Researchers at Chalmers University of Technology in Sweden have demonstrated efficient solar energy storage in a chemical liquid. The stored energy can be transported and then released as heat whenever needed.
The research is now presented on the cover of the scientific journal Energy & Environmental Science.
?Many consider the sun the energy source of the future. But one challenge is that it is difficult to store solar energy and deliver the energy ‘on demand’.
A research team from Chalmers University of Technology in Gothenburg, Sweden, has shown that it is possible to convert the solar energy directly into energy stored in the bonds of a chemical fluid – a so-called molecular solar thermal system. The liquid chemical makes it possible to store and transport the stored solar energy and release it on demand, with full recovery of the storage medium. The process is based on the organic compound norbornadiene that upon exposure to light converts into quadricyclane.
‘The technique means that that we can store the solar energy in chemical bonds and release the energy as heat whenever we need it.’ says Professor Kasper Moth-Poulsen, who is leading the research team. ‘Combining the chemical energy storage with water heating solar panels enables a conversion of more than 80 percent of the incoming sunlight.’
The research project was initiated at Chalmers more than six years ago and the research team contributed in 2013 to a first conceptual demonstration. At the time, the solar energy conversion efficiency was 0.01 percent and the expensive element ruthenium played a major role in the compound. Now, four years later, the system stores 1.1 percent of the incoming sunlight as latent chemical energy – an improvement of a factor of 100. Also, ruthenium has been replaced by much cheaper carbon-based elements.
‘We saw an opportunity to develop molecules that make the process much more efficient,’ says Moth-Poulsen. ‘At the same time, we are demonstrating a robust system that can sustain more than 140 energy storage and release cycles with negligible degradation.’
The Latest on: Solar energy storage
via Google News
The Latest on: Solar energy storage
- Advanced Energy Storage Industry: 2019 Market Research With Size, Growth, Manufacturers, Segments and 2026 Forecastson October 13, 2019 at 11:40 pm
The report monitors the key trends and market drivers in the current scenario and offers on-the-ground insights. " The global advanced energy storage market is likely to derive growth from the ...
- Nuclear energy vs. climate change?on October 13, 2019 at 6:25 pm
Democratic candidates for president have proposed strategies to address climate change, including expansion of wind and solar ... underground storage sites where risk of leakage is negligible.
- This Startup Wants to Store Grid Energy by Lifting Concrete Blockson October 13, 2019 at 7:00 am
But one advantage mechanical energy storage does have is longevity. Matching supply and demand for a renewable grid has several different timescales associated with it. Matching supply and demand over ...
- Permit approved for solar and storage projecton October 11, 2019 at 11:20 am
REDFIELD — On the morning of Oct. 1, a regularly scheduled meeting, Tulare Energy, LLC received unanimous approval of the Tulare Solar Project Conditional Use Permit. The approval concluded 4 months ...
- Shell to power Philippines refinery with solar, storage and natural gason October 11, 2019 at 5:18 am
... Petroleum Corporation has touted the start of work on an integrated energy system to harness solar energy, natural gas and a 3 MWh battery storage system to power its 110,000 barrel-per-day oil ...
- Enphase Energy Makes Business Expansion Easier for Venture Solaron October 10, 2019 at 5:27 pm
About Enphase Energy, Inc. Enphase Energy, a global energy technology company, delivers smart, easy-to-use solutions that connect solar generation, storage and management on one intelligent platform.
- Vivint Solar Survey Shows 40% of Californians Have Considered Purchasing Solar + Storage in Preparation for Power Outageson October 10, 2019 at 3:45 am
"Vivint Solar provides tens of thousands of Californians with reliable and clean energy every day," said David Bywater, CEO of Vivint Solar. "It comes as no surprise that over 40% of California ...
- California blackouts: Keeping the lights on with solar energyon October 9, 2019 at 2:55 pm
EnergySage, a digital platform that people use to search for home solar systems, says that interest in energy storage rose 11%, or more than twice the national average, in PG&E’s service area in ...
- How Solar Plus Storage Saves Money, Creates Resilience: An In-Depth Lookon October 9, 2019 at 11:44 am
many organizations have begun to evaluate whether to pair solar with energy storage, not just to save money on their bills, but also for backup power. Solar plus storage systems can provide several ...
via Bing News