    <SEC-DOCUMENT>0001104659-24-047344-index.html : 20240415
    <SEC-HEADER>0001104659-24-047344.hdr.sgml : 20240415
    <ACCEPTANCE-DATETIME>20240415170853
    ACCESSION NUMBER:		0001104659-24-047344
    CONFORMED SUBMISSION TYPE:	S-4/A
    PUBLIC DOCUMENT COUNT:		14
    FILED AS OF DATE:		20240415
    DATE AS OF CHANGE:		20240415

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AltC Acquisition Corp.
    		CENTRAL INDEX KEY:			0001849056
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		S-4/A
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-274722
    		FILM NUMBER:		24845391

    	BUSINESS ADDRESS:
    		STREET 1:		640 FIFTH AVENUE
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    		BUSINESS PHONE:		212-380-7500

    	MAIL ADDRESS:
    		STREET 1:		640 FIFTH AVENUE
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-4/A
    <SEQUENCE>1
    <FILENAME>tm2324337-20_s4a.htm
    <DESCRIPTION>S-4/A
    <TEXT>
    Document 1 - file: tm2324337-20_s4a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.3
    <SEQUENCE>2
    <FILENAME>tm2324337d21_ex4-3.htm
    <DESCRIPTION>EXHIBIT 4.3
    <TEXT>
    Document 2 - file: tm2324337d21_ex4-3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.19
    <SEQUENCE>3
    <FILENAME>tm2324337d21_ex10-19.htm
    <DESCRIPTION>EXHIBIT 10.19
    <TEXT>
    Document 3 - file: tm2324337d21_ex10-19.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.2
    <SEQUENCE>4
    <FILENAME>tm2324337d21_ex23-2.htm
    <DESCRIPTION>EXHIBIT 23.2
    <TEXT>
    Document 4 - file: tm2324337d21_ex23-2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.3
    <SEQUENCE>5
    <FILENAME>tm2324337d21_ex23-3.htm
    <DESCRIPTION>EXHIBIT 23.3
    <TEXT>
    Document 5 - file: tm2324337d21_ex23-3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>fc_structure-bw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: fc_structure-bw.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>fc_mergersub-bw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: fc_mergersub-bw.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>fc_postclosing-bw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: fc_postclosing-bw.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ph_strategically-4clr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: ph_strategically-4clr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>ph_streamlined-4clr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: ph_streamlined-4clr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>ph_deployment-bwlr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: ph_deployment-bwlr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>lg_oceantomorjsheld-4c.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: lg_oceantomorjsheld-4c.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>sg_gregcampanella-bw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: sg_gregcampanella-bw.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>tm2324337d21_ex10-19img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: tm2324337d21_ex10-19img001.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>