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Technology

New refrigerant may improve coefficient of performance of air-source heat pumps by up to 21%

Developed by a Chinese research group, the novel refrigerant is made of a mixture of carbon dioxide (CO2) and a non-flammable hydrofluoroolefin. It has slightly higher costs compared to conventional compounds, but its creators claims these costs could be significantly reduced with large-scale industrial production.

Surging electricity demand puts pressure on utility planning

ICF report says retiring legacy fossil fuel plants will be more challenging.

Using surplus PV power for seasonal underground thermal storage

Scientists have proposed a new system that uses surplus PV energy in the spring and the autumn to charge up underground thermal energy storage for later use in the summer and winter. They have simulated it on a school facility in Seoul, with a few optional configurations for thermal storage. Power savings were up to 39%.

Software will complete first-stage interconnection studies in one day, firm says

As a grid operator works to automate its phase 1 study process for interconnecting solar, storage and other generating projects, the firm developing the automation software says the study process will take just one day.

DOE calls for faster interconnection of distributed solar and storage at lower cost

Solar and storage systems smaller than 50 kW would receive an interconnection agreement instantly when requesting one, under 2030 targets in a draft Department of Energy roadmap.

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Startup offers AI-based software solution to predict component failure in utility-scale inverters

Infinrel says its Energy Kardio Graph solution can sample small electrical perturbations on the input and output of the inverter at MHz scale and enable insight into the actual operation of the inverter on its switching cycle basis.

Solar cell makers can learn from giant clams, claim Yale researchers

Yale University scientists are seeking industry collaborators to explore stretchy material for panels and growing algae on modules, as well as other efficiency-boosting possibilities inspired by giant clam behavior.

Sunrise brief: Maxeon solar modules detained at border

Also on the rise: U.S. clean energy installations grow 91% year-over-year in Q2. Flexible interconnection at far lower cost and nearly twice the speed. And more.

Flexible interconnection at far lower cost and nearly twice the speed

Substantial cost and time savings are possible with flexible “connect and manage” interconnection of utility-scale solar and solar-plus-storage projects, two studies have found.

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Assessing viability of agrivoltaics in corn fields

Researchers from Purdue University have studied the impact of traditional photovoltaic systems and agrivoltaics deployed in corn croplands. They conclude agrivoltaics could offer a viable strategy to ease the current tradeoff between energy production, greenhouse gas emissions, food production and farm profitability.