Sunpower Energy Storage System (ESS) on R3 occupancy building

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January08,2024

TO:FDSInspectorsandPlanCheckers

FROM:HaniG.Malki,SeniorFireProtectionEngineer FireDevelopmentServicesSection

SUBJECT: SUNPOWER (SV-BASE13-12-AandSV-ENERGY13-12-A)EnergyStorageSystem (ESS)onR3occupancybuilding

EffectiveJanuary08,2024,tofacilitatetheinstallationof SUNPOWER (SV-BASE13-12-Aand SV-ENERGY13-12-A)EnergyStorageSystems(ESS)onR3occupancybuildings,FireDevelopment Serviceshasprovidedrevisedguidelinesforinstallers.Theseguidelinesshallsupersedeall previouslyissuedguidelines.When SUNPOWER (SV-BASE13-12-AandSV-ENERGY13-12-A)ESS areinstalledinaccordancewithALLofthefollowingguidelines,anelectricalapplicationfromLADBS wouldnotneedadditionalFireDepartmentreview.

1.ESSbatteryunit(s)areforexteriorinstallation(s).

2.SV-BASE13-12-AandSV-ENERGY13-12-AESSunitsshallbeinstalledwithaminimumsideto sideseparationsof6”.SeparationtoanyotherESSunitmodelormanufacturershallbeminimum3’.

3.ESSunit(s)tobeminimum3’fromanywindowanddooropenings(e.g.,windows,doors),attic vents,dryervents,kitchenexhaust,underflooropenings,etc.).

●Dryerventsorkitchenexhaustswithin3’ofthesebatteriesshallbemetalwithafunctional damper

●Underfloorventilationswithin3'ofthesebatteriesaretohavemetalfinnedlouverscreens.

●Underflooraccesspanelswithin3'ofthesebatteriesshallhaveanoncombustiblefinish(e.g. 26-gaugesheetmetal)

●ESSmaybeinstalledwithin3’ofwindowsanddoorsleadingintogarageswhenthegarageis separatedfromthedwellingunitlivingspaceinaccordancewith“CRCR302.6”.

4.SurfacesofESSunit(s)tobenotlessthan3’fromthemainelectricalpanel.Provideaminimum5’ clearspaceoneachsideoftheESStoanyobstructionsthatextends18”beyondthewallsurface (rainbarrels,toolshed,a/cunits,hotwatertanks,etc…)toensurehosestreamaccess.

5.ProvideanESSdisconnect.ESSdisconnectshallbeplacednocloserthan3’fromESSandwithin lineofsiteofESS.Propersignage(s)shallread“ENERGYSTORAGESYSTEMACDISCONNECT”.

FDSInspectorsandPlanCheckers

Jan08,2024

6.Accesspathway(s):one3’wideminimumunobstructedpathway(e.g.,clearancefromair conditioningunits,parkedcars,rainbarrels,trees,heavyvegetation)toaccesstheESSunit(s)ortwo 30”unobstructedpathwaysareprovidedtoaccesstheESSunit(s)fromoppositedirections.

7.Ifequipmentissubjecttophysicaldamage(e.g.,motorvehiclesetc.),itshallbeprotectedwithan approvedbarriersystemcomplyingwith“CRCR328.8.3”.

**Provideanelevationdiagram(seesamplebelow)andasiteplanforallconditionslistedabove.**

Thismemoisonlyapplicabletothelistedmodelsaboveandmaybemodified,superseded,or rescindedatanytimewithoutnotice.

HaniG.Malki,Sr.FireProtectionEngineer FireDevelopmentServicesSection

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Sunpower Energy Storage System (ESS) on R3 occupancy building by Los Angeles Fire Department - Issuu