Aira launches new heat pumps for residential buildings
The new heat pumps use propane (R290) as the refrigerant and have a seasonal coefficient of performance of 4.7. The maximum temperature outlet is 70 C and the maximum cooling power spans from 8 kW to 13 kW.
California has become rooftop solar and batteries NEM-esis
The transition to California’s new net metering, ‘NEM 3.0,’ regime was justified, in part, as a way to support residential energy storage installations but the state policy has pushed rooftop solar off a cliff.
Must Energy launches residential hybrid inverter
The Chinese manufacturer claims its new inverter has a maximum efficiency of 97.5% and a European efficiency rating of 97%.
Brazil hits 40 GW milestone
Solar accounted for 17.4% of Brazil’s electricity mix last week. PV systems up to 75 kW in size represent around 50% of the total capacity.
Transcritical CO2 air source heat pump for residential buildings
A research group designed a solar-assisted CO2 heat pump system that can reportedly achieve a lower levelized cost of energy than gas boilers in residential building in the United Kingdom. The system has the potential to achieve a coefficient of 5.1.
Weco launches new residential battery
The new product has a capacity of 5.4 kWh and is scalable up to 60 kWh. It features a depth of discharge of 100% and a rated charge-discharge voltage of 450 V.
Top US states for solar deployment in 2023
The Solar Energy Industries Association (SEIA) has released an overview of the top US states for solar installations last year.
Weather records tumble across U.S. as Atlantic pressure keeps eastern skies clear
In a new weekly update for pv magazine, Solcast, a DNV company, reports that persistent high pressure in the upper atmosphere led to irradiance as high as 30% above normal, and new records for solar generation and temperature in North America in mid-February.
PV-powered cars and the parking dilemma
Researchers in Portugal have addressed the so-called ‘parking dilemma’ of electric cars incorporating photovoltaic modules. They looked into the tradeoff between charging the car and raising its inside temperature. They calculated the critical time as a function of the car’s solar capacity.
FläktGroup unveils heat pump with seasonal coefficient of performance of up to 4.76
The Swedish manufacturer said its new heat pump is an ideal solution for offices, shops, hotels and industrial buildings. The new product has a size of 15 kW to 41 kW and uses difluoromethane (R-32) as a refrigerant.
