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“No proven commercial model” for co-located solar and storage pr

2024-02-29

(PV-TECH: ByWill Norman)


“There is a roadblock in getting interconnections [for renewables] passed, and people are looking for alternatives…we need more storage on the grid more quickly,” said Thomas Horgan, systems engineering manager at GE Vernova, at the Energy Storage Summit 2024 yesterday (20th February) in London, speaking about the potential of co-located energy storage and solar projects.

The panel – Where are the Commercial Opportunities for Co-Location? – was almost full to capacity on the afternoon of the first day of the Summit. In their opening remarks, panellists including Horgan said that co-location offers a possible solution to grid bottlenecks and capacity shortages. Horgan also pointed to the instability that greater renewables penetration can inflict on grid networks; in this regard, “storage solves a lot of problems”, he said.

However, the business case for co-located projects is less simple than that. Rupert Newland, CEO of UK renewables technology provider Arenko Group, said that co-located projects are something of an unknown quantity at the moment. “There isn’t a proven commercial model across this sector,” he said.

This, he continued, is because of the inherent differences between solar or wind and battery energy storage systems (BESS). Not only different technologies, but different supply chains, financing models, use cases and technical parameters present themselves.

“People recognise the benefits [of co-located projects]”, he said, whether it’s shared infrastructure and grid connections or the gradual increase of revenues and capacity that can be generated from a co-located project, “but I think the actual commercial model is still not very well-understood”.

Arenko announced work on its first co-located solar-plus-storage project in the UK last year, a 50MW BESS co-located with a 55MW solar PV plant. The company is offering optimisation services through a partnership with French renewables developer Engie. Newland spoke with our sister site Energy-storage.news in October about its existing co-located wind and storage projects (premium access), and how the projects could provide a blueprint for co-location.