Emiliano Bellini
Lennox launches residential heat pump with space-saving design
Lennox said its new EL18KSLV Side Discharge Heat Pump uses R-454B as the refrigerant and has a size ranging from 2 tons to 5 tons.
Lennox launches residential heat pump with space-saving design
The company said its new EL18KSLV Side Discharge Heat Pump uses R-454B as the refrigerant and has a size ranging from 2 tons to 5 tons.
Despite low gas prices, solar, wind remain cheapest sources of power in U.S.
Renewables remain cost-competitive in the United States despite rising natural gas competitiveness, according to Lazard’s 2025 “Levelized Cost of Energy+” report, which estimates combined cycle gas at $0.048/kWh to $0.107/kWh, solar at $0.038/kWh to $0.212/kWh, and nuclear at $0.141/kWh to $0.220/kWh.
Carrier debuts residential heat pump for cold climates
The U.S. heating specialist said its new heat pump system can operate “reliably” at -22 F and achieve 100% heating capacity at 1.4 F, with full cooling capacity being achievable at 122 F.
GE Appliances unveils residential hybrid heat pump water heater
The U.S. manufacturer said its new heat pump water heater can provide up to 60% more hot water than standard electric water heaters.
MIT scientists developing silicon solar cell based on singlet exciton fission
Scientists in the United States have designed a microwire solar cell that could reportedly enable the coupling of singlet fission with silicon. Key to their achievement was an interface that transfers the electrons and holes sequentially into silicon instead of both at once.
All solar cell efficiencies at a glance – updated
The research group led by Professor Martin Green has published Version 66 of the solar cell efficiency tables. There are 17 new results reported in the new version.
International PV module pricing may rise to $0.11/W by year end
International PV module prices, driven by Chinese averages, will likely rise from $0.08/W to $0.10/W today to $0.11/W by the end of 2025 and potentially $0.13/W by 2027, says Clean Energy Associates (CEA), noting that heterojunction and back-contact technologies now make up 12% of global module capacity.
Designing a Dyson sphere using photovoltaic modules
A photovoltaic Dyson sphere is a theoretical megastructure that could provide vast amounts of energy for interstellar space travel and large-scale technological endeavors.
Field survey protocol for monitoring PV backsheet degradation
A research group including scientists from U.S. National Institute of Standards and Technology (NIST), Underwriter’s Laboratories Inc., and the National Renewable Energy Laboratory (NREL) has outlined a new protocol for assessing PV module backsheet degradation in the field. Through the proposed framework, the researchers analyzed PV backsheet degradation across 41 sites, with exposure times ranging from 1 to 38 years.
