Grid Brief ENDE

Tonight's energy stories are about who carries the price risk

Three of this evening's items look unrelated - a storage procurement in New York, a jet-fuel subsidy in central Europe, and rooftop solar prices in Brazil. Each is really an answer to the same question: when the price of something new is uncertain, who takes the risk that it turns out higher or lower than expected?

New York answers with a contract for difference. Under NYSERDA's Index Storage Credit, eight battery projects selected on 23 September get a guaranteed strike price for energy sold into the NYISO markets. If they earn less, the state tops them up; if they earn more, they pay the difference back. The developer is protected on the downside, the ratepayer is compensated on the upside, and the state carries the variance in between.

Germany, Austria and Luxembourg answer with an intermediary. In their €2.12 billion e-SAF mechanism, producers bid to sell and buyers bid to buy, an intermediary signs long contracts with the first and short ones with the second, and public money covers the gap. The duration mismatch - factories need years of revenue, airlines buy fuel month by month - is absorbed by the middleman, and the size of the subsidy is discovered in the auction rather than fixed in advance.

Brazil's distributed solar market shows what happens when nobody absorbs the risk. Greener's data put system prices up 7% in the first half and kit prices for small systems up 18.3%, while only a third of sales used financing - the lowest share in its series. Households are paying the higher price directly, and new connections fell 16%.

Tonight's energy stories are about who carries the price risk
Tonight's energy stories are about who carries the price risk — Grid Brief

What the comparison shows

The two public schemes do not remove price risk; they move it to a party that can hold it across many projects and years, and they cap what that party pays by using competition. That is why both use auctions: an auction is how a buyer of last resort avoids overpaying for the certainty it provides.

Where no such party exists, the risk sits with the smallest actor in the chain, and demand becomes more sensitive to every price movement. That is not an argument that every market needs a subsidy. It is a reminder that when a market slows, the first question to ask is who was carrying the price risk - and whether they still can.

Written by Victoria Shinder.