Platte river power authority Efficiency programs

1. Platte river power authorityEfficiencyprograms Wyoming Utility Efficiency Exchange October 3, 2008

2. Platte River-City Relationship Residential Commercial Transmission Distri-bution Generation Industrial Estes Park Fort Collins Longmont Loveland • Platte River Power Authority • Sole Supplier • Joint Ownership / Equity • Local Governance Customers

3. DSM Drivers – unregulated • Public demand • Public acceptance of new resources • Cost effective (?) • No programs we have examined result in net cost savings • But, we expect to get ~90% of our DSM expenditures back in savings • Environmental benefits • Best option for CO2 mitigation

4. CO2 Mitigation Cost Estimates

5. Efficiency Program Drivers • Good for the environment • Reduced fuel use • Reduce emissions • Potential to delay new generation and transmission

6. Efficiency Program Drivers • Providing efficiency programs is expected of utilities • Programs offered by our peers & our customers notice • Xcel is increasing programs • Tri-State coops are starting programs • APPA increasing focus on efficiency

7. Efficiency Program Drivers • Customer service / community service • Help participating customers save money with lower electric bills • Particularly helpful as rates are increasing • Provides other benefits to participants • Better comfort (visual/thermal) • Improved productivity or sales • Spurs local investment • Sales of energy-efficient products and services • $3.2 million incentives  $8 - $12 million local investment • Provided by local trade allies

8. Program Selection Criteria • Quantifiable/measurable/verifiable savings • Savings must be “real” • Action must really reduce energy use • Programs must be able to influence customer decisions • Cost effective to customer • Market must exist / trade allies must exist • Cost effectiveness • Programs selected based on cost of conserved energy • Value of conserved energy also a consideration • Broad appeal • Among customers • Among member utilities

9. All Residential Efficiency Programs Estes Park LWAT - CFLs Small wind w/ GEO Green Power Fort Collins LWAT - CFLs Washers & Dishwashers Refrig recycling ZILCH AC Load Management ENERGY STAR Homes Home Performance with ES Solar PV w/GEO Green Energy Longmont LWAT - CFLs Washers & Dishwashers Refrig recycling ENERGY STAR Homes Solar PV w/GEO Green Energy Residential Energy Audit Program Neighborhood Sweep Loveland LWAT - CFLs Partnering with Power (AC load Management) GreenSwitch

10. Current Platte River Efficiency Programs • Commercial • Electric Efficiency Program (EEP) • Cooling Rebate Program • LIGHTENUP • Retrocommissioning Pilot (new) • Residential • Lighting with a Twist (LWAT) • Energy Star New Homes (new)

11. Platte River Efficiency Program Results

12. Key Efficiency Program Metrics:2008 Projections * 6% discount rate

13. Financial Impact – Wholesale Utility • Current efficiency projection (2009-2014) • ~$2 million/yr efficiency investment (~1.2% of revenue) • 93,000 MWh total savings in 2014 (2.6% energy savings) • Minor rate pressure • 1% higher rate in 2014 / 0.6% in 2020 • 2% less collected from member utilities in 2014 • Rest made up from increased surplus sales, avoided peaker fuel and purchases

14. How Much Can Utility Efficiency Do?

15. Thank you Wyoming Utility Efficiency Exchange October 3, 2008