Pole-Mounted Lights (Barn Lights)

Proven UES Measure Proposal

Regional Technical ForumJanuary 22, 2014

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Today’s Agenda

• Measure Overview and History• Staff Highlighted Areas• Subject Matter Expert Interviews• UES Workbook

– Measure Descriptions– Measure Analysis and Input Details– Savings, Cost, and Cost Effectiveness

• RTF Staff Recommendation• Proposed Decision

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Measure Overview

• What is a “barn light?”

Photo from www.frostelectric.com.

Pole- or wall-mounted

Photocell-controlled

NEMA Type V dusk-till-dawn

fixture

Typically use 100-200W HID lamps (base case)Often owned and

maintained by utilities

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Measure History• 2011 BPA study investigated measure cost-

effectiveness, but the measure was not presented to RTF.

• The 2011 study included:

– Interviews with utility lighting Subject Matter Experts (SMEs) to determine base case equipment types and distributions across BPA territory

– Estimation of project costs

– Estimation of measure cost-effectiveness

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Measure History (continued)• In late 2013, RTF Small and Rural (SR) Subcommittee

decided to investigate barn lights as a potential UES measure

• Scope of the SR barn lights measure investigation:– Repeat SME interviews from 2011 to update/verify base

case equipment types and distributions– Expand SMEs interviewed to include BPA utilities and IOUs– Develop ProCost workbook using updated base case

characterizations, equipment costs, and EULs

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Staff Highlighted Areas• None.

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Subject Matter Expert (SME) Interviews

• SME’s interviewed in 2013:Individual Utility Region

Erin Hope* BPA E Washington

Dick Stroh* BPA Idaho

David Bopp Flathead Electric NW Montana

Jim Maunder Ravalli Electric W Montana

Vic Hubbard Franklin PUD S Washington

John Wilson BPA All BPA territory

Virginia Harman Glacier Electric NW Montana

Michael Lane Puget Sound Energy NW Washington

Mariah Schrotzberger Energy Trust of Oregon Oregon (IOU territories)

Steve Schauer Oregon Trail Electric Coop E Oregon

* SME was also interviewed as part of 2011 Barn Lights study conducted by BPA.

SME Interview Findings• 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 - 1000W, with the majority of the lamps on the lower end of the spectrum (100-250W).

• Two utilities interviewed reported that they were replacing some HID barn lights with induction or LEDs– Oregon Trail Electric Coop and Ravalli are replacing 100W HPS

lamps with 50W LEDs on a replace-on-burnout basis, and leveraging BPA Lighting Calculator incentive.

SME Interview Findings (continued)• All SMEs reported that utility-owned barn lights are

photocell-controlled.• There are currently no LED lamp replacements

available for replacement of 200W+ HIDs; the measure base case options are therefore limited to 100-175W HID lamps.

• Two SMEs reported already existing deemed incentive offerings for HID to LED retrofits.– 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.

SME Interview Findings (continued)• ‘Current Practice’ of barn light lamp replacement

– 100, 150, and 200W HID lamps• Replaced with similar 100, 150, and 200W HID lamps

on burnout• Some pilot projects replacing HID with LED, but not

enough for a Current Practice baseline adjustment

– 175W Metal Halide (MH) lamps• Replaced with similar 175W MH bulbs on burnout

– 175W Mercury Vapor (MV) lamps• Commonly replaced with 100W HPS lamps on burnout• For this reason, ‘Current Practice’ for a 175W MV lamp

assumed to be a 100W HPS lamp

Other 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 175W.– The Evluma LED is not ENERY STAR® or DLC®-approved but

has been reviewed and approved for incentives by BPA.

• Self-ballasted inductions lamps were specified in 2011 analysis; however, there are currently no UL-listed self-ballasted induction lamps available. – Self-ballasted induction lamps were replaced with remote-

ballasted induction lamps in ProCost analysis

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Measure Descriptions

• Go to the following sections in the Summary tab in the proposed measure workbook:– Measure Properties– Measure Identifiers

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Measure Analysis and Inputs Details

• Go to the following sections in the Summary tab in the proposed measure workbook:– Constant Parameters– Energy Savings Estimation Method, Parameters

and Data Sources– Measure Incremental Costs and Benefits– Measure Lifetime

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Savings, Cost, & Cost Effectiveness

• Go to the following sections in the Presentation tab in the proposed measure workbook:– Measure savings– Measure costs– Measure TRC B/C ratios

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RTF Staff Recommendation

• Approve the Pole-Mounted Light (Barn Light) UES as “Proven”

• Set the measure status to “Active”• Set the sunset date to January 31, 2016

– A two-year sunset period is proposed instead of a longer (e.g. five-year) period due to the rapidly-changing nature of LED costs and products

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Proposed Decision

“I _______________ move that the RTF:

• Approve the Pole-Mounted Light (Barn Light) measure as a “Proven” UES;

• Set the measure status to ‘Active;’ and

• Set the sunset date to January 31, 2016.”