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

2. Platte River-City Relationship
Residential
Commercial
Transmission
Distri-bution
Generation
Industrial
Platte River Power Authority
Sole Supplier
Joint Ownership / Equity
Local Governance
Estes Park
Fort Collins
Longmont
Loveland
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
Fort Collins
Longmont
Loveland
LWAT - CFLs
Small wind w/ GEO
Washers & Dishwashers
Partnering with Power (AC load Management)
Green Power
Refrig recycling
GreenSwitch
ZILCH
AC Load Management
ENERGY STAR Homes
Residential Energy Audit Program
Home Performance with ES
Neighborhood Sweep
Solar PV w/GEO
Green Energy

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
Projected cost
Gross energy savings (MWh)
Net-to-Gross Ratio
Net energy savings (MWh)
Cost per annual kWh
Assumed life
Cost per kWh* (lifetime)
LIGHTENUP
$762,454
7,718
0.78
6,020
$0.13 11
$0.016
EEP
$385,828
6,051
0.85
5,143
$0.08 12
$0.009
CRP
$42,964 88 75
$0.58 15
$0.059
LWAT
$420,000
10,608
0.50
5,304 8
$0.013
TOTALS
$1,611,246
24,465
0.68
16,542
$0.10
10.4
IRP Goal: avg year
$1,170,000
6,360
$0.18 10
$0.025
* 6% discount rate

13. Financial Impact – Wholesale Utility
Current efficiency projection ( )
~$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
Benefits
Present Worth $
$ Eff
Increased surplus sales
$10.7M
$1.13
Avoided peaker fuel
$4.7M
$0.50
Avoided purchased power
$1.1M
$0.12
Potential to delay G&T cap -
TOTALS
$16.5M
$1.75
Costs
Present Worth $
$ Eff
Efficiency programs
$9.4M
$1.00
Lost city wholesale revenue
$7.3M
$0.77
TOTALS
$16.7M
$1.77

14. How Much Can Utility Efficiency Do?

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