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Home My WebLink About2014-12-17-BOH-rpt (Solar Task Force Update)SUSTAENABLE LEXINGTON Solar Task Force Update Board of Health December 17, 2014 Objectives • Brief background on the municipal Solar Program in Lexington • Update of the current status and next steps at the Hartwell Site • Q &A December 17, 2014 Sustainable Lexington Committee Presentation 2 Solar Industry Overview Rapid growth rawer costs Higher efficienc Higher reliabi its Longer fife finance options A JAX 1 04400 201 3: LargestYear Ever 500 -00 SEA. US Solar , 4.7 GW U5 Solar installations — More than double 2011' s record pace 4 AX ai Resew December 17, 2014 Sustainable Lexington Committee Presentation 3 o a is Working in Massachusetts So r is well distributed throughout the Commonwealth, wit installations in 346 of 351 MA cities and towns. Over 20 municpaIiL es are hosting solar projects on town facilitie Massachusetts is wel ranked nation, Ily am in solar capacity i staffed in 2012 1 in .aumuative ilstailed capacity 3- in, commercial installations; olArest average commercial installation mists in total solar jobs: 87 in per capita solar jobs 67-11-r. * 1 i NN\ December 17, 2014 Sustainable Lexington Committee Presentation 4 Overview of the Program • Launched the Solar Taskforce in August of 2012. • Determined that Lexington had the potential to offset ~65% of it's electricity demand through solar (Rooftop and Ground - mount). • Further analysis determined that the most economically favorable approach would be to engage with a third party developer rather than constructing the facility ourselves. December 17, 2014 Sustainable Lexington Committee Presentation 5 Town / Developer Model • Standard practice has been for co unities to pa per with a Solar Developer. • The developer pays for the equip en t, cons uc ion, maintenance and insurance. • The town benefi s from buying low cost solar electricity — 20yr agreements are typical. With no ca ital invest Lexing on is cash flo pos on each kWh the sys c produces in Yea I. Sustainable Lexington Committee Presentation 6 The Transaction $ Bill Payment INUTEMAN HAZARDOUS HOUSEHO PRODUCTS FACILITY THE LEXINGTON POSTING FACILIT New Sustainable Lexington Committee Presentation 1 1 1 NSTAR EL EC TR /C Potential Solar Sites • DPW Hadley Building & Garage • Hartwell Avenue Landfill Site • School Buildings & Cary Library Sustainable Lexington Committee Presentation Program to date - Buildings Partnered with Ameresco Project Stakeholders DPF Structural & Operational Teams (Co -Lead) School Committee Energy Conservation Committee HDC Finance (Capital and Appropriations) Town Legal and Town Management Installed 1.1 MW over 6 buildings Economics range from $2.7M to $6.9M System will go live within 8 weeks! Sustainable Lexington Committee Presentation 9 Program to date - Hartwell • Partnered with Brightfields / Solar City • Project Stakeholders DPW (Co -Lead) Lexington Police MHHP /NERAC Conservation Commission / Board of Health Finance (Capital and Appropriations) Town Legal and Town Management Completed stage one of the site operational analysis. Consensus among the stakeholder team — Solar + Expanded Firing Range + existing Town uses will work! Range of 1.75MW — 3.5MW under consideration. Prelim. results indicate a strong economic benefit. December 17, 2014 Sustainable Lexington Committee Presentation 10 Existing Site Uses i 1 FYalat.y^ of Op.-ia'!vc ^1a7v1! ;Lk-.oe Figure 1 Current Site Uses 44... *. t. -;•*„. • t • J � ■ l�. jr., 1 • 1r, -+ y _1. rT-- `ti ti ''L tt ' _ • . - 4. Lt.*, „ , t V.14 41.x4-4,44-44 ,401 3 mcr,•aa V w f .41r43-14r. A'4! 4r - AM 12/19/14 DRAFT FOR REVIEW AND COMMENT 11 Conceptual Solar PV Installation SOLAR CANOP 502.3 kW DC 12/19/14 DRAFT FOR REVIEW AND COMMENT 12 Phase 1- Proposed Site Uses Note: All Lexington services maintained. Some reduction in space allocated to "Non- Lexington" materials. One option would be non - renewal / cancellation of Arlington curbside material (allowed for in the Arlington contract). F r • +nt -. .i .Y• * - - - _ - -` "yxr 4-,,a... r6 Ait Figure 2 Site Re- development (Phase 1) —v td r=!err 1 At ,2 IAAAtAtt1 i T 12/19/14 DRAFT FOR REVIEW AND COMMENT 13 Summary /Next Steps • Stakeholder group has reached consensus on the ability for solar to exist with current level of town services + a possible expanded firing range. Supporting analysis provided by trusted third party specialist. • Next Steps: • Submit ISA application to NSTAR to capture position in queue. Note application does not bind the town and is at the developers expense and risk. • Engaging with affected / interested stakeholder groups and supporting committees. • Con Com / Board of Health • Finance and Capital • Completing preliminary site operational / regulatory analysis — 2 scenarios. • Permit requirements / timeline • Plan for site changes and timeline • Continuing to develop economic case options for presentation to BOS in Janua 2015. December 17, 2014 Sustainable Lexington Committee Presentation 14