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Why German energy provider Rabot Energy is selling a 2 kWh AC-only battery, no solar required
Rabot Energy launched Rabot Flow, a 2.12 kWh plug-and-play home battery for German apartment renters that uses dynamic tariffs to charge when grid electricity is cheap and discharge during price spikes.
Sold at cost and requiring no electrician or smart meter, the Marstek-based battery promises around €120–€130 in annual savings while helping Rabot boost customer retention and grid flexibility.
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GoSun unveils solar-chargeable electric tractor
GoSun and Moonrider have launched a 27 hp electric tractor powered by a 24 kWh LFP battery, with optional 1.1 kW solar charging. The four-wheel-drive tractor offers about five hours of runtime and features a 750 kg hitch lift capacity, rear PTO and connected functions.
Rocket Lab launches 31.5%-efficient inverted metamorphic space solar cell
Rocket Lab has released its high-efficiency IMM Apex solar cell, eliminating costly and scarce germanium substrates while achieving 31.5% beginning-of-life conversion efficiency.
The cell is reportedly 40% lighter than legacy triple-junction products and is designed as a drop-in replacement, improving spacecraft power-to-weight performance while reducing supply-chain risks.
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Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls
Hitachi has introduced its Y-series EcoCute CO2 heat pump water heaters in Japan, with 370-liter and 460-liter models set to launch from November 2026.
The upgraded range adds expanded support for daytime electricity tariffs and PV-linked energy management, alongside a five-year manufacturer warranty.
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Alpitronic unveils 1 MW EV charging system
Italian charging infrastructure manufacturer Alpitronic has developed a 1 MW distributed DC charging system capable of serving up to eight electric vehicles simultaneously. At a demonstration in Berlin, the system delivered more than 600 kW to the new Mercedes-AMG GT 4-Door Coupé.
Clivet launches VRF air-to-air heat pumps with inverter-free PV integration
Clivet’s CVT9 VRF range offers 25.2–45 kW per module and up to 90 kW in two-module configurations. The system reportedly delivers SEER up to 8.58 and SCOP up to 4.93.
Integrated PV management enables direct 400–600 V DC solar input without a conventional PV inverter,
SolarWindow launches 0.85 mm-thick, self-adhesive solar film
SolarWindow has launched ElectroFlex, an ultra-thin, flexible, self-adhesive solar product for flat and curved surfaces. The new product features 24.4% cell efficiency and targets transportation, aerospace, buildings and other weight-sensitive applications.
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