Substation Key to the Green Path Projects is the promise that it will help the utility industry with an important transition—the use and development of green energy that will help Imperial Valley and the Western United States reduce its carbon footprint. IID continues to support the Sunrise Powerlink Project’s viable alternative routes, such as the Southern route, which are able to achieve the same goal—to transport renewable energy from Imperial Valley to the coastal region—without the harmful impacts. Phoenix Notes IID has received multiple renewable export requests to serve load in Arizona in IID’s queue and are expecting more This works well with IID future resource plans to import energy from the East to serve load A new Palo Verde to Yuma 500 kV line project would comprise of construction of a 117-mile 500 kV Transmission Line from Hassayampa 500 kV switchyard to North Gila 500 kV switchyard A 67-mile line from North Gila to the Highline Substation

7. Photovoltaic (PV) IID offers incentives to make installing and generating electricity from PV systems more affordable for residential and commercial customers. One time rebate incentives based on System Rated Output up to 1 MW. Tiered Incentive levels Current incentive is Tier 3 of $2.42 per watt AC Each tier decreases by 7% each year or when target kW installation is met Began 2008 at $2.80 per watt and have already met our first and second year goals. They will ask you about net metering. That’s a big question out here.They will ask you about net metering. That’s a big question out here.

8. Photovoltaic (PV)Program Accomplishments On August 21, 2006, Gov. Arnold Schwarzenegger signed Senate Bill 1 the Million Solar Roofs Initiative which set a goal to install 3000mW of PV in California by 2017. SB1 states a utility must have a program in place beginning January 1, 2008, that offers incentives of at least $2.80 per watt, declining by 7% every year. Currently, the PV Solutions program is being re-evaluated to meet our compliance with SB1. On August 21, 2006, Gov. Arnold Schwarzenegger signed Senate Bill 1 the Million Solar Roofs Initiative which set a goal to install 3000mW of PV in California by 2017. SB1 states a utility must have a program in place beginning January 1, 2008, that offers incentives of at least $2.80 per watt, declining by 7% every year. Currently, the PV Solutions program is being re-evaluated to meet our compliance with SB1.

9. Other PV 2007 Not-for-Profit program Provided increased incentives for Not-for-Profits $4.25 per watt Five customers chosen for incentive 111 KW installed IID incentives totaled $472,175 You may wish to mention who participated in this effort.You may wish to mention who participated in this effort.

10. R&D Renewable Energy Demonstration Project Biogas generation at dairy 600 KW of generation fueled by biogas IID grant of $600,000 PV at Hospital 85 KW PV installation IID grant of $400,000

11. Potential Renewable Energy purchase program for customers Development of renewable energy resources Gary, you may be getting some push back on this slide. They will likely ask you why we are not looking at developing solar fields here on this end of the valley? You may want to scratch the “in the Imperial Valley” language.Gary, you may be getting some push back on this slide. They will likely ask you why we are not looking at developing solar fields here on this end of the valley? You may want to scratch the “in the Imperial Valley” language.

12. Questions?

13. Don’t Forget! IID has a complete portfolio of energy efficiency programs for customers Participation is encouraged