<SEC-DOCUMENT>0001628280-26-014101.txt : 20260303
<SEC-HEADER>0001628280-26-014101.hdr.sgml : 20260303
<ACCEPTANCE-DATETIME>20260303175331
ACCESSION NUMBER:		0001628280-26-014101
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260301
FILED AS OF DATE:		20260303
DATE AS OF CHANGE:		20260303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Wirtz Christopher P.
		CENTRAL INDEX KEY:			0001979735
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38090
		FILM NUMBER:		26717158

	MAIL ADDRESS:	
		STREET 1:		9811 KATY FREEWAY
		STREET 2:		SUITE 700
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Solaris Energy Infrastructure, Inc.
		CENTRAL INDEX KEY:			0001697500
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL & GAS FILED MACHINERY & EQUIPMENT [3533]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9651 KATY FREEWAY
		STREET 2:		SUITE 300
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024
		BUSINESS PHONE:		(281)501-3070

	MAIL ADDRESS:	
		STREET 1:		9651 KATY FREEWAY
		STREET 2:		SUITE 300
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Solaris Oilfield Infrastructure, Inc.
		DATE OF NAME CHANGE:	20170207
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1772578408.xml
<DESCRIPTION>FORM 4
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    <periodOfReport>2026-03-01</periodOfReport>

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    <issuer>
        <issuerCik>0001697500</issuerCik>
        <issuerName>Solaris Energy Infrastructure, Inc.</issuerName>
        <issuerTradingSymbol>SEI</issuerTradingSymbol>
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        <reportingOwnerId>
            <rptOwnerCik>0001979735</rptOwnerCik>
            <rptOwnerName>Wirtz Christopher P.</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>9651 KATY FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77024</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Accounting Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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                <value>Class A Common Stock</value>
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                <transactionCode>A</transactionCode>
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                <transactionPricePerShare>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
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            <transactionDate>
                <value>2026-03-01</value>
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            <transactionCoding>
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            <transactionAmounts>
                <transactionShares>
                    <value>2206</value>
                    <footnoteId id="F3"/>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                    <value>36785</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted Stock Award granted pursuant to the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan on the date indicated. The award vests in three equal installments on the first three anniversaries of the grant date.</footnote>
        <footnote id="F2">Reflects the vesting and settlement of shares that relate to multiple Performance-Based Restricted Stock Unit (PSU) awards granted pursuant to the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan. The PSUs which were originally granted on March 1, 2024 and March 1, 2025 vested and were settled based on the Issuer's level of achievement with respect to the applicable performance goals.</footnote>
        <footnote id="F3">Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards and Performance-Based Restricted Stock Awards.</footnote>
        <footnote id="F4">Includes 17,791 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Christopher M. Powell, Attorney-in-Fact</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
