1. December 12, 2013 RTF UES: Barn Lights

2. 2 Agenda Measure Overview Measure Investigation History SME Feedback UES Analysis Cost Analysis EUL Analysis

3. 3 Measure Overview LED and Induction Lamps for Barn Lights: Pole or wall mounted exterior lighting Residential and non-residential applications Often owned and maintained by utilities −Analysis focused on utility-owned barn lights Proposed as a small-saver UES measure Scope of measure: −LEDs: Lamp only replacement and bypass of HID ballasts −Remote-Ballasted Induction: Replacement of HID lamp and ballasts

4. 4 Measure Investigation History 2011 BPA study investigated measure cost-effectiveness, but the measure was not presented to RTF. The 2011 study included: −Interviews with utility lighting SMEs to determine basecase equipment types and distributions across BPA territory −Estimated project costs −Estimated measure cost-effectiveness Scope of current Barn Lights measure investigation: −Repeat SME interviews from 2011 to update/verify basecase equipment types and distributions Expand SMEs interviewed to include BPA utilities and IOUs −Develop ProCost workbook using updated basecase characterizations, equipment costs, and EULs

5. 5 SMEs Interviewed IndividualUtilityRegion Erin Hope*BPAE Washington Dick Stroh*BPAIdaho David BoppFlathead ElectricNW Montana Jim MaunderRavalli ElectricW Montana Vic HubbardFranklin PUDS Washington John WilsonBPAAll BPA territory Virginia HarmanGlacier ElectricNW Montana Michael LanePuget Sound EnergyNW Washington Mariah SchrotzbergerEnergy Trust of OregonOregon (IOU territories) Steve SchauerOregon Trail Electric CoopE Oregon * SME was also interviewed as part of 2011 Barn Lights study conducted by BPA. See Appendix for list of questions SMEs were asked

6. 6 2011 Study Findings Verified Majority of utility-owned barn lights are High Pressure Sodium, with smaller numbers of Mercury Vapor and Metal Halide lamps in service. SMEs did not put a quantitative estimate on the percent distribution between the lamp types. Instead, many SMEs said “most” lamps are HPS. SMEs reported existing HID lamps with wattages of 100 - 1,000W, with the majority of the lamps on the lower end of the spectrum (100-250W). All but one SME reported their utilities were not actively replacing HID barn lights with induction or LEDs. −Oregon Trail Electric Coop is replacing 100W HPS lamps with 50W LEDs on a replace-on-burnout basis, and leveraging BPA Lighting Calculator incentive.

7. 7 2011 Study Findings Verified All SMEs reported that utility-owned barn lights are photocell-controlled. Labor costs reported for completing equipment retrofits were not significantly different than the 2011 study’s findings. There is a lack of third party data that supports an EUL for LEDs. −Manufacturer claims were used in analysis, backed up by ENERGY STAR calculator that uses LM-80 test result inputs. There are currently no LED lamp replacements available for replacement of 250W+ HIDs. −The measure basecase options are therefore limited to 100-200W HID lamps.

8. 8 New Findings There is only one LED lamp on the market (the Evluma ® 50W Clearlight Beacon LED) that is a suitable replacement for HID barn lights up to 200W. −The Evluma LED is not ENERY STAR ® or DLC ® -approved but has been reviewed and approved for incentives by BPA. Estimated equipment costs were updated for HID, LED, and induction lamps with nominal changes from 2011 cost estimates. Self-ballasted inductions lamps were specified in 2011 analysis; however, there are no UL-listed self-ballasted induction lamps available. −Self-ballasted induction lamps were replaced with remote-ballasted induction lamps in ProCost analysis SMEs from BPA and IOUs reported already existing deemed incentive offerings for HID to LED retrofits. −Two SMEs mentioned they thought the creation of an RTF barn light measure would create confusion with the existing incentive offerings, and they would prefer an RTF barn lights measure was not created.

9. 9 UES Analysis Measure Identifiers IdentifierPossible ValuesFurther Explanation and Sources Baseline Lamp Wattage ≥ 100W, ≥150W, ≥200W Typical Lamp Nominal Wattages include 100W, 150W, 175W and 200W. Calculations include impact of ballasts on actual power draw. Proposed Lamp Nominal Wattage ≤40W, ≤50W, ≤60W, ≤80W Typical Lamp Nominal Wattages include 40W, 50W, 60W and 80W. Calculations include impact of ballasts on actual power draw. Lamp Type Self-ballasted LED, Remote-ballasted Induction Lamp type impacts both equipment and labor costs. Constant Parameters ParameterPossible ValuesFurther Explanation and Sources Annual Hours of Operation 4,380 hours/year SME interviews state that photocell control is standard. 4,380 hrs/yr estimate assumes an annual average of 12 hours/day of daylight.

