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Anyone who looks out at the ocean may feel awed by the power apparent in every wave. That power has the potential to provide energy to land-based homes and businesses, as well as floating facilities and vessels at sea. But how can we transform the ocean’s energy into usable forms, such as electricity or desalinated water?

One way to harness the ocean’s energy is through a device called a wave energy converter, or WEC. To date, WEC designs have been generally centered on large, rigid bodies that float in the water and move relative to each other as waves roll past. These bodies typically absorb ocean wave energy and focus that energy into a centralized conversion mechanism, such as a rotary generator or hydraulic piston.

Now, the National Renewable Energy Laboratory (NREL) is exploring ways to significantly advance wave energy converter design and development. With funding from the U.S. Department of Energy’s (DOE’s) Water Power Technologies Office, NREL researchers are developing concepts in which many small energy converters can be aggregated to create a single structure. With this new approach to developing wave energy, the domain of distributed embedded energy converter technologies (DEEC-Tec) could help the promise of substantial renewable energy generation from ocean waves become a reality.

Figure 1. Stretched and deformed sample volume of a flexWEC’s structure illustrating the basic use of distributed embedded energy converters (DEECs) to create power from wave energy. The sample volume has two sections where material is removed to clarify their respective arrangements: (1) the middle section has the supporting compliant material framework removed, and (2) the right section has both the supporting compliant framework and the DEECs removed. The illustration showcases how the combined semicontinuous nature of DEEC technologies supports the development of materials and structures for ocean wave energy harvesting and conversion devices.

Why Distribute and Embed Multiple Energy Converters?

One of the most innovative elements of DEEC-Tec is its ability to create flexible ocean wave energy converters, sometimes known as flexWECs. These devices have inherently broad-banded ocean wave energy absorption and conversion characteristics, meaning they can harvest energy across a wide range of ocean wave heights and frequencies.

DEEC-Tec provides a new scope of possibilities for how ocean wave energy can be harvested and converted and how flexWEC designs could power a variety of end uses both on land (powering homes and businesses) and at sea (powering navigation buoys and marine vehicles). Some of these uses will support DOE’s Powering the Blue Economy™ initiative, which aims to advance marine renewable energy technologies, such as navigation buoys or autonomous underwater vehicles, to promote economic growth in industries such as aquaculture.

“Our goal with DEEC-Tec is to vastly broaden how we currently conceptualize and envision the use of ocean wave energy,” said NREL researcher Blake Boren, who has been studying wave energy converters for over 10 years. “There is a tremendous range of possibilities for how we can develop these DEEC-Tec-based wave energy converters, and we are accelerating that exploration process.”

Figure 2. Three possible flexWEC archetypes showcasing the nondeformed and dynamically deformed states of DEEC-Tec-based flexWEC structures. The yellow flexible bodies in each archetype represent the DEEC-based, compliant structures illustrated in Figure 1. (Note: Nothing is to scale; flexWEC archetype figures and scenes are solely illustrative.)

How DEEC-Tec Moves Wave Energy Forward

DEEC-Tec concepts are assembled from many small energy converters that, together, form a structure that can undulate like a snake, stretch and bend like a sheet of fabric, or expand and contract like a balloon. As the overall structure bends, twists, and/or changes shape as the ocean waves roll past, each embedded energy converter can turn a portion of that ocean wave energy into electricity.

A flexWEC has several advantages:

  • A broader spectrum of energy capture. With a wide range of movement and deformations available, DEEC-Tec-based wave energy converters absorb and convert ocean wave energy across a much broader range of wave conditions — both in terms of size and frequency — when compared with rigid-body converters.
  • Mechanical redundancy. The ability to use many hundreds or thousands of distributed embedded energy converters can ensure that ocean energy conversion occurs even if one or more of those converters stops functioning.
  • Resilience. The DEEC-Tec-based wave energy converter’s flexibility grants an inherent survival mechanism: the ability to ride out and absorb excessive, dangerous surges of energy from large storms and rough seas.
  • Favorable materials. DEEC-Tec-based wave energy converters could be manufactured from recycled materials or simple polymers. These replace heavier, sometimes more expensive materials that have historically been used for wave energy converter development, such as steel or rare-earth elements needed for large permanent magnets. Moreover, existing mass-manufacturing techniques could be used for straightforward and cost-effective DEEC-Tec component fabrication.
  • Easier installation. DEEC-Tec-based wave energy converters can be folded, deflated, or otherwise made compact for transport from a manufacturer to a deployment site. Likewise, for installation, they can be expanded to cover broad surface areas as needed. This would allow for robust energy capture with lower capital costs.
  • Reduced maintenance schedules. Monitoring the relative performance of many small devices determines the need for DEEC-Tec-based wave energy converter maintenance throughout the structure. The inherent redundancy of the structure potentially translates to less frequent inspections and maintenance requirements.
  • Near-continuous structural control. A DEEC-Tec-based wave energy converter is composed of numerous small transducers — mechanisms that convert one form of energy into another. Some of these can serve as simple electrical actuators, which can change the converter’s shape and movement in response to ocean wave conditions. This will allow for greater ocean wave energy harvesting and conversion control.

