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China

Performance assessment of air-source heat pumps in office buildings

Scientists have analyzed the performances of two air-source heat pumps in two small office buildings in China during the heating season. They identified the instantaneous load of the building as a critical cause of low energy efficiency.

Chinese PV Industry Brief: Trina Solar posts strong 2023 earnings

Trina Solar has announced its 2023 earnings results, while Autowell has secured a supply contract from Longi Green Energy.

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GoodWe releases 60 kWh battery for commercial, industrial PV systems

GoodWe has developed a 60 kWh battery for commercial and industrial PV systems, featuring a compartment for its ET15-30kW inverter series.

Trina Storage releases 4.07 MWh energy storage system

Trina Storage has developed a 4.07 MWh energy storage system featuring its in-house 306 Ah lithium iron phosphate battery cells, configured with 10 racks of four battery packs.

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Chinese PV Industry Brief: CNNC launches inverter procurement tender

China National Nuclear Corp. (CNNC), a Chinese state-owned nuclear producer, has revealed plans to procure 1 GW of inverters, while Mubon High-Tech said it may scrap its plans to build a 5 GW heterojunction solar cell factory in China’s Anhui province.

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Deep-learning tech for dust detection in solar panels

Researchers from China and the UK have improved the Adam optimization algorithm to achieve better results in dust detection on PV panels. The optimized algorithm reportedly performed better than most common algorithms used for dust detection.

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Slenergy releases residential PV system package with heat pump

Slenergy has introduced a new residential PV system package featuring 425 W solar panels, a hybrid inverter, a high-voltage battery, and a Slenergy-branded heat pump. The package incorporates Internet-of-Things hardware for real-time data collection and intelligent control strategies.

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Weekend Read. COP: A solar flop?

Tripling clean energy generation capacity to 11 TW by 2030 was a leading pledge from the United Nations’ (UN) climate change conference in Dubai. With few details about infrastructure and energy storage and no clear PV targets, however, it is hard to judge the effectiveness of the 28th global Conference of the Parties (COP) meeting. Angela Skujins considers possible impacts for the solar industry.

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Coupling ground-source heat pumps with heat storage, borehole heat exchangers

Scientists from China have developed a novel optimization method for medium-depth ground source heat pumps, using an improved chaos particle swarm optimization. They coupled it with either a heat storage tank or a shallow borehole heat exchanger and found that both system typologies increase the heat pump’s coefficient of performance.

Chinese PV Industry Brief: GCL SI, Trina, Risen predict strong earnings for 2023

GCL System Integration (GCL SI), Trina Solar, and Risen Energy have all announced significant increases in revenue and net profit for 2023.

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