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ECP Control Co, LLC is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Sunnova GP is the general partner of Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\"). ECP GP is the general partner of Energy Capital Partners GP III, LP, which is the general partner of each of (i) Energy Capital Partners III-A, LP, (ii) Energy Capital Partners III, LP, (iii) Energy Capital Partners III-B, LP, (iv) Energy Capital Parnters III-D, LP, and (v) Energy Capital Partners III-C, LP (together with ECP Sunnova, the \"Funds\"). The Funds are the managing members of ECP Sunnova Holdings GP, LLC, which is the general partner of ECP Sunnova Holdings."}],"balance_after":10911664,"source":{"system":"sec-edgar","filing":"0000899243-21-042733","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924321042733/doc4.xml","form_type":"4"}},{"id":2941263,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-12-17T16:35:08.000Z","date":"2020-12-15","kind":"sale","acquired":false,"shares":3000000,"price":40.8,"value":122400000.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein are held of record by ECP Sunnova Holdings, LP (\"ECP Sunnova Holdings\"). ECP Control Co, LLC is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Sunnova GP is the general partner of Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\"). ECP GP is the general partner of Energy Capital Partners GP III, LP, which is the general partner of each of (i) Energy Capital Partners III-A, LP, (ii) Energy Capital Partners III, LP, (iii) Energy Capital Partners III-B, LP, (iv) Energy Capital Parnters III-D, LP, and (v) Energy Capital Partners III-C, LP (together with ECP Sunnova, the \"Funds\"). The Funds are the managing members of ECP Sunnova Holdings GP, LLC, which is the general partner of ECP Sunnova Holdings."}],"balance_after":16911664,"source":{"system":"sec-edgar","filing":"0000899243-20-034293","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924320034293/doc4.xml","form_type":"4"}},{"id":3012120,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-10-06T20:00:10.000Z","date":"2020-10-02","kind":"sale","acquired":false,"shares":5000000,"price":28,"value":140000000.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Consists of: 274,199 shares of Common Stock held by Energy Capital Partners III, LP, 9,230,501 shares of Common Stock held by Energy Capital Partners III-A, LP, 1,114,733 shares of Common Stock held by Energy Capital Partners III-B, LP, 3,816,033 shares of Common Stock held by Energy Capital Partners III-C, LP, 4,709,639 shares of Common Stock held by Energy Capital Partners III-D, LP (collectively, the \"ECP Funds\") and 766,559 shares of Common Stock held by Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"ECP Control Co, LLC (\"ECP Control Co\") is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is (i) the general partner of Energy Capital Partners GP III, LP (\"ECP Fund GP\") and (ii) the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Fund GP is the general partner of each of the ECP Funds and ECP Sunnova GP is the general partner of ECP Sunnova. Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio are the managing members of ECP ControlCo and share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. As such, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the Common Stock reported herein, but each disclaims any such beneficial ownership except to the extent of their pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"In connection with the transactions reported herein, the reporting persons have agreed with BofA Securities, Inc. (the \"Broker\") not to dispose of any shares of Common Stock for a period of 30 days without the Broker's consent."}],"balance_after":19911664,"source":{"system":"sec-edgar","filing":"0000899243-20-027679","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924320027679/doc4.xml","form_type":"4"}},{"id":3053184,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-08-19T16:17:26.000Z","date":"2020-08-18","kind":"sale","acquired":false,"shares":7229760,"price":24.125,"value":174417960.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Consists of: 343,053 shares of Common Stock held by Energy Capital Partners III, LP, 11,548,364 shares of Common Stock held by Energy Capital Partners III-A, LP, 1,394,653 shares of Common Stock held by Energy Capital Partners III-B, LP, 4,774,273 shares of Common Stock held by Energy Capital Partners III-C, LP, 5,892,272 shares of Common Stock held by Energy Capital Partners III-D, LP (collectively, the \"ECP Funds\") and 959,049 shares of Common Stock held by Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"ECP Control Co, LLC (\"ECP Control Co\") is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is (i) the general partner of Energy Capital Partners GP III, LP (\"ECP Fund GP\") and (ii) the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Fund GP is the general partner of each of the ECP Funds and ECP Sunnova GP is the general partner of ECP Sunnova. Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio are the managing members of ECP ControlCo and share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. As such, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the Common Stock reported herein, but each disclaims any such beneficial ownership except to the extent of their pecuniary interest therein."