Bending to the Future

While there are many advantages to using DEEC-Tec in the research and development of ocean wave energy converters, there are still unknowns that need to be understood and addressed. To this end, NREL researchers are identifying the materials, structural designs, electronic systems, and manufacturing methods that could advance DEEC-Tec concepts for marine renewable energy. NREL’s work also includes DEEC-Tec subcomponent validation and codesign, computational models to simulate performance, and device proofs of concept for building and validation.

As part of this research, NREL is collaborating with outside institutions, such as the University of Colorado–Boulder, Netherlands-based energy company SBM Offshore, the U.S. Naval Research Laboratory, and Sandia National Laboratories.

Learn more about NREL’s work on distributed embedded energy converter technologies.

Article and Images courtesy of the NREL, the U.S. Department of Energy.


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This guy built a six-seater electric bike for $150, and it absolutely rips

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This guy built a six-seater electric bike for 0, and it absolutely rips

I’ve always enjoyed multi-seater electric bikes, which bring passenger-carrying utility to small-format, easy-to-produce vehicles. But I never thought I’d see the concept taken this far. At least not until I stumbled upon a six-seater electric bike that has me all kinds of jealous.

It’s no surprise where this custom e-bike originated. If you want to see the most creative and ingenious transportation solutions in the world, you have to head over to Asia.

The Chinese often get a lot of credit for some of the more wacky vehicles popping up on Alibaba, but India usually takes the cake with some of the coolest auto and motorcycle innovation on the planet. And that’s exactly where this impressive six-seater bike comes from, where it was hand-built by Ashhad Abdullah from Lohra in eastern India.

Abdullah seems to have caught my recent Awesomely Weird Alibaba Electric Vehicle of the Week entry for a three-seater electric bike and said “Hold my lassi.”

Flip-flops and no helmets, but at least he’s wearing a mask!

Instead of a three-seater, Abdullah doubled the capacity to six seats. His stretch-limousine electric bike looks like it wears a scooter fork on front complete with drum brake, off-road lighting kit, and even a motorcycle horn. The rear seems to hold a hub motor wheel in a swingarm supported by dual coilover shocks. There’s a battery box mounted just in front of the swingarm, though how much capacity he’s rocking seems to be a mystery.

Bridging the two ends of the bike is a bespoke ladder frame with six seats, six handlebars, and six pairs of foot pegs.

There’s no word on the turning radius, but we’d wager it’s somewhere around the width of the state of Bihar.

Abdullah created the custom-designed bike after climbing fuel prices made petrol-powered motorcycles less appealing. In total, he says the bike cost him around 12,000 INR (US $150) to build.

It gets a range of around 150 km (93 miles) and costs around 10 INR (US $0.12) to recharge.

I’m not sure if this is technically an e-bike, at least by electric bicycle standards. It certainly looks like a tandem-style bicycle setup with bicycle seats, but the lack of pedals means it would be classified more like an electric scooter or motorcycle.

But whatever you call it, the six-seater bike has received a warm reception around the world.

The novel creation went viral on Twitter after a video of it in action was reposted by Anand Mahindra, the chairman of Mahindra Group, one of the largest automakers in India (and similar in size to GM).

It’s unlikely we’d see an awesome ride like this in the West, where safety regulations and an unhealthy aversion to two wheels would likely make this six-seater dead on arrival.

I’ll admit that it’s hard for me to argue with the safety concerns, especially when seeing six helmet-less heads and a few bare feet as well.

There are some good alternatives available in the US, at least if you’re alright with just two-seater e-bikes. But with options like a $999 Lectric XP 3.0 or a $1,499 RadRunner helping put more riders on smaller electric vehicles, the chances for sharing the fun on e-bikes are growing, even in laggard countries like the US.

We may never get six bodies on one bike, but even two would be a good start!

via: TimesNowNews

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Tesla launches in Thailand, opens Model 3 and Y orders at competitive prices

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Tesla launches in Thailand, opens Model 3 and Y orders at competitive prices

Tesla has officially launched in Thailand and opened orders for Model 3 and Model Y at competitive prices.

