Connect with us

Politics

Buildings are turning to ‘ice batteries’ for sustainable air conditioning

Published

on


Every night some 74,000 gallons (280,000 liters) of water are frozen at Norton Audubon Hospital in Louisville, Kentucky. The hospital used to get all of its air conditioning from a conventional system found in most U.S. buildings, but now 27 tanks of ice sustain a network of cold-water pipes keeping operating rooms at safe temperatures and patients comfortable.

This type of thermal energy storage, also known as ice batteries, is being added to buildings in the U.S. for its ability to provide cool air without releasing planet-warming emissions. These systems cut electricity usage and lower the strain on the grid. With rising temperatures and the growing demand for electricity in the U.S., ice thermal energy storage offers a sustainable option for cooling buildings.

Trane Technologies, a company that makes heating and cooling equipment, says it has seen a growing demand for this technology over the past few years. Its ice batteries are mostly used in schools as well as commercial and government buildings. Nostromo Energy, another company that makes ice batteries, is pursuing customers among energy-intensive data centers that have high cooling demands. Smaller systems are also made for homes by companies such as Ice Energy.

Tanks of ice thaw to create air conditioning

Ice thermal energy storage technology varies between manufacturers, but each follows a similar concept: At night when electricity from the grid is at its cheapest, water is frozen into ice that thaws the next day to cool the building. The ice chills water that is circulating through pipes in the building, absorbing heat from the rooms and creating a cooling effect. Air cooled by the system is then pushed through vents.

Norton Audubon Hospital uses a Trane ice battery system. Trane said its ice batteries are often used alongside traditional air conditioning, and the ice-based cooling is used to lower energy costs during peak demand times. The traditional AC components are typically left in place or downsized when ice batteries are added.

The stored ice doesn’t require energy to thaw, which reduces the strain on the grid and minimizes the building’s electricity usage, ultimately lowering monthly bills.

“Storing energy for further uses is where we’re going with the future of the grid,” said Ted Tiffany, senior technical lead at the Building Decarbonization Coalition. He said access to air conditioning is a major public health need that is being exacerbated by a warming planet, and ice batteries are a sustainable way to address health risks associated with extreme heat.

Energy costs at Norton Audubon were $278,000 lower for the first year the ice battery system was in operation after it was installed 2018. The hospital estimates that the system and other energy-saving measures have saved it nearly $4 million since 2016.

“The technology has been awesome for us,” said Anthony Mathis, a Norton Healthcare executive who oversees sustainability. He said he receives inquiries from other building operators about the technology and thinks more facilities will adopt it as awareness grows.

Using ice to meet growing energy demands

Experts on sustainable energy say ice thermal energy storage is among the options commercial buildings can use to reduce electricity demand or store excess energy. Some commercial buildings use lithium batteries, which can store excess solar or wind energy that are available intermittently.

Dustin Mulvaney, environmental studies professor at San Jose State University, said ice batteries are a sensible option for health care settings and senior homes because lithium batteries can pose a fire risk.

Manufacturers also see opportunities in data centers, which are increasing in number to support artificial intelligence and have high energy and cooling needs. A December report from the Department of Energy found that data centers consumed more than 4% of the electricity in the country in 2023 and that number could grow up to 12% by 2028.

“Data centers are very energy-hungry and about 30% to 40% of their energy use is for cooling … that’s where a solution like ours could really help,” said Yoram Ashery, CEO of Nostromo Energy.

Nostromo Energy said it is discussing deals to install its systems with several large data center operators, but declined to provide further details. Its ice battery technology is also used at the Beverly Hills Hotel in California.

California is currently the biggest market for this technology because the grid there uses a lot of solar power during the day but switches to polluting energy sources such as natural gas after the sun sets. Ice batteries can be used for air conditioning in the late afternoon and evening instead of drawing from the grid.

“A lot of utilities are really interested in this type of load-shifting technology,” said Joe Raasch, CEO at Ice Energy, another ice thermal energy storage company. He said summer is typically the most expensive time for utilities to operate because of the air conditioning demand.

“It’s really great technology that the grid really needs because so much of the future electric load is driven by cooling,” said Raasch.

___

Republished with permission of The Associated Press.



Source link

Continue Reading

Politics

Rolando Escalona aims to deny Frank Carollo a return to the Miami Commission

Published

on


Early voting is now underway in Miami for a Dec. 9 runoff that will decide whether political newcomer Rolando Escalona can block former Commissioner Frank Carollo from reclaiming the District 3 seat long held by the Carollo family.

