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Category: solar power – Page 74

Like the Stanford Torus, the O’Neill Cylinder, and the Generation Ship, the Space Elevator is one of those ideas that keep popping up! Just when you think scientists and engineers have given up on it, there’s a new round of theoretical studies that assert how it could be done. You might say that the Space Elevator is an idea that’s too good to let go of.

Considering the benefits involved, this should come as no surprise. Granted, the cost in terms of money, resources, and time would be considerable, as are the engineering and logistical challenges involved. But for the one-time price of creating this megastructure, we would be able to realize space-based solar power, habitats in orbit, cities on the Moon and Mars, and more!

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Continue reading “The Technologies That Could Finally Make Space Elevators a Reality” | >

I think we should approach from two angles: 1. encourage and fund through government to have everyone who can to put solar on their home/building/whatever. 2. Also have the massive sites dedicated to solar and wind harvesting. Seems we could be totally solar by mid 2030s.

Rooftop solar panels are up to 79% cheaper than they were in 2010. These plummeting costs have made rooftop solar photovoltaics even more attractive to households and businesses who want to reduce their reliance on electricity grids while reducing their carbon footprints.

But are there enough rooftop surfaces for this technology to generate affordable, low-carbon energy for everyone who needs it? After all, it’s not just people who own their own houses and want to cut their bills who are in need of solutions like this. Around 800 million people globally go without proper access to electricity.

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The technical potential could rise to ‘nearly 150 PW-hr by 2060′.

The best way to incentivize sustainable energy is to make it affordable.

And the sharp drop in the price of photovoltaic systems has made solar capable of rivaling coal power in China, according to an analysis from researchers published in the journal Proceedings of the National Academy of Sciences of the United States of America.

However, as solar power comes to encompass a greater slice of a national economy’s power grid, it becomes harder to achieve a sustainable balance against the fact that solar can only generate power intermittently, potentially exacerbating energy management challenges.

Continue reading “It’s Official. China’s Solar Power Can Finally Compete With Coal” | >

One emergent company, Virgin Orbit wants to switch from a fuel-burning upper stage to solar energy, a move that could support future human habitats on other planets.

The satellite launch company has made a name for itself with its visually striking rocket launches. Strapped to the wing of a Boeing 747 the LauncherOne rocket doesn’t need the same launch pads and infrastructure as its competitors.

Virgin Orbit has hosted two successful launches to orbit, but it’s not stopping there. CEO Dan Hart tells Inverse that “we’re developing a solar electric upper stage for our rocket right now.”

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The math is pretty basic. How many satellites are going to go up over the next decade? How many solar panels will they need? And how many are being manufactured that fit the bill? Turns out the answers are: a lot, a hell of a lot, and not nearly enough. That’s where Regher Solar aims to make its mark, by bringing the cost of space-quality solar panels down by 90% while making an order of magnitude more of them. It’s not exactly a modest goal, but fortunately the science and market seem to be in favor, giving the company something of a tailwind. The question is finding the right balance between cost and performance while remaining relatively easy to manufacture. Of course, if there was an easy answer there, someone would already be doing that.

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A simple cooling system driven by the capture of passive solar energy could provide low-cost food refrigeration and living space cooling for impoverished communities with no access to the electricity grid. The system, which has no electrical components, exploits the powerful cooling effect that occurs when certain salts are dissolved in water. After each cooling cycle, the system uses solar energy to evaporate the water and regenerate the salt, ready for reuse.

“Hot regions have high levels of solar energy, so it would be very attractive to use that solar energy for cooling,” says Wenbin Wang, a postdoc in Peng Wang’s lab. In many parts of the world, there is a greater need for cooling because of climate change, but not every community can access electricity for air conditioning and refrigeration. “We conceptualized an off-grid solar-energy conversion and storage design for green and inexpensive cooling,” Professor Wang says.

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Vertical Farming has come a long way since the original series was posted 3 years ago, and there have been many developments that are shaping the future of the industry. Whether it’s large scale plant factories, community urban farms, or even new types of farm, the size of vending machines, and even vertical farms at home, the way we grow is changing.

But it’s not just the way we grow, what we grow is also changing. Vertical Farms are adding new crop types like tomatoes, cucumbers, strawberries and many other types of fruits and vegetables, and this change has happened sooner than the original series projected.

But to really have a significant impact on the global challenges of climate change, food security and water security, we will have to grow energy intensive crops like wheat and rice in vertical farms.

Are we on track to meet this challenge, or is vertical farming struggling to improve its energy efficiency? Is vertical farming closer to changing the world?

Continue reading “What’s The State Of Vertical Farming In 2021?” | >

Could combining solar panels plus farming be a viable solution to the growing demand for food production and energy demand? Let’s take a closer look at electrifying our crops (not literally electrifying crops) … well, adding solar to our farm land as well as some of the side benefits and challenges it creates.

Watch 28,000 Year Nuclear Waste Battery? Diamond Batteries Explained.

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Continue reading “Solar Panels Plus Farming? Agrivoltaics Explained” | >

While wind turbine and solar power platforms are beginning to take to the sea, another, more established form of power might also avoid hiking real estate costs.

A Copenhagen-based startup just raised funding to the sum of eight figures in Euros to begin construction of a new kind of cheap, flexible, portable, and unyieldingly safe nuclear reactor, according to a press release shared by the company, Seaborg Technologies.

And, crucially, the timeline for global deployment will shatter conventional paradigms in the energy industry.

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For a long time fixed wing VTOL drones were tricky to work with, but with the availability of open source flight control and autopilot software this has changed. To make experimentation even easier, [Stephen Carlson] and other researchers from the RoboWork Lab at the University of Nevada created the MiniHawk, a 3D printed VTOL aircraft for use a test bed for various research projects.

Some of these project include creating a longer wingspan aircraft by combining multiple MiniHawks in mid-flight with magnetic wing-tip mounts, or “migratory behaviors”. The latter is a rather interesting idea, which involves letting the craft land in any suitable location, and recharging using wing mounted solar panels before continuing with the next leg of the mission. With this technique, the MiniHawk could operate on mission almost indefinitely without human intervention. This is a departure from some other solar planes we’ve seen, which attempt to recharge while flying, or even ditch batteries completely, which limits operation to sunny weather conditions.

The design is open source, with all the relevant information and files available on GitHub. This looks like a fun craft even if you don’t plan on doing research with it, and [Stephen] also created an FPV specific canopy cover.

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