Hybrid Solar‑Battery Projects Lead Global Energy Shift

Hybrid solar‑battery assets are now the default model for new utility‑scale solar in Australia

Australia’s National Electricity Market (NEM) has committed 100 % of all utility‑scale solar slated for 2027‑28 to be paired with a battery energy storage system (BESS), according to Fluence. The country’s first greenfield hybrid – the 98 MW Quorn Park solar farm plus a 20 MW/40 MWh battery – has become the template for delivering flexible, reliable power at scale.

The Quorn Park project, built by Potentia Energy in western New South Wales, demonstrates how co‑locating solar panels and a BESS behind a single transmission point can turn intermittent sunshine into a dispatchable power source. By integrating the two assets under an advanced control platform, the hybrid can smooth output, provide ancillary services, and defer costly grid upgrades.

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A true hybrid integrates solar and storage behind one grid connection, not just side‑by‑side sites

A “co‑location” merely places two assets on the same land with separate grid points. In a true hybrid, the solar farm and battery share one transmission connection and are managed by sophisticated software that coordinates output in real‑time. This enables “firming” – guaranteeing a steady power output even when the sun dips – and opens revenue streams from energy arbitrage, capacity markets, and grid‑forming services.

Fluence’s AI‑driven Mosaic platform automates these decisions, reacting to market signals every five minutes. The result is a single, dispatchable power plant that can meet specific grid needs, such as supporting data centres that require 24/7 reliability.

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Australia’s market design and policy make it the ideal test‑bed for hybrids

Australia combines three unique factors that accelerate hybrid adoption:

1. World‑leading solar resources – high irradiance drives massive rooftop and utility‑scale installations.
2. A dynamic market (the NEM) that rewards multiple revenue streams for storage, including frequency control and capacity payments.
3. Supportive policies such as the Capacity Investment Scheme (CIS), which directly incentivises clean, dispatchable capacity.

Fluence’s Jeff Monday explains that this convergence has turned the NEM into a global prototype, showing how hybrids can maintain grid stability while renewable penetration rises.

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Economic upside: hybrids boost project viability and can shave billions off grid upgrades

Hybrid assets create value in three ways:

• Revenue diversification – beyond selling electricity, hybrids earn from ancillary services, capacity markets, and AI‑optimised trading.
• Reduced curtailment – the battery stores excess solar, turning what would be wasted energy into sellable power.
• Deferred infrastructure – by providing localized grid support, hybrids can postpone or avoid expensive transmission upgrades.

Fluence mitigates the technical risk of integrating generation and storage through its advanced modelling and the Mosaic AI, helping developers meet the strict Generator Performance Standards (GPS) set by the Australian Energy Market Operator (AEMO).

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What the numbers tell us: battery‑to‑solar ratios and potential CO₂ savings

• The Quorn Park hybrid pairs 20 MW of battery power with 98 MW of solar, a ratio of ≈0.20 MW of storage per MW of solar (or 0.40 MWh of energy per MW).
• Scaling this ratio to a typical Israeli 10 MW solar farm would add a 2 MW/4 MWh battery.
• Using Israel’s average solar yield of 1,800 kWh/kWp / year, a 10 MW farm would generate ≈18 GWh annually.
• At the commercial tariff of ₪0.41/kWh, that translates to ≈₪7.4 million of revenue per year.
• The same output would avoid ≈9,000 tonnes of CO₂ each year (0.5 kg CO₂ per kWh), equivalent to planting ≈450,000 trees.

These calculations illustrate the tangible economic and environmental upside for Israel if hybrid models are adopted.

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What it means for Israel

Israel’s renewable targets – 20 % by 2025 and 30 % by 2030 – require not just more solar capacity but also grid‑friendly solutions. The country’s typical commercial tariff (₪0.41/kWh) and installation cost (₪2,200/kWp) mean that adding a modest battery (≈0.2 MW per MW solar) can significantly improve project cash flows by reducing curtailment and unlocking ancillary‑service revenue.

Moreover, the deferred grid‑upgrade savings align with Israel’s limited transmission capacity, especially in the south where solar yields are highest (≈2,200 kWh/kWp). By emulating Australia’s hybrid blueprint, Israeli developers could accelerate the rollout of reliable, dispatchable solar power, supporting data‑centre growth and enhancing energy security.

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The road ahead: faster batteries, smarter software, and expanding markets

Fluence expects the next five years to be defined by software‑driven intelligence rather than just chemistry improvements. As AI workloads and data‑centre demand surge, hybrids will become the go‑to solution for providing smooth, 24/7 power.

Australia’s experience will likely inform reforms in other markets, including the upcoming NEM Review and post‑2030 designs, as regulators worldwide seek to value the full suite of services that integrated BESS can deliver.

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What investors should watch

Investors need three assurances to back hybrid projects:

1. Policy certainty – stable, long‑term rules that value storage services.
2. Technology reliability – proven hardware and AI‑driven control platforms.
3. Execution track record – on‑time delivery and safety compliance, hallmarks of Fluence’s 50 GWh of deployed storage globally.

When these pillars align, hybrid solar‑battery assets can deliver predictable, high‑margin returns while powering the clean‑energy transition.

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What it means for Israel (summary)

Hybrid solar‑battery projects can help Israel meet its renewable targets, boost project economics, and reduce grid‑upgrade costs. By adopting the Australian model—a 0.2 MW battery per MW solar—Israeli farms could generate ~18 GWh/year, earn ~₪7 million annually, and cut CO₂ emissions by ~9 kt.

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For further reading, see the original interview with Fluence’s Jeff Monday in pv‑magazine.