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Reg D 506(c)TRL43.2–4.8Tier IAnnounced

Vanguard Supercritical

Vanguard Supercritical

Water above its critical point, 45% thermal efficiency, and no steam generator. Announced, not yet open.

Above 22 MPa and 374 °C water stops distinguishing between liquid and gas, which means a reactor can drive a turbine directly with no steam generator and no boiling crisis to design around. Thermal efficiency rises from roughly 33% to 45%. The unresolved problem is materials: very few alloys tolerate supercritical water, radiation and time simultaneously.

James River Technology Park · Lynchburg, VAPre-applicationEscrow: Meridian Trust, N.A.
TRL 4 of 9, band 3.2 to 4.8, signed by Dr. Samuel Adeyemi, PhD Nuclear Engineering; ASME Section III reviewer, on Jun 25, 2026.See the evidence it rests on

$0 committed of $18,000,000

$0 released · 0% subscribed

Released to the issuerCommitted, held in escrowRemaining
Minimum
$25,000

$1,000 per unit

Target coupon
5.00%

Annual, fixed

Term
5 yr
Investors
0

Closes June 30, 2027 · 290 days remaining

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No payment processor is connected. The commitment flow runs end to end, through amount, agreement, signature and receipt, and records a simulated position rather than a charge.

Capital release schedule

0 of 2 rungs released

Release is structured as staged closings rather than withheld proceeds. Amounts shown are cumulative against the $0 committed to this offering.

  1. Alloy down-selection complete

    Awaiting certification
    TRL target
    TRL 4
    Cumulative release
    30% · $0
    Target
    November 30, 2026

    Verified by: Independent autoclave campaign; irradiation screening interim report

  2. Integral loop operating

    Pending
    TRL target
    TRL 6
    Cumulative release
    50% · $0
    Target
    December 31, 2031

    Verified by: Third-party witness test of the integral supercritical loop

Committed
$0

Held by the escrow agent on subscription

Released to the issuer
$0

NaN% of committed capital

Still escrowed
$0

Unlocks on the next certification

Escrow agent: Meridian Trust, N.A.. Certification is performed by an independent party with no economic interest in the release.