It has been a little while since Tesla has expanded into a brand-new market. The company was trying hard to enter the Indian market for years, but the effort was put on hold earlier this year after negotiations with the government stalled.

A few weeks later, we learned that Tesla’s new market team turned its attention to Southeast Asia, and more specifically Thailand.

The automaker filed to register its product for sale in the country. That was the first indication that Tesla planned to enter the market.

In September, we reported that Tesla started to hire in Thailand – indicating that a launch was imminent.

Today, Tesla has officially launched its Model 3 and Model Y vehicles in Thailand with a small event in a luxury mall in central Bangkok.

The automaker has started taking orders through a new Thai configurator for those two models. Tesla is offering all variants of the Model 3 and Model Y for sale in Thailand:

The Model 3 starts at ฿1,759,000 in Thailand, which is the equivalent of about $50,000 USD and fairly competitive compared to other luxury EVs in the market.

The Model Y starts ฿1,959,000, or about $58,000 USD.

Interestingly, while Tesla is starting to take orders through the new configurator, the automaker doesn’t list expected delivery windows in the country.

While we don’t know when official deliveries from Tesla will start in Thailand, there are already a decent number of Tesla electric vehicles in the country.

They have been imported privately by the owners – and that’s a factor that Tesla takes into account when considering entering a new market. If many people are willing to go through the trouble of importing the vehicle, there’s a good chance that there’s a market for its vehicles in the country.

We even reported on the Thai police buying a fleet of Tesla Model 3 vehicles for police patrol back in 2020, pictured above.

The Thai auto market is more significant than most people would think. More than 750,000 cars were sold in the market last year, and it is expected to ramp up to 800K–900K this year. However, most of those vehicles are not in the same price range as Tesla vehicles.

Thailand is also a vehicle assembly hub with up to 2 million vehicles produced locally per year.

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U.S. pledges to ramp up supplies of natural gas to Britain as Biden and Sunak seek to cut off Russia

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U.S. pledges to ramp up supplies of natural gas to Britain as Biden and Sunak seek to cut off Russia

Rishi Sunak and Joe Biden photographed on the sidelines of the G20 Summit in Indonesia on Nov. 16, 2022.

Saul Loeb | AFP | Getty Images

LONDON — The U.K. and U.S. are forming a new energy partnership focused on boosting energy security and reducing prices.

In a statement Wednesday, the U.K. government said the new partnership would “drive work to reduce global dependence on Russian energy exports, stabilise energy markets and step up collaboration on energy efficiency, nuclear and renewables.”

The U.K.-U.S. Energy Security and Affordability Partnership, as it’s known, will be directed by a U.K.-U.S. Joint Action Group headed up by officials from both the White House and U.K. government.

Among other things, the group will undertake efforts to make sure the market ramps up supplies of liquefied natural gas from the U.S. to the U.K.

Read more about energy from CNBC Pro

“As part of this, the US will strive to export at least 9-10 billion cubic metres of LNG over the next year via UK terminals, more than doubling the level exported in 2021 and capitalising on the UK’s leading import infrastructure,” Wednesday’s announcement said.

“The group will also work to reduce global reliance on Russian energy by driving efforts to increase energy efficiency and supporting the transition to clean energy, expediting the development of clean hydrogen globally and promoting civil nuclear as a secure use of energy,” it added.

Commenting on the plans, U.K. Prime Minister Rishi Sunak said: “We have the natural resources, industry and innovative thinking we need to create a better, freer system and accelerate the clean energy transition.”

“This partnership will bring down prices for British consumers and help end Europe’s dependence on Russian energy once and for all.”

The news comes at a time of huge disruption within global energy markets following Russia’s invasion of Ukraine in February.

Read more about electric vehicles from CNBC Pro

The Kremlin was the biggest supplier of both natural gas and petroleum oils to the EU in 2021, according to Eurostat, but gas exports from Russia to the European Union have been signifciantly reduced this year. The U.K. left the EU on Jan. 31, 2020.

Major European economies have been trying to reduce their own consumption and shore up supplies from alternative sources for the colder months ahead — and beyond.

Top CEOs from the power industry have forecast that turbulence in energy markets is likely to persist for some time. “Things are extremely turbulent, as they have been the whole year, I would say,” Francesco Starace, the CEO of Italy’s Enel, told CNBC last month.

“The turbulence we’re going to have will remain — it might change a little bit, the pattern, but we’re looking at one or two years of extreme volatility in the energy markets,” Starace added.

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