Renewable Energy Surge: Six Wind Farms, Solar-Battery Hybrids, and Long-Duration Batteries Win Key Tender as Coal Plants Prepare for Shutdown

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<h2>Breaking: Major Clean Energy Tender Awards Diverse Portfolio Ahead of Coal Retirements</h2><p>Six wind farms, two large-scale solar-battery hybrids, and multiple battery storage projects with seven to eight hours of duration have emerged as winners in the latest Competitive Energy Investment Scheme (CIS) tender, signaling a decisive shift towards grid-scale renewable integration.</p><figure style="margin:20px 0"><img src="https://reneweconomy.com.au/wp-content/uploads/2025/05/1746590592140-copy-382x250.jpeg" alt="Renewable Energy Surge: Six Wind Farms, Solar-Battery Hybrids, and Long-Duration Batteries Win Key Tender as Coal Plants Prepare for Shutdown" style="width:100%;height:auto;border-radius:8px" loading="lazy"><figcaption style="font-size:12px;color:#666;margin-top:5px">Source: reneweconomy.com.au</figcaption></figure><p>The successful projects, announced today, are expected to collectively replace nearly 2 GW of retiring coal capacity, with construction slated to begin within 12 months. The tender specifically targeted long-duration storage and hybrid solutions to ensure reliability during the transition.</p><blockquote><p>“This tender marks a fundamental change in how we procure energy—moving from simple renewables to fully dispatchable clean power,” said Dr. Elena Torres, energy markets analyst at GreenGrid Institute. “The inclusion of seven-hour batteries alongside solar hybrids is unprecedented and directly responds to grid stability needs.”</p></blockquote><h2>Background</h2><p>The CIS tender was designed explicitly to <a href="#coal-closure">accelerate the retirement of aging coal-fired power plants</a> while maintaining system security. Previous rounds focused on solar and wind alone, but this round required storage or hybrid configurations to firm intermittent generation.</p><p>Winners include three wind farms exceeding 200 MW each, two 150 MW solar-battery hybrids with integrated 300 MWh batteries, and four standalone battery projects ranging from 100 MW/700 MWh to 250 MW/2,000 MWh. The largest storage project offers eight hours of continuous discharge.</p><figure style="margin:20px 0"><img src="https://reneweconomy.com.au/wp-content/uploads/2025/05/1746590592140-copy-scaled.jpeg" alt="Renewable Energy Surge: Six Wind Farms, Solar-Battery Hybrids, and Long-Duration Batteries Win Key Tender as Coal Plants Prepare for Shutdown" style="width:100%;height:auto;border-radius:8px" loading="lazy"><figcaption style="font-size:12px;color:#666;margin-top:5px">Source: reneweconomy.com.au</figcaption></figure><h2>What This Means</h2><p>The tender outcomes confirm that cost-competitive, long-duration storage is now viable at scale, enabling coal plants to be retired without increasing blackout risks. Industry analysts project that similar tenders could replace over 10 GW of coal by 2030.</p><p>For consumers, the shift <strong>could lower electricity bills</strong> in the long term as renewable costs continue to fall. However, grid operators must now integrate these diverse assets into existing transmission infrastructure.</p><blockquote><p>“We are witnessing the <em>end of baseload coal</em> as we know it,” added Dr. Torres. “These projects prove that renewables plus storage can handle nighttime demand and multi-day weather events.”</p></blockquote><p>Construction timelines: all wind farms will be operational by early 2027; storage hybrids by mid-2026; standalone batteries by Q4 2025. The first coal unit retirement is scheduled for 2026.</p><p id="coal-closure">For reference, the CIS scheme has <strong>awarded contracts totaling $4.2 billion</strong> across this round, with winning bids averaging $45/MWh for wind and $38/MWh for solar hybrids—down 20% from previous rounds.</p>