24 Hour Solar Power
Today · Sydney
DENSO says its Athens Tennessee factory has been running a new onsite solar yard since May. More than 10,000 modules, 5.25 MWac nameplate, enough to offset about 14% of the plant's yearly power use. The release does not name a battery. Daytime solar without storage only covers a slice of what the plant uses while the sun is up.
Energy Vault's Stoney Creek battery near Narrabri has NSW planning approval: 125 MW / 1,000 MWh, eight hours of storage, Enervest to deliver, a 14-year LTESA through AEMO Services. Site works aimed at Q4 2026, commercial ops H1 2028. Hours matter here — this is a long grid box with a state contract, not a four-hour warehouse quote.
Germany's Federal Network Agency awarded 32 projects totaling 480 MW in its latest innovation tender. Every winner was a solar plant paired with storage. Winning prices ran from €0.0450 to €0.0540 per kWh, averaging €0.0514. That is a market signal for co-located storage, not a quote for your warehouse roof.
Wood Mackenzie says a four-hour battery is now cheaper than an open-cycle gas turbine in all 43 markets where it modelled both. That is good news. The comparison is with a peaker that runs a few hours at a time, and a battery only delivers what something else has put into it.
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