‘Incredible’ low prices for renewables-plus-storage in Xcel’s solicitation

Share on linkedin
LinkedIn
Share on twitter
Twitter
Share on reddit
Reddit
Share on facebook
Facebook
Share on email
Email

Median bids received by US utility Xcel Energy in a solicitation for energy resources for energy storage paired with solar came in at US$9 per megawatt lower than the previously observed record.

At the end of 2017, Minnesota-headquartered Xcel held an ‘All source solicitation’ for generation assets to be incorporated into its long-term resource planning, issued in late August and with bids received by 28 November. Xcel called the big response to the solicitation “unprecedented”, with some 430 individual proposals submitted, representing 238 projects in total, and 350 of the 430 were renewable energy projects. A similar solicitation in 2013 drew just 55 proposals.

The seeming discrepancy in numbers was due to multiple bids being received for some projects. Some of these ‘duplicated’ bids may have differed in their structure, whether that be the proposed type or length of PPA or project ownership structure being put forward on each bid. Out of those 238 submitted projects, Xcel said 99 of them call for the utility to take some level of ownership stake.

Xcel was at pains to point out that due diligence processes have not been completed on any of the bids and some could still contain so-called “fatal flaws”. Nonetheless, the company offered its listing of RfP responses by technology. Giving neither company names nor bid details, Xcel’s report gave the median bid prices received in each technology class.

Wind with battery storage: 11 bids were received, representing 5,700MW across eight projects, for a total 5,097MW minus duplicate bids. Bids were priced at US$21 per MWh.

Wind and solar with battery storage: 7 bids were received, with 4,048MW, with a corresponding number of projects and megawatts. Bids were priced at US$30.60 per MWh.

Solar PV with battery storage: 87 bids, for 16,725MW, for a total 59 projects and 10,813MW minus duplicates. Bids were priced at US$36 per MWh.

Limited bid price details offered by Xcel Energy. Image: Xcel Energy.

Former GTM Research head analyst, now an advisor to the firm, Shayle Kann, tweeted that the bid prices dropped considerably further than the lowest known solar-plus-storage price to date in the US. That was US$45 per MWh, a “historically low price” as reported by Energy-Storage.News when Arizona utility Tucson Electric Power (TEP) announced it in May last year. Kann said the bid prices came with “a lot of caveats”, but were “incredible nonetheless”.

While the Arizona auction process saw storage added to wind or solar projects for around US$15 per MWh additional cost added to the PPA price, the energy storage portion of bids in the Xcel Energy solicitation appeared to have added just US$3 to US$7 per MWh more to the median bid prices revealed.

Read Next

May 27, 2022
Programmes to provide home energy storage solutions to low-income homes and businesses have been launched in Washington D.C and Connecticut by Electriq Power and Generac/PosiGen, respectively.
May 25, 2022
Renewable energy developer Kearsarge Energy expects a 20-50% revenue uplift for a solar-plus-storage project in the New England ISO market by using Customized Energy Solutions’ optimisation platform.
May 19, 2022
Co-located storage is growing as a proportion of the UK market with 7.2GW of projects in the pipeline, but structuring deals and offtake agreements presents a complex challenge according to an expert source.
May 18, 2022
Lithium-ion battery recycler Li-Cycle has opened its third recycling facility, in Arizona.
May 17, 2022
Battery energy storage system (BESS) capacity in Italy reached 587MW/1,227MWh in the first three months of 2022, of which 977MWh is distributed energy storage, according to the national renewables association, ANIE Rinnovabili.

Most Popular

Email Newsletter