infrastructure and energy alternatives, llcby : / s / ian schapironame : ian schapirotitle : authorized signatoryoaktree power opportunities fund iii delaware, l. p. by : oaktree fund gp, llcits : general partnerby : oaktree fund gp i, l. p. its : managing memberby : / s / ian schapironame : ian schapirotitle : authorized signatoryby : / s / peter jonnaname : peter jonnatitle : authorized signatoryacknowledged and agreed this 26th day of march 2021 : infrastructure and energy alternatives, inc. by : / s / gil melmanname : gil melmantitle : executive vice president, general counsel, corporate secretary & chief compliance officerm iii sponsor i llcby : / s / mohsin y. meghjiname : mohsin y. meghjititle : managing member infrastructure and energy alternatives, llc by : / s / ian schapiro name : ian schapiro title : authorized signatory oaktree power opportunities fund iii delaware, l. p. by : oaktree fund gp, llc its : general partner by : oaktree fund gp i, l. p. its : managing member by : / s / ian schapiro name : ian schapiro title : authorized signatory by : / s / peter jonna name : peter jonna title : authorized signatory acknowledged and agreed this 26th day of march 2021 : infrastructure and energy alternatives, inc. by : / s / gil melman name : gil melman title : executive vice president, general counsel, corporate secretary & chief compliance officer m iii sponsor i llc by : / s / mohsin y. meghji name : mohsin y. meghji title : managing member kirkland & ellis llp333 south hope street, 29th floor los angeles, ca 90071 attn : tana ryan, p. c. facsimile : # # # - # # # - # # # # email : tryan @ kirkland. comkirkland & ellis llp 601 lexington avenue new york, ny 10022attn : michael kimfacsimile : ( 212 ) 446 - 4900email : michael. kim @ kirkland. comm iii partners, lp130 west 42nd str., 17