Solar acquisitions and battery storage deals announced by Standard Solar, Wärtsilä, and Trina Storage
Standard Solar bought two solar projects in Washington state totaling 15.79 MWdc from OneEnergy Renewables, with completion expected in early 2027. Wärtsilä will provide a 35 MW/70 MWh battery system to WEB Aruba under a contract covering engineering, construction, software, and maintenance, with handover set for Q2 2028. Trina Storage will supply its Elementa 2 Pro system for the 50 MW/196 MWh AEJ Nozu battery project in Oita Prefecture, Japan.
Standard Solar’s purchase from OneEnergy Renewables covers the Palouse Junction and Cunningham sites in Washington. Palouse Junction is expected to produce 22,339 MWh yearly, with Franklin Public Utility District buying 10 MWac; Cunningham may generate 6,917 MWh yearly, with Big Bend Electric Cooperative purchasing 3 MWac. OneEnergy will handle engineering, procurement and construction.
Wärtsilä’s Aruba contract with WEB Aruba includes a two-hour 35 MW/70 MWh battery, software, construction and upkeep. It will join existing wind, solar and conventional generation, with handover planned for Q2 2028. Trina Storage will provide Elementa 2 Pro units for AEJ Nozu in Oita, Japan, a 50 MW/196 MWh project slated for Q3 2028.
Count? First paragraph: Standard(1) Solar’s2 purchase3 from4 OneEnergy5 Renewables6 covers7 the8 Palouse9 Junction10 and11 Cunningham12 sites13 in14 Washington15. Palouse16 Junction17 is18 expected19 to20 produce21 22,33922 MWh23 yearly24, with25 Franklin26 Public27 Utility28 District29 buying30 10 31 MWac32; Cunningham33 may34 generate35 6,91736 MWh37 yearly38, with39 Big40 Bend41 Electric42 Cooperative43 purchasing44 3 45 MWac46. OneEnergy47 will48 handle49 engineering50, procurement51 and52 construction53. Second: Wärtsilä’s1 Aruba2 contract3 with4 WEB5 Aruba6 includes7 a8 two-hour9 35 10 MW/70? maybe count as one? 11 MWh12 battery13, software14, construction15 and16 upkeep17. It18 will19 join20 existing21 wind22, solar23 and24 conventional25 generation26, w
These projects may affect local electricity customers, utilities, and workers in Washington, Aruba, and Oita by adding renewable generation and storage capacity. Storage could improve grid reliability and support greater use of wind and solar, potentially lowering reliance on conventional generation during peak periods. Communities near project sites may see construction jobs and infrastructure changes, while ratepayers and grid operators could benefit from more flexible power supplies. Outcomes may depend on timely completion, costs, and how well the systems integrate with existing networks. Count: These1 projects2 may3 affect4 local5 electricity6 customers7, utilities8, and9 workers10 in11 Washington12, Aruba13, and14 Oita15 by16 adding17 renewable18 generation19 and20 storage21 capacity22. Storage23 could24 improve25 grid26 reliability27 and28 support29 greater30 use31 of32 wind33 and34 solar35, potentially36 lowering37 reliance38 on39 conventional40 generation41 during42 peak43 pe