The contest has already been marked by unusual turbulence: both candidates faced eligibility challenges that threatened — but ultimately failed — to knock them off the ballot.

Escalona survived a dramatic residency challenge in October after a rival candidate accused him of faking his address. A Miami-Dade Judge rejected the claim following a detailed, three-hour trial that examined everything from his lease records to his Amazon orders.

After the Nov. 4 General Election — when Carollo took about 38% of the vote and Escalona took 17% to outpace six other candidates — Carollo cleared his own legal hurdle when another Judge ruled he could remain in the race despite the city’s new lifetime term limits that, according to three residents who sued, should have barred him from running again.

Those rulings leave voters with a stark choice in District 3, which spans Little Havana, East Shenandoah, West Brickell and parts of Silver Bluff and the Roads.

The runoff pits a self-described political outsider against a veteran official with deep institutional experience and marks a last chance to extend the Carollo dynasty to a twentieth straight year on the dais or block that potentiality.

Escalona, 34, insists voters are ready to move on from the chaos and litigation that have surrounded outgoing Commissioner Joe Carollo, whose tenure included a $63.5 million judgment against him for violating the First Amendment rights of local business owners and the cringe-inducing firing of a Miami Police Chief, among other controversies.

A former busboy who rose through the hospitality industry to manage high-profile Brickell restaurant Sexy Fish while also holding a real estate broker’s license, Escalona is running on a promise to bring transparency, better basic services, lower taxes for seniors and improved permitting systems to the city.

He wants to improve public safety, support economic development, enhance communities, provide more affordable housing, lower taxes and advocate for better fiscal responsibility in government.

He told the Miami Herald that if elected, he’d fight to restore public trust by addressing public corruption while re-engaging residents who feel unheard by current officials.

Carollo, 55, a CPA who served two terms on the dais from 2009 to 2017, has argued that the district needs an experienced leader. He’s pointed to his record balancing budgets and pledges a residents-first agenda focused on safer streets, cleaner neighborhoods and responsive government.

Carollo was the top fundraiser in the District 3 race this cycle, amassing about $501,000 between his campaign account and political committee, Residents First, and spending about $389,500 by the last reporting dates.

Escalona, meanwhile, reported raising close to $109,000 through his campaign account and spending all but 6,000 by Dec. 4.

The winner will secure a four-year term.



Source link

Continue Reading

Politics

Florida kicks off first black bear hunt in a decade, despite pushback

Published

on


For the first time in a decade, hunters armed with rifles and crossbows are fanning out across Florida’s swamps and flatwoods to legally hunt the Florida black bear, over the vocal opposition of critics.

The state-sanctioned hunt began Saturday, after drawing more than 160,000 applications for a far more limited number of hunting permits, including from opponents who are trying to reduce the number of bears killed in this year’s hunt, the state’s first since 2015.

The Florida Fish and Wildlife Conservation Commission awarded 172 bear hunt permits by random lottery for this year’s season, allowing hunters to kill one bear each in areas where the population is deemed large enough. At least 43 of the permits went to opponents of the hunt who never intend to use them, according to the Florida chapter of the Sierra Club, which encouraged critics to apply in the hopes of saving bears.

The Florida black bear population is considered one of the state’s conservation success stories, having grown from just several hundred bears in the 1970s to an estimated more than 4,000 today.

The 172 people who were awarded a permit through a random lottery will be able to kill one bear each during the 2025 season, which runs from Dec. 6 to Dec. 28. The permits are specific to one of the state’s four designated bear hunting zones, each of which have a hunting quota set by state officials based on the bear population in each region.

In order to participate, hunters must hold a valid hunting license and a bear harvest permit, which costs $100 for residents and $300 for nonresidents, plus fees. Applications for the permits cost $5 each.

The regulated hunt will help incentivize maintaining healthy bear populations, and help fund the work that is needed, according to Mark Barton of the Florida chapter of Backcountry Hunters and Anglers, an advocacy group that supported the hunt.

Having an annual hunt will help guarantee funding to “keep moving conservation for bears forward,” Barton said.

According to state wildlife officials, the bear population has grown enough to support a regulated hunt and warrant population management. The state agency sees hunting as an effective tool that is used to manage wildlife populations around the world, and allows the state to monetize conservation efforts through permit and application fees.

“While we have enough suitable bear habitat to support our current bear population levels, if the four largest subpopulations continue to grow at current rates, we will not have enough habitat at some point in the future,” reads a bear hunting guide published by the state wildlife commission.

