Utility‑Scale Solar & BESS for a New Energy Era
For years, renewable energy was framed as an environmental choice, something we built to help the planet.
We used to build renewables for the planet. Now, we build them because they’re the fastest way to generate power.
The energy landscape in both Australia and the United States has shifted from ideology to operational necessity. Coal plants are retiring earlier than scheduled, electricity demand is rising, and grids need new, dispatchable capacity right now. In this environment, large-scale solar and battery energy storage systems (BESS) have become the most practical, scalable, and timely solutions available.
A decade ago, renewable projects were experimental. Today, they are among the quickest major energy assets to plan, approve, and build, often in months instead of years. There are no decade-long development timelines, no billion-dollar fuel supply chains, and no geopolitical exposure, just proven engineering, modular construction, and speed-to-grid. This is why developers, utilities, and governments are prioritising solar + storage as core infrastructure: to keep the lights on, stabilise energy costs, and meet surging demand.
What’s remarkable and a little ironic is that by focusing on generation first, the environmental benefits come automatically. Every MW of solar or storage built for capacity or reliability also reduces emissions, strengthens grid stability, and cuts exposure to imported fuels. Terje Pilskog, CEO of Scatec, highlights that thanks to rapidly falling costs; solar panels down 66%, batteries down 58%, renewable + storage is no longer niche; it is becoming the backbone of grid capacity “Now renewables can be used in many more situations and can take a larger … responsibility in a power system.” (reuters.com/2025/scatec‑renewables‑role)
The Data: Solar + Storage Leading in AU & U.S
This shift isn’t just theoretical, it’s happening in real time.
United States
- 32.5 GW of new utility-scale solar capacity expected in 2025, alongside 18.2 GW of battery storage, representing roughly 81% of all new generation (EIA, 2025)
- Utility-scale battery storage expected to nearly double to 65 GW by end of 2026, up from ~28 GW in early 2025 (Reuters, 2025)
- Q2 2025: 5.6 GW of battery storage installed, including 4.8 GW utility-scale (Business Wire, 2025)
Australia
- Renewables supplied 39.4% of total electricity in 2023 (PV Magazine Australia, 2024)
- By the end of 2024, 8.7 GW / 23.3 GWh of large-scale battery storage was under construction (PV Magazine Australia, 2025)
- Q3 2025: 2,936 MW added to the National Electricity Market (NEM) a 150% YoY increase (PV Magazine International, 2025)
- Australia now ranks among the top-three utility-scale battery markets globally (SolarMT, 2025)
As Daniel Westerman, CEO of AEMO, emphasises; “We now know what it takes … it is entirely feasible to run our large grids on 100% renewable energy, provided there are sufficient investments in system‑security assets.” (aemo.com/clean-energy-summit‑2025)
Renewables have matured. “Green” was the starting point, but today solar + BESS are built to generate power first, and the climate benefits are a welcome side effect. They are:
- Fastest generation assets to deploy
- Easiest to scale
- Lowest-risk in delivery and operation
- Most effective replacement for retiring fossil generation
- Critical for stabilising modern grids
Both in Australia and the U.S., renewables are no longer optional , they are core infrastructure, valued for speed, scalability, reliability, and cost certainty.