}],"balance_after":24911664,"source":{"system":"sec-edgar","filing":"0000899243-20-022921","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924320022921/doc4.xml","form_type":"4"}},{"id":3087901,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-07-07T16:22:30.000Z","date":"2020-07-06","kind":"sale","acquired":false,"shares":6211533,"price":15.7575,"value":97878231.2475,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Consists of: 442,612 shares of Common Stock held by Energy Capital Partners III, LP, 14,899,882 shares of Common Stock held by Energy Capital Partners III-A, LP, 1,799,404 shares of Common Stock held by Energy Capital Partners III-B, LP, 6,159,843 shares of Common Stock held by Energy Capital Partners III-C, LP, 7,602,303 shares of Common Stock held by Energy Capital Partners III-D, LP (collectively, the \"ECP Funds\") and 1,237,380 shares of Common Stock held by Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"ECP Control Co, LLC (\"ECP Control Co\") is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is (i) the general partner of Energy Capital Partners GP III, LP (\"ECP Fund GP\") and (ii) the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Fund GP is the general partner of each of the ECP Funds and ECP Sunnova GP is the general partner of ECP Sunnova. Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio are the managing members of ECP ControlCo and share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. As such, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the Common Stock reported herein, but each disclaims any such beneficial ownership except to the extent of their pecuniary interest therein."}],"balance_after":32141424,"source":{"system":"sec-edgar","filing":"0000899243-20-018631","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924320018631/doc4.xml","form_type":"4"}},{"id":3452699,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2019-07-31T18:00:47.000Z","date":"2019-07-29","kind":"exercise","acquired":false,"shares":927109,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On July 29, 2019, the Issuer and Sunnova Energy Corporation completed a merger (the \"Merger\") pursuant to which the Issuer became a parent holding company of Sunnova Energy Corporation, and each issued and outstanding share of common stock and preferred stock of Sunnova Energy Corporation was converted into one share of common stock and preferred stock of the Issuer, respectively. As a result of the Merger, each stockholder of Sunnova Energy Corporation became a stockholder of the Issuer holding the same proportional equity interests as immediately prior to the Merger. In addition, the Issuer completed a 1-for-2.333 reverse stock split immediately prior to completion of the initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Following the transactions reported herein, consists of: 528,150 shares of Common Stock held by Energy Capital Partners III, LP, 17,779,378 shares of Common Stock held by Energy Capital Partners III-A, LP, 2,147,150 shares of Common Stock held by Energy Capital Partners III-B, LP, 7,350,272 shares of Common Stock held by Energy Capital Partners III-C, LP, 9,071,496 shares of Common Stock held by Energy Capital Partners III-D, LP (collectively, the \"ECP Funds\") and 1,476,511 shares of Common Stock held by Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"ECP Control Co, LLC (\"ECP Control Co\") is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is (i) the general partner of Energy Capital Partners GP III, LP (\"ECP Fund GP\") and (ii) the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Fund GP is the general partner of each of the ECP Funds and ECP Sunnova GP is the general partner of ECP Sunnova. Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio are the managing members of ECP ControlCo and share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. As such, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the Common Stock reported herein, but each disclaims any such beneficial ownership except to the extent of their pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":397387},"source":{"system":"sec-edgar","filing":"0000899243-19-020692","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924319020692/doc4.xml","form_type":"4"}},{"id":3452698,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2019-07-31T18:00:47.000Z","date":"2019-07-29","kind":"exercise","acquired":false,"shares":88550351,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On July 29, 2019, the Issuer and Sunnova Energy Corporation completed a merger (the \"Merger\") pursuant to which the Issuer became a parent holding company of Sunnova Energy Corporation, and each issued and outstanding share of common stock and preferred stock of Sunnova Energy Corporation was converted into one share of common stock and preferred stock of the Issuer, respectively. As a result of the Merger, each stockholder of Sunnova Energy Corporation became a stockholder of the Issuer holding the same proportional equity interests as immediately prior to the Merger. In addition, the Issuer completed a 1-for-2.333 reverse stock split immediately prior to completion of the initial public offering."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Following the transactions reported herein, consists of: 528,150 shares of Common Stock held by Energy Capital Partners III, LP, 17,779,378 shares of Common Stock held by Energy Capital Partners III-A, LP, 2,147,150 shares of Common Stock held by Energy Capital Partners III-B, LP, 7,350,272 shares of Common Stock held by Energy Capital Partners III-C, LP, 9,071,496 shares of Common Stock held by Energy Capital Partners III-D, LP (collectively, the \"ECP Funds\") and 1,476,511 shares of Common Stock held by Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"ECP Control Co, LLC (\"ECP Control Co\") is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is (i) the general partner of Energy Capital Partners GP III, LP (\"ECP Fund GP\") and (ii) the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Fund GP is the general partner of each of the ECP Funds and ECP Sunnova GP is the general partner of ECP Sunnova. Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio are the managing members of ECP ControlCo and share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. As such, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the Common Stock reported herein, but each disclaims any such beneficial ownership except to the extent of their pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":37955570},"source":{"system":"sec-edgar","filing":"0000899243-19-020692","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924319020692/doc4.xml","form_type":"4"}},{"id":3452697,"issuer":{"id":79576,"kind":"organization","name":"Sunnova Energy International Inc.","symbol":"NOVA"},"owners":[{"id":75476,"kind":"organization","name":"ECP ControlCo, LLC","position":1,"cik":"0001707921","reported_name":"ECP ControlCo, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87669,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LLC","position":2,"cik":"0001621292","reported_name":"ENERGY CAPITAL PARTNERS III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87670,"kind":"organization","name":"Energy Capital Partners GP III, LP","position":3,"cik":"0001697506","reported_name":"Energy Capital Partners GP III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87671,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III, LP","position":4,"cik":"0001594546","reported_name":"ENERGY CAPITAL PARTNERS III, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87672,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-A, LP","position":5,"cik":"0001594547","reported_name":"ENERGY CAPITAL PARTNERS III-A, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87673,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-B, LP","position":6,"cik":"0001594548","reported_name":"ENERGY CAPITAL PARTNERS III-B, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87674,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-C, LP","position":7,"cik":"0001594549","reported_name":"ENERGY CAPITAL PARTNERS III-C, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":87675,"kind":"organization","name":"ENERGY CAPITAL PARTNERS III-D, LP","position":8,"cik":"0001594550","reported_name":"ENERGY CAPITAL PARTNERS III-D, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133963,"kind":"organization","name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","position":9,"cik":"0001783494","reported_name":"Energy Capital Partners GP III Co-Investment (Sunnova), LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":133964,"kind":"organization","name":"Energy Capital Partners III (Sunnova Co-Invest), LP","position":10,"cik":"0001679310","reported_name":"Energy Capital Partners III (Sunnova Co-Invest), LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-07-31T18:00:47.000Z","date":"2019-07-29","kind":"exercise","acquired":true,"shares":38352957,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On July 29, 2019, the Issuer and Sunnova Energy Corporation completed a merger (the \"Merger\") pursuant to which the Issuer became a parent holding company of Sunnova Energy Corporation, and each issued and outstanding share of common stock and preferred stock of Sunnova Energy Corporation was converted into one share of common stock and preferred stock of the Issuer, respectively. As a result of the Merger, each stockholder of Sunnova Energy Corporation became a stockholder of the Issuer holding the same proportional equity interests as immediately prior to the Merger. In addition, the Issuer completed a 1-for-2.333 reverse stock split immediately prior to completion of the initial public offering."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the completion of the Issuer's initial public offering, each share of Series A convertible preferred stock and Series C convertible preferred stock automatically converted into shares of the Issuer's Common Stock on a 2.333-for-1 basis (after giving effect to the reverse stock split consummated by the Issuer)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Following the transactions reported herein, consists of: 528,150 shares of Common Stock held by Energy Capital Partners III, LP, 17,779,378 shares of Common Stock held by Energy Capital Partners III-A, LP, 2,147,150 shares of Common Stock held by Energy Capital Partners III-B, LP, 7,350,272 shares of Common Stock held by Energy Capital Partners III-C, LP, 9,071,496 shares of Common Stock held by Energy Capital Partners III-D, LP (collectively, the \"ECP Funds\") and 1,476,511 shares of Common Stock held by Energy Capital Partners III (Sunnova Co-Invest), LP (\"ECP Sunnova\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"ECP Control Co, LLC (\"ECP Control Co\") is the managing member of Energy Capital Partners III, LLC (\"ECP GP\"), which is (i) the general partner of Energy Capital Partners GP III, LP (\"ECP Fund GP\") and (ii) the managing member of Energy Capital Partners GP III Co-Investment (Sunnova), LLC (\"ECP Sunnova GP\"). ECP Fund GP is the general partner of each of the ECP Funds and ECP Sunnova GP is the general partner of ECP Sunnova. Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio are the managing members of ECP ControlCo and share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. As such, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the Common Stock reported herein, but each disclaims any such beneficial ownership except to the extent of their pecuniary interest therein."}],"balance_after":38352957,"source":{"system":"sec-edgar","filing":"0000899243-19-020692","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1783494/000089924319020692/doc4.xml","form_type":"4"}}]}