___

Republished with permission of the Associated Press.



Source link

Continue Reading

Politics

Early voting underway for Miami Mayor’s runoff between Eileen Higgins, Emilio González

Published

on


Early voting is underway in Miami as former County Commissioner Eileen Higgins and former City Manager Emilio González enter the final stretch of a closely watched Dec. 9 mayoral runoff.

The two candidates rose from a 13-person field Nov. 4, with Higgins winning about 36% of the vote and González taking 19.5%. Because neither surpassed 50%, Miami voters must now choose between contrasting visions for a city grappling with affordability, rising seas, political dysfunction and rapid growth.

Both promise to bring more stability and accountability to City Hall. Both say Miami’s permitting process needs fixing.

Higgins, a mechanical engineer and eight-year county commissioner with a broad, international background in government service, has emphasized affordable housing — urging the city to build on public land and create a dedicated housing trust fund — and supports expanding the City Commission from five to nine members to improve neighborhood representation.

She also backs more eco-friendly and flood-preventative infrastructure, faster park construction and better transportation connectivity and efficiency.

She opposes Miami’s 287(g) agreement with U.S. Immigration and Customs Enforcement, calling recent enforcement “inhumane and cruel,” and has pledged to serve as a full-time mayor with no outside employment while replacing City Manager Art Noriega.

González, a retired Air Force colonel, former Director of U.S. Citizenship and Immigration Services and ex-CEO of Miami International Airport, argues Miami needs an experienced administrator to fix what he calls deep structural problems.

He has made permitting reform a top priority, labeling the current system as barely functioning, and says affordability must be addressed through broader tax relief rather than relying on housing development alone.

He supports limited police cooperation with ICE and wants Miami to prepare for the potential repeal of homestead property taxes. Like Higgins, he vows to replace Noriega but opposes expanding the commission.

He also vows, if elected, to establish a “Deregulation Task Force” to unburden small businesses, prioritizing capital investments that protect Miamians, increasing the city’s police force, modernizing Miami services with technology and a customer-friendly approach, and rein in government spending and growth.

Notably, Miami’s Nov. 4 election this year might not have taken place if not for González, who successfully sued in July to stop officials from delaying its election until 2026.

The runoff has drawn national attention, with major Democrats like Democratic National Committee Chair Ken Martin, Arizona U.S. Rep. Ruben Gallego and Orange County Mayor-turned-gubernatorial candidate Jerry Demings and his wife, former Congresswoman Val Demings, backing Higgins and high-profile Republicans like President Donald Trump, Gov. Ron DeSantis and U.S. Sen. Rick Scott lining up behind González.

For both parties, Miami’s outcome is seen as a bellwether heading into a volatile 2026 cycle, in a city where growth, climate challenges and governance failures remain top concerns for nearly 500,000 residents.

Higgins, a 61-year-old Democrat who was born in Ohio and grew up in New Mexico, entered the race as the longest-serving current member of the Miami-Dade Commission. She won her seat in a 2018 Special Election and coasted back into re-election unopposed last year.

She chose to vacate her seat three years early to run for Mayor.

She worked for years in the private sector, overseeing global manufacturing in Europe and Latin America, before returning stateside to lead marketing for companies such as Pfizer and Jose Cuervo.

In 2006, she took a Director job with the Peace Corps in Belize, after which she served as a foreign service officer for the U.S. State Department under President Barack Obama, working in Mexico and in economic development areas in South Africa.

Since filing in April, Higgins raised $386,500 through her campaign account. She also amassed close to $658,000 by the end of September through her county-level political committee, Ethical Leadership for Miami. Close to a third of that sum — $175,000 — came through a transfer from her state-level PC.

She also spent about $881,000.

If elected, Higgins would make history as Miami’s first woman Mayor.

González, a 68-year-old born in Cuba, brought the most robust government background to the race. A U.S. Army veteran who rose to the rank of colonel, he served as Miami City Manager from 2017 to 2020, CEO of Miami International Airport (MIA) from 2013 to 2017 and as Director of Citizenship and Immigration Services at the U.S. Department of Homeland Security under President George W. Bush.

In private life, he works as a partner at investment management firm RSMD Investco LLC. He also serves as a member of the Treasury Investment Council under the Florida Department of Financial Services.

Since filing to run for Mayor in April, he raised nearly $1.2 million and spent about $1 million.

Election Day is Tuesday.



Source link

Continue Reading

Trending

Copyright © Miami Select.