Connect with us

Published

on

Courtesy of RMI.
By Laurie Stone 

As Hurricane Grace and Tropical Storm Henri cause destruction up and down the Atlantic, people living on islands and coastal territories must prepare for an above average hurricane season. In fact, the National Oceanic and Atmospheric Administration has predicted that we could see up to ten hurricanes in the Atlantic in 2021, three to five of which could have winds of 111 miles per hour or greater. These hurricanes wreak havoc on people’s lives, both emotionally and physically. They destroy critical infrastructure, leaving many people without basic services such as electricity and water for prolonged periods of time.

Fortunately, many islands are installing solar photovoltaic (PV) systems—often including batteries—to decrease dependence on volatile fuel imports and provide more reliable power to their residents. However, even PV systems aren’t invulnerable to hurricanes. Over the years, we have found that some PV systems suffer major damage during hurricanes, while others survive and continue producing power. We set out to find out why.

In 2018, we analyzed solar PV systems in the Caribbean after Hurricanes Irma and Maria. We then wrote a report, titled Solar Under Storm, detailing how to build hurricane-resistant ground-mounted PV systems. We followed that with two reports in 2020: a similar report geared toward roof-mounted PV systems and one detailing best practices for policymakers. These reports describing how to build resilient PV systems are making a huge difference in keeping the lights on for people on islands around the world.

Resilience in The Bahamas

Hurricane Dorian devastated The Bahamas in 2019. Since then, the government and utilities have been working hard to deploy reliable and resilient power. And that includes employing the best practices learned from our Solar Under Storm analysis. RMI worked with Bahamas Power and Light to design, develop, and install a solar microgrid on Ragged Island. The 390 kilowatt (kW) microgrid is built to withstand a Category 5 hurricane (with winds of 180 mph) and provides 93 percent of the island’s energy needs. The project was highlighted on CBS’ 60 Minutes.

Another system in The Bahamas built using recommendations from the reports is the 1.1 megawatt (MW) solar-plus-battery microgrid on Highbourne Cay. The microgrid, also built to withstand a Category 5 hurricane, will provide power to up to 100 residents and guests at the island’s resort. It will also save more than 1,650 tons of CO2 emissions annually and pay for itself through diesel savings in just five to six years.

The recommendations are even being used in the largest solar project in The Bahamas to date. The 4 MW solar-plus-battery microgrid on Chub Cay is expected to be complete by mid-September. Chub Cay is a privately owned island that had been powered with diesel generators. However, the Texan owner of the island, who ironically made his money from oil and gas, realized it made financial sense to switch to solar energy to supply 90 percent of the island’s energy. Applying resilience best practices from the reports only increased costs by 5 to 7 percent. This was also a cost-effective investment to ensure that the system survives hurricane-force winds.

“Fortunately, most of these systems have not had to endure a category 5 hurricane after installation. We wouldn’t wish that on anyone,” says Chris Burgess, project director for RMI’s Global South Program. “But we have a lot of data from the surviving systems of Irma and Maria that have already allowed us to conclude that these best practices do work and that these new resilient PV systems will survive severe storms.”

Beyond The Bahamas

Other islands across the Caribbean are also using the best practices described in the reports. For example, Montserrat recently completed a 750 kW microgrid. In the event that the grid goes down, the microgrid will help provide power to a hospital, airport, assisted living apartment complex, and a number of homes in the area.

A 100 kW solar microgrid on the Grenadine island of Mayreau, deployed in 2019 by St. Vincent Electricity Services Limited with help from RMI, serves 28 percent of the island’s electricity demand. It is greatly reducing the island’s energy costs and will ensure electricity is available to critical facilities during storms.

“The Mayreau project was initially specified to withstand Category 4 winds,” says Fidel Neverson, senior project manager for RMI’s Global South Program. “That was before we saw the utter destruction caused by Hurricanes Irma and Maria to ground-mount solar arrays that were built to Category 4 specifications.”

Using best practices from the first Solar Under Storm publication, RMI and the project team completely reengineered the Mayreau solar array to a Category 5 design. “We want to give the Mayreau microgrid the best possible chance of surviving the types of devastating hurricanes that have impacted the region recently so that the island’s residents can enjoy its benefits for years to come,” Neverson adds.

And in Puerto Rico, after Hurricanes Maria and Irma caused the largest blackout in US history, RMI helped the island install solar and battery microgrids on 10 public schools. “All of our procurements require installers to adhere to Solar Under Storm principles,” says Roy Torbert, a principal with RMI’s Global South Program. “The systems on these schools were built to withstand Category 5 hurricane winds. But we’ve also seen many of them continue to provide power after the grid went down due to the earthquakes that ravaged the island in early 2020.”

