Joulent
Technology-driven developer of multi-gigawatt energy infrastructure powering US AI data centers.
Energy
📍 Houston, TX
Founded 2023
Current Valuation
$5.0B
as of 2026-Q3
UNICORN
Joulent is a Houston, Texas–based developer of multi-gigawatt energy infrastructure and industrial power platforms built to meet AI data-center electricity demand. In July 2026 National Grid Ventures took a 35% stake for $1.75B — valuing Joulent at roughly $5B — to advance its high-voltage project pipeline and modular generation. Its first project, Kilby, will deliver ~2.67 GW to a Microsoft-operated data-center campus under a 20-year power purchase agreement.
Company Profile
Last Round
Strategic minority investment — $1.8B (Jul 2026) · Lead: National Grid Ventures
Fundraising Status
Strategic minority investment · $1.8B · this month
privateTotal raised $1.8B
Latest Funding Round
| Round | Amount | Date | Lead Investor | Post-Money |
|---|
| Strategic minority investment | $1.8B | Jul 2026 | National Grid Ventures | — |
Founders & Key People
Chris James
Investors
National Grid Ventures
Products
- High-voltage large-load power projects
- Modular generation infrastructure
- Kilby project (~2.67 GW for a Microsoft data center)
Competitors
Crusoe · Sable / behind-the-meter developers · Bloom Energy · GE Vernova · NRG Energy
energydata-center-powerai-infrastructuregas-generationpower-ppa
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-Q3. Refreshed quarterly.