Construction begins on 347-MW SunRoper solar project in Texas
Built WorldOCI Energy and Arava Power's Wharton County project targets ERCOT delivery by December 2027
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Overview
Updated 1 hour agoShovels went into the ground September 1 for SunRoper, a 347-MW solar project in Wharton County, Texas, about 60 miles southwest of Houston. When it comes online in December 2027, it will deliver power to the Electric Reliability Council of Texas, the state's grid operator.
The project is a 50-50 joint venture between OCI Energy, the U.S. arm of South Korea's OCI Holdings, and Israel's Arava Power. It will sell electricity to an unnamed Fortune 100 company under a 20-year power purchase agreement. OCI describes its shift from developing and selling projects to owning and operating them as a move toward recurring revenue.
Why it matters
Adds 347 MW to one of the nation's fastest-growing power markets, where AI data centers are pushing electricity demand sharply higher.
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People Involved
Organizations Involved
U.S. independent power producer owned by South Korea's OCI Holdings, developing solar and storage projects across the country.
Israeli energy developer and equal partner in the SunRoper joint venture with OCI Energy.
EPC contractor responsible for constructing the SunRoper array to completion in 2027.
Nonprofit operator of the Texas power grid, serving most of the state's electricity load.
Timeline
June 2021 December 2027
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Expected commercial operation
Upcoming MilestoneSunRoper is scheduled to start delivering power to ERCOT under its 20-year PPA with a Fortune 100 buyer.
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Construction officially underway
Latest ConstructionConstruction starts on the 347-MW SunRoper array, with December 2027 commercial operation confirmed.
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Groundbreaking ceremony held
ConstructionOCI Energy, Arava Power, ING and WHC mark the start of construction at the Wharton County site.
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Arava buys into La Salle project
AcquisitionArava acquires a 50% stake in OCI's 670 MW La Salle solar project in Texas, expected online in 2028.
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SunRoper financing closes
FinancingOCI and Arava reach financial close on construction financing arranged by ING, with support from BHI and Bank Hapoalim.
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Arava acquires OCI's SUNRAY project
PartnershipArava Power buys OCI Energy's 270 MW SUNRAY project in Uvalde County, starting their Texas collaboration.
Historical Context
2 moments from history that rhyme with this story — and how they unfolded.
Texas wind buildout and CREZ transmission lines (2008-2013)
Texas built about 3,600 miles of new transmission lines, known as Competitive Renewable Energy Zones, to connect West Texas wind farms to the Dallas, Houston and San Antonio demand centers. The state become the U.S. leader in wind generation within a few years.
Wind capacity in Texas grew rapidly, cutting wholesale power prices in some regions.
Transmission investment unlocked a renewable boom that later carried over to solar, with ERCOT adding gigawatts of utility-scale solar through the 2010s and 2020s.
SunRoper is the latest chapter of the same pattern: Texas building renewables to serve fast-growing demand centers, with grid interconnection the recurring constraint. The project sits near Houston specifically to plug into that demand.
California's solar duck curve (2013-2020)
As California's rooftop and utility solar fleet expanded, grid operators saw midday solar oversupply followed by a steep evening ramp as the sun set. The California Independent System Operator charted this as a 'duck curve' of net load.
Operators learned to manage solar's variable output, often by ramping gas plants in the evening.
Battery storage became the standard complement to solar, smoothing the ramp and shifting midday output to peak hours.
SunRoper's 347 MWdc nameplate does not mean continuous output; generation rises and falls with sunlight. As solar share grows in ERCOT, Texas faces the same intermittency trade-offs California managed, which is why storage is being paired with many Texas solar projects.
