Renewable Energy News -- ScienceDaily
Renewable Energy Sources. Read the latest research on renewable sources of energy such as solar energy, wind power, nuclear energy, hydrogen fuel, ethanol, methane and other alternative energy sources.
New efficiency record for solar cell technology
21 Jan 2022 at 9:48am
A research team has set a new record in the power conversion efficiency of solar cells made using perovskite and organic materials. Their latest work demonstrated a power conversion efficiency of 23.6%, approaching that of conventional silicon solar cells. This technological breakthrough paves the way for flexible, light-weight, low cost and ultra-thin photovoltaic cells for wide-ranging applications.
Quantum dots boost perovskite solar cell efficiency and scalability
20 Jan 2022 at 11:07am
Scientists have boosted the efficiency and scalability of perovskite solar cells by replacing their electron-transport layers with a thin layer of quantum dots.
A catalyst for more efficient green hydrogen production
14 Jan 2022 at 12:34pm
Researchers have developed a new water-splitting process and material that maximize the efficiency of producing green hydrogen, making it an affordable and accessible option for industrial partners that want to convert to green hydrogen for renewable energy storage instead of conventional, carbon-emitting hydrogen production from natural gas.
Common household cleaner can boost effort to harvest fusion energy on Earth
11 Jan 2022 at 4:30pm
Path-setting findings demonstrate for the first time a novel regime for confining heat in stellarators. The demonstration could advance the twisty design as a blueprint for future fusion power plants.
Climate change could lead to power outages, higher power costs on west coast ...
5 Jan 2022 at 7:32am
Two studies project the future of power supply and demand on the West Coast under different scenarios: one under climate change and another where power sources shift toward renewables and the climate follows historic trends.
Study finds electric vehicles provide lower carbon emissions through addition...
21 Dec 2021 at 6:25pm
A recent study found that the total indirect emissions from the supply of chain of electric vehicles pale in comparison to the same indirect emissions from fossil fuel-powered vehicles.
Wind turbines kill mostly female and juvenile bats
13 Dec 2021 at 6:49am
Many bats die at wind turbines when colliding with the spinning blades. Currently it is unclear whether all age cohorts or sexes are equally vulnerable. A comparison of age, sex and geographic origin of Nathusius' pipistrelles killed at wind turbines and living conspecifics from nearby populations now reveals that juveniles are killed more frequently than adults compared to their proportion in local populations. Females are killed more frequently than males -- yet in line with their higher proportion in local populations. The high number of killed females and the elevated vulnerability of juveniles may have a negative effect on the long-term survival of populations, indicating that the current practice of wind energy production may not be ecologically sustainable.
Combined heat and power as a platform for clean energy systems
2 Dec 2021 at 4:11pm
The state of Georgia could dramatically reduce its greenhouse gas emissions, while creating new jobs and a healthier public, if more of its energy-intensive industries and commercial buildings were to utilize combined heat and power (CHP), according to the latest research.
Air quality models can improve the accuracy of forecasts of daily solar power...
2 Dec 2021 at 11:15am
The expansion of renewable energies is placing increasing demands on the power grids. Precise forecasts of the amount of solar power that will be fed into the grid is key to effective energy management. In addition to clouds, aerosol particles also strongly influence the amount of electricity generated by photovoltaic systems. Current air quality models are a good basis for estimating the production of solar electricity, but they could be further improved.
Perovskite solar cells soar to new heights
2 Dec 2021 at 11:15am
Researchers have developed a novel method to fabricate lead halide perovskite solar cells with record efficiency.
Scientists develop lead-absorbing tape to boost viability of rising star in s...
30 Nov 2021 at 10:02am
Scientists describe development of a cost-effective Scotch-tape-like film that can be applied to perovskite solar cells and capture 99.9% of leaked lead in the event of solar cell damage.
Research pushes auto industry closer to clean cars powered by direct ethanol ...
29 Nov 2021 at 9:28am
Alternative-energy research is charting a path toward the mass adoption of clean cars powered by direct-ethanol fuel cells.
Efficient organic solar cells processed from green solvents
29 Nov 2021 at 7:56am
A small guest molecule in the right place makes it possible to produce energy-efficient organic solar cells using eco-friendly solvents. A record efficiency over 17% is demonstrated. In addition, solar cells with larger areas can be produced.
Accelerated renewables-based electrification paves the way for a post-fossil ...
25 Nov 2021 at 12:48pm
Cost-slashing innovations are underway in the electric power sector and could give electricity the lead over fossil-based combustion fuels in the world's energy supply by mid-century. When combined with a global carbon price, these developments can catalyse emission reductions to reach the Paris climate targets, while reducing the need for controversial negative emissions, a new study finds.
New study shows electric fields can improve the efficiency of wastewater puri...
24 Nov 2021 at 12:38pm
A new technological advancement uses an electric field to achieve efficient and low-cost ammonia removal from wastewater.