Helping Develop New Policies and Codes

The third report that RMI produced, Solar Under Storm for Policymakers, emphasized that it is not only installers that have to act on the recommendations. There are many things that governments, regulators, and developers can do to improve the survivability of solar PV systems in the face of severe storms. And many policymakers throughout the Caribbean are taking that to heart. The Organization of Eastern Caribbean States adopted the best practices from the Solar Under Storm reports into its building code. And the Caribbean Development Bank uses the recommendations as part of its underwriting process for the financing of solar projects. 

Three years after we published our first Solar Under Storm report, we are happy to see all of the solar projects that have employed our recommendations. “We discovered that design, workmanship, quality materials, and quality checks were the difference between survival and failure,” said Burgess. “We realized we didn’t need a technical or manufacturing revolution, we just needed to have an eye for detail.”

Fortunately, islands throughout the Caribbean are using those details to prepare their solar systems for the ever-increasing hurricanes. In this way, we can ensure reliable, life-saving power for those who need it most.

 

Appreciate CleanTechnica’s originality? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.

 

 


Advertisement



 


Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Continue Reading

Environment

Volvo EX30 tops Mini in Europe as low-cost EV’s sales surge in May

Published

on

By

Volvo EX30 tops Mini in Europe as low-cost EV's sales surge in May

The cheapest and smallest Volvo EV is off to a hot start. After only five months on the market, the Volvo EX30 topped BMW’s Mini in Europe’s small premium segment as sales continued surging.

Volvo EX30 passes Mini in EU sales

Since EX30 production began in Zhangjiakoui, China, last fall, Volvo’s compact EV is already a top seller.

Despite its small size, the Volvo EX30 is having a significant impact. According to global data collection firm Dataforce, Volvo’s sales rose 27% last month in Europe. With over 32,800 models sold, Volvo propelled to number 14, up from 17 last year.

The EX30 accounted for the majority of the growth. Volvo’s EX30 topped the small premium segment, surpassing BMW’s Mini by 1,029 in sales.

Volvo’s EX30 is the third-best-selling EV in Europe through May, with 30,195 models sold. The Tesla Model Y took the top spot with over 79,100. Tesla’s Model 3 was second with 38,863 units sold, up 38% YOY.

The growth comes after the EU revealed plans for additional tariffs on EVs made in China last week. Volvo’s deputy CEO, Bjorn Annwall, criticized the decision, saying it would only hurt the buyer.

Volvo-EX30-Mini
Volvo EX30 (Source: Volvo)

Starting at around 36,000 euros ($38,500), Volvo’s EX30 is one of the most affordable EVs on the market.

Although Volvo had already planned to begin EX30 production in the EU in 2025, Annwall hinted the US-bound model would likely come from Belgium.

Volvo-EX30-Mini
Volvo EX30 interior (Source: Volvo)

Volvo plans to introduce the EX30 in over 90 countries by the end of the year. In the US, the EX30 starts at $34,950. It’s available in two powertrains, a single-motor extended range, and a twin-motor performance, offering up to 275 miles of range.

As you would expect from Volvo, the EX30 has the latest safety and connectivity tech. It includes Google built-in with Apple CarPlay as standard.

Electrek’s Take

Volvo EX30 sales surging in Europe is no surprise as demand for affordable EVs continues climbing. Most automakers are planning or have already launched low-cost EVs.

Kia opened orders for its EV3 in Korea, starting at $30,700 (KRW 42.08 million). Next year, Kia is expected to launch the EV4, an entry-level electric sedan, starting at around $35,000 (see a video of it captured in the wild).

Volkswagen finished design work on its ID.2all, a $27,000 (25,000) euro electric car. The production ID.2all is expected to debut later this year, with sales kicking off in 2025.

Hyundai, Ford, GM, BMW, Nissan, and others have all revealed plans to launch more affordable EVs over the next few years.

Volvo’s early commitment to go all-electric is already paying off as the EX30 takes market share.

Source: Automotive News

FTC: We use income earning auto affiliate links. More.

Continue Reading

Environment

Ferrari’s new solar-powered e-building opens ahead of first EV sports car debut

Published

on

By

Ferrari's new solar-powered e-building opens ahead of first EV sports car debut

The Italian luxury sports car maker is preparing to launch its first EV. Ferrari’s new e-building opened its doors on Friday with Italian President Sergio Mattarella in attendance. The new plant, entirely powered by renewable energy, is set to launch the first Ferrari EV sports car.

