Scientists Just Created Liquid Solar Power That Can Be Stored for 18 Years

A team of Swedish scientists has gathered solar power so pure, that until recently, capturing it was an impossibility.

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Look no further than this week's climate strikes for evidence that millions of people are passionate about curbing global warming.

Unlike relatively limited solar panel energy storage, norbornadiene can potentially maintain its potency for years.

But even potential solutions, like alternative meats, have their own challenges. Some scientists are putting their focus on the sun to help balance out our energy consumption.

In fact, they are gathering solar power so pure that, until recently, capturing it was an impossibility.

The Lowdown

A group of Swedish scientists has created a liquid called norbornadiene. This liquid sunshine can capture up to 30 percent of raw solar power. To put it in perspective, the best publicly available solar panels can harness 21 percent. Norbornadiene would bring in about 50 percent more power – a significant difference in energy efficiency.

Most notably, unlike relatively limited solar panel energy storage, norbornadiene can potentially maintain its potency for years. We could have the ability to collect and store premium solar power, making it easier for current and future generations to use fossil and nuclear fuel alternatives.

"The norbornadiene molecules that we have made have very good properties, in terms of solar energy capture efficiency, storage time and energy density," says team lead Dr. Kasper Moth-Poulson of the Chamlers University of Technology. "They can store energy without the need for insulation materials for 18 or more years."

Next Up

Swedish scientist Moth-Poulsen and his team have been testing the norbornadiene on the physics building roof at the Chalmers University of Technology. Once activated, it heats up to just below boiling and provides enough power to be useful.

The energy density is 250 watt-hours per kilogram, twice the strength of Tesla's popular Powerall battery.

It requires potentially toxic solvents, like a cobalt-based activator, to transform into its full potential. The team is currently trying to find less-hazardous catalysts to help transform the norbornadiene to its active form, quadricyclane. Exposing it to sunlight is the main way to reactivate the norbornadiene's power. Over time, scientists will likely make it more efficient with less toxic agents.

The energy density is 250 watt-hours per kilogram, twice the strength of Tesla's popular Powerall battery.

Open Questions

The biggest question is safety, perceived or otherwise: Are you ready to drive around with 250 kWh of pure solar in your Hyundai? Norbornadiene may be stable in a hermetically sealed lab, but sculpting it for everyday use requires another level of security.

The half-life of the sunshine power is also an estimate, too. The challenge with new scientific substances is you don't know how the matter will evolve over time. It is easy to be overly optimistic about this one discovery being the key to our energy needs. For the time being, it is wiser to look at norbornadiene as a progressive step rather than a revolutionary one.

Even at its least effective, norbornadiene and its related material is a step toward us utilizing the one natural resource that won't run out for generations. In the short-term, a stable form of it could offset our fossil and nuclear fuel use and even help lower the carbon footprint made by long-distance transportation. It will be fascinating to see what future aircraft builders, home designers and even car manufacturers do as the solar technology conversation heats up.

Moth-Poulsen wants norbornadiene to be a definitive part of the climate change puzzle.

"I hope that in five years, we will see the first products based on our molecules and could help mitigate the daily variations in temperature," he says. "This will lead to increased thermal comfort and reduced energy consumption for heating and cooling."

Damon Brown
Damon Brown co-founded the popular platonic connection app Cuddlr. Now he helps side hustlers, solopreneurs, and other non-traditional entrepreneurs bloom. He is author of the TED book "Our Virtual Shadow" and, most recently, the best-selling "The Bite-Sized Entrepreneur" series. Join his creative community at
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Photo credit: LinkedIn

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Gregory Zuckerman
Gregory Zuckerman is a Special Writer at the Wall Street Journal where he writes about business, economic, and investing topics. He's a three-time winner of the Gerald Loeb award, the highest honor in business journalism. Zuckerman regularly appears on such media outlets as CNBC, Fox, MSNBC, and is the author of A Shot to Save the World, The Greatest Trade Ever, The Frackers, and The Man Who Solved the Market.  

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Kira Peikoff

Kira Peikoff is the editor-in-chief of As a journalist, her work has appeared in The New York Times, Newsweek, Nautilus, Popular Mechanics, The New York Academy of Sciences, and other outlets. She is also the author of four suspense novels that explore controversial issues arising from scientific innovation: Living Proof, No Time to Die, Die Again Tomorrow, and Mother Knows Best. Peikoff holds a B.A. in Journalism from New York University and an M.S. in Bioethics from Columbia University. She lives in New Jersey with her husband and two young sons. Follow her on Twitter @KiraPeikoff.