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[ N [ A 6 Y~OLJ I10 NS amsidceation tut rnouming angle. -Another benefit is impruccd aesthetics of nc~ Pt' scsrcm as die panels kill be nunmtcd Flush kith the csisting roof instead of lihcd up o(( the runt. I~inalh; the tlus6 ^wuui arraugcnunt ~~~ill reduce she kind shear loads espcricnced be die Pt' scsrcm. phis studs recommends xnad~ing the PV' arras to the root using a uuu pencu~a~iug damp scs~em (suds as the 5-~f damp) that arc designed speciFlcxlk for suuidiug scam metal roots as those tinuul on the OSC buildings. 'Phis tope of nnxuviug scsrcm is annuum practice for PA' installation on standing scam roofs and has been used wccesstulh- for several scars. Orientation The dccn-icitc gcucration potential of a PV' panel is nttccicd be the paucPs pitch and be the cardinal direction [he pond is facing. 1'he USC is fortunate that the length of the buildings align in an cast-crest direction resulting in unc halt aF cacti root being tilted dirccrlc rc~ceards nc~ south o-hidi is nc~ oprinud cardinal direction to nui~imire autpW per PV' panel. Chc other half of nc~ roof is also un a nord~ south axis bu[ the pitch of the roof is a>ccards nc~ north. PV' ponds placed on [his section of the roof e-ould be lilted ~o~card the north reducing the per panel electrical owpw, unless a more cosdc tilted mounting scsrcm seas used. 'this studs focused on du~ south facing roof area io increase cost-effectiveness of the scsrcm ~~~hik also increasing aesthetic appeal of nc~ scsrcm ccirh a Flush mounted scsrcm. Initial System Sizing hhere arc aco distinct Been ieitc demands at the Cin~ of Plcasaniun OS(. site: sip cite operations buildings and one cc~a ter pump fur A[unicipal VC ell flu. B. 'Cherefore, nc~ representative PV' scsrcm ~cas designed as tR-u separate scstcros ~~-ith the YV' panels on nc~ Parts building ro feed nc~ OSC decn~ic meter and YV' panels un the and Streets, Se~cer, and \V~ater buildings to teed VC2~11 No. H electric meter. I~:S sized nc~ i~co PV' scstcros based on the a~~ailable unshaded root space, historical utilitc dectriatl use data, historical peak electrical demand data, and optimized financial return. 'I'hc recommended sizing tar the m-o separate PV' scstcros arc is located in fable L The PV" scsrcm eapaeitc is calculated using the Caliii>nria I~:ncrgc Commission P'1Y: rating and includes im crter l)C (direct current) to AC (eilernalingQlrrem) iUSSes. Table 2: Recommended PV System Sizes