Ferrari’s first fully electric sports car will be built at the new e-building. CEO Benedetto Vigna said the new factory will “light up” Ferrari’s future.

The e-building will enable Ferrari to continue to “audaciously redefine the limits of what’s possible.” Ferrari’s first EV sports car will be built at the facility alongside its next-gen hybrids and ICE vehicles. The facility will also produce batteries, electric motors, and inverters for Ferrari’s EV.

Ferrari has invested roughly $214 million (200 million euros) to make the facility a reality. After opening the doors Friday, Ferrari said the plant will help improve efficiency and flexibility.

The building will be entirely powered by renewable energy. Over 3,000 solar panels on the roof produce 1.3 MW of energy. Ferrari said that by reusing rainwater and energy in the production cycle, 60% of the energy used for battery and motor testing would be recovered and redirected.

Ferrari's-e-building
Ferrari’s new e-building (Source: Ferrari)

Ferrari’s new e-building opens with first EV coming soon

The new inauguration comes after sources told Reuters this week that Ferrari’s first EV sports car will cost at least $535,000 (500,000 euros).

According to the sources, Ferrari is already developing its second electric vehicle. It’s still in its early stages but will be built at the new e-building.

Ferrari's-e-building
Inside Ferrari’s new e-building (Source: Ferrari)

Ferrari launched its first plug-in hybrid last year, the SF90 Stradale, as it electrifies the brand. By 2026, Ferrari aims for EVs and PHEVs to account for 60% of sales.

The first fully electric Ferrari is expected to be revealed by the end of the year. Check back soon for more info.

Meanwhile, luxury rival Lamborghini revealed its first electric car, the Lanzador EV, last August (check out Lamborghini’s first EV here). Lamborghini is expected to launch the Lanzador in 2028.

FTC: We use income earning auto affiliate links. More.

Continue Reading

Environment

Spy photos hint at Xiaomi’s quick encore to the SU7 EV to compete against the Tesla Model Y

Published

on

By

Spy photos hint at Xiaomi's quick encore to the SU7 EV to compete against the Tesla Model Y

It’s only been six months since Xiaomi Automobile launched its first-ever BEV – the SU7. Following early success, Xiaomi has been developing a second model, and spy images from local media outlets in China have given us a (camouflaged) glimpse at the EV’s exterior design.

Xiaomi Automobile is the EV-centric arm of one of China’s largest smartphone and electronics manufacturers, founded three years ago. After following much of its surprisingly quick and encouraging process in BEV development, Xiaomi launched its flagship SU7 EV in December of 2023, garnering an impressive number of orders from Chinese consumers loyal to the parent brand.

The infant EV model received over 50,000 orders in the first 27 minutes of going on sale, creating a waitlist of up to seven months. This incited Xiaomi Automobile to restructure its production strategy to manufacture and deliver more SU7s than initially planned to keep up with growing demand.

After just 32 days of production, Xiaomi celebrated its 10,000th SU7 build. By May 2024, we reported the young automaker was already developing a second all-electric model to compete against the globally popular Tesla Model Y.

Most recently, local media outlets in China have captured spy photos of what appears to be Xiaomi’s new EV – a sleek SUV coupe.

  • Xiaomi EV spy
  • Xiaomi EV spy

Spy images show a sleek new Xiaomi coupe SUV EV

Local media outlet Xchuxing posted the spy images seen above, which appear to be the public’s first glimpse at Xiaomi’s next EV. The report also states the new model is a coupe SUV with a design similar to the Ferrari Purosangue and is expected to be released sometime in 2025.

These details align with our previous reports on Xiaomi’s second EV, which is expected to continue competing against Porsche and, in this instance, Tesla.

As you can see from the spy images, the covered Xiaomi EV has a LiDAR sensor on its roof, expected to be the same as its SU7 sibling, to enable the automaker’s NOA (Navigate on Pilot) ADAS.

The rear is larger than the SU7 sedan but appears to feature the same tail light design, further hinting that these spy images are, in fact, Xiaomi’s next EV. We will know more once the Chinese automaker publicly confirms the new model, hopefully alongside some non-camouflaged images.

However, from what we’ve seen so far, it looks sharp. We hope to learn more soon and report back.

Credit for all images: xchuxing.com

FTC: We use income earning auto affiliate links. More.

Continue Reading

Trending