10. 10 UES Analysis Measure Identifiers Savings Component Analysis Approach Primary Parameter / Adjustment Factor Baseline Baseline Possible Values Efficient Case Possible Values Baseline Further Explanation and Sources Efficient Case Further Explanation and Sources All Direct Input Power Reduction (Baseline Input Power- Proposed Input Power)/1,000 *Annual Hours of Operation Input Power Pre- Conditions 115W 42W, 50W, 63W, 84W Estimate based on interviews with SMEs. Intended to cover a range of HID lamp types including: High Pressure Sodium (HPS), Mercury Vapor (MV) and Metal Halide (MH). Input wattages includes additional 14-15% to account for ballast losses. Estimate based on manufacturer spec data from ballast manufacturers. Estimates based on interviews with SMEs. LED values supported by LM-79 test data for qualifying product. Induction values supported by manufacturer spec data. Induction input wattage includes additional 5% to account for ballast losses. Estimate based on phone conversation with equipment distributor. 171W 42W, 50W, 63W, 84W 230W50W, 63W, 84W

11. 11 Cost Analysis Analysis included a conversion from 2013$ to 2006$. Values above represent 2006$. Lamp Type Material Cost Labor Cost Incremental Material Cost (Compared to 100W HID) Incremental Material Cost (Compared to 150W HID) Incremental Material Cost (Compared to 200W HID) Incremental Labor Cost 40W Remote-ballasted Induction$70.39$56.18$55.30$57.93NA$31.68 60W Remote-ballasted Induction$87.99$56.18$72.90$75.53$74.25$31.68 80W Remote-ballasted Induction$114.39$56.18$99.30$101.93$100.65$31.68 50W LED$220.00$35.06$204.91$207.53$206.25$10.56 100W HID (MH & HPS)$15.09$24.50NA 150W HID (MH & HPS & MV)$12.47$24.50NA 200W HID (MH & HPS)$13.75$24.50NA

12. 12 EUL Analysis Results HID: ca. 21,000 hours or 4.79 years LED: 70,000 hours or 16 years Induction: 100,000 hours or 20 years Measure Identifiers Analysis ApproachBaselineData SourcesUncertainty Estimate All Divided manufacturer rated lifetime (hrs) divided by annual hours of operation (hrs/year) Pre-Conditions Manufacturer Rated Lifetime on Spec Sheets SME: Dick Stroh, BPA IESNA, 'The Lighting Handbook, 10th Edition', Section 7.35 (for induction lamps) Medium

13. 13 Results Summary Category Measure Life Site Savings (kWh) Site Savings (therms) Capital Cost ($/unit) PV Per. Repl. Cost ($/unit) TRC B/C Ratio 60W Remote-ballasted Induction_Replacing_200W HID20.0731.50.0105.9-66.510.7 40W Remote-ballasted Induction_Replacing_150W HID20.0472.60.089.6-87.88.6 80W Remote-ballasted Induction_Replacing_200W HID20.0639.50.0132.3-66.57.6 80W Remote-ballasted Induction_Replacing_150W HID20.0529.60.0133.6-87.86.4 40W Remote-ballasted Induction_Replacing_100W HID20.0319.70.087.0-70.86.1 60W Remote-ballasted Induction_Replacing_150W HID20.0380.60.0107.2-87.85.9 50W LED_Replacing_200W HID16.0788.40.0216.8-49.85.0 50W LED_Replacing_150W HID16.0748.60.0218.1-72.44.8 60W Remote-ballasted Induction_Replacing_100W HID20.0227.80.0104.6-70.83.8 50W LED_Replacing_100W HID16.0284.70.0215.5-70.82.0 80W Remote-ballasted Induction_Replacing_100W HID20.0135.80.0131.0-70.82.0

14. 14 Discussion

15. 15 Appendix: SME Questions Bulb Type What types of lamps are currently used in barn lights/pole mounted lights in your area? (e.g. mercury vapor, high pressure sodium, etc.)? What are the proportion of each lamp type (e.g. 75% MV, 25% HPS)? What type of bulb (size, shape) is it? If different lamp types (MV, HPS, etc.) are used, could you estimate the distribution? (% of each) Power What is the listed wattage of the bulb(s)? Do you know the power usage of the entire fixture? (including ballast) Does the power consumption change over time? For example, do older lamps consume more or less power than new ones? If so, can you quantify this change? Control How are the lights controlled? (e.g. photocell, timer, some other way) Could you estimate the hours of operation? Are they controlled by the utility or the private residences? Replacement How often are bulbs replaced? (e.g. end of life, early retirement) How much does it cost to replace a lamp? Do utilities get products wholesale? Who is the supplier? Are volume discounts realized? Labor cost? What size crew? Travel time? Time spent on site? Material cost? Lamp? Other components?

16. 16 Appendix: SME Questions Customers How many barn lights are you responsible for? How many customers are served by your utility? What is the main purpose of these lights? (e.g. general outdoor lighting, security) Are these used mainly by residences, commercial customers, etc.? Is the individual customer responsible for paying for the energy consumed by this light? High efficiency lamps Are you replacing any barn lights with higher efficiency lights? If so, What type? Would you replace the lamp, lamp & ballast or the entire fixture? What wattage? How much do they cost? Do utilities get products wholesale? What is there expected lifetime? What is the retrofit process? What is the labor requirement of the process? Material cost of the process, in addition to lamp cost? If not, Do you know of an LED replacement or other high efficiency bulb that would be well suited for this application?