At 380 feet, the Old Port Square tower on Union Street in Portland would be the tallest building in Maine. It is meant to resemble a lighthouse beacon. (Courtesy of Safdie Architects)
Portland’s skyline is changing.
First, the iconic B&M Baked Beans brick smokestack came down. Then the 190-foot Casco building went up. And soon, the city will add a sweeping new Roux Institute campus and an “architecturally significant” expansion of the Portland Museum of Art.
But perhaps no change will have as much visual impact as the 30-story, nearly 400-foot tower the planning board approved earlier this month.
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The proposal has ruffled feathers, with many bemoaning what they say sticks out like a sore thumb (or middle finger) on the city’s idyllic skyline. They fear if more high-rises pop up across the city, Portland might slowly morph into a northern version of Boston.
So will this project usher in an era of skyscrapers for Maine’s largest city?
Experts say that’s unlikely.
“We’re not expecting a windfall of 30-story buildings,” said Kevin Kraft, the city’s director of planning and urban development.
Under new zoning laws, only a small section of downtown along Temple, Federal and Union streets allow buildings as tall as the tower. That means even if there was an appetite for more high-rises, there simply isn’t much undeveloped space.
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Furthermore, much of Portland ‘s peninsula is covered in historic districts, and “contributing buildings” can’t be torn down, Kraft noted.
Chapter 14 Land Use Code – Revised 12-3-2025 (PDF)-Pages by julia
GROWING UP
Vertical development, experts say, is a sustainable way to squeeze more housing into a smaller footprint, something cities have been doing for decades. And Portland needs housing in spades.
Last year, city leaders updated its zoning laws with the goal of allowing growth while preserving character. The overhaul included an increased maximum height for buildings in some of the city’s major corridors, permitting buildings up to 380 feet in a section of downtown.
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That part of the city has always allowed the tallest buildings, but until last year’s recode, the maximum height was 250 feet. And that height cap was in place for nearly 30 years before it was even remotely tested when Redfern Properties built the 190-foot Casco in 2023, currently the tallest building in Maine.
The new proposal from Portland developer East Brown Cow Management LLC, tentatively called Old Port Square tower, would be twice that tall. It would include more than 70 residential units, commercial space, an 88-room hotel and a restaurant at the top, and is just one piece of a development project that could fill an entire city block.
Whether any other developers follow suit with similar proposals could depend more on market conditions than Portland’s updating zoning.
“People aren’t going to build speculative high-rises,” Kraft said.
If the building ends up being successful, though, it could be an important “proof of concept” for other developers in the area, said Tim Love, assistant director of the Master in Real Estate Program at Harvard University.
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Love is generally supportive of the project, which he said is in a great location.
“A lot of these proposals don’t happen because at the end of the day, the financing doesn’t work or the numbers that were plugged in for rents aren’t supported by the underwriting,” he said. “So I think it would be good for Portland if this project is a success,” because it could lead to additional residential development downtown.”
And more people living downtown is exactly what the city needs, he said.
“I hope this is a model for more residential mixed-use development at densities that can extend the kind of not 24/7 but 18/7 life of the city all the way to the museum,” he said.
If Portland is going to get an influx of high-rises, it won’t be for some time, said Jeff Levine, a former planner for the city of Portland who now divides his time consulting and teaching urban studies and planning at the Massachusetts Institute of Technology.
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“I don’t think you get instant results in anything,” he said.
Real estate is complicated. Beyond just zoning changes, there are building regulations, financial restrictions and even simply individual personalities that impact whether a building will go up, Levine said.
FEAR OF CHANGE
Nancy Smith, CEO of GrowSmart Maine, a nonprofit that helps communities grow in sustainable ways, says the Old Port Square tower will certainly be symbolic for the city, but it’s not a “game-changer.”
Game-changers, she said, were the Franklin Arterial and the demolition of Union Station — projects that transformed the city (though arguably not for the better) and made a statement about what Portland wanted to be in the future.
But some feel like the tower could do that, too. It just might take time.
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“We’re not (just) trying to capture the current moment, we want to anticipate the growth we could see in the next 15, 20, 30 years,” Kraft said. “We want to accommodate that growth (and) be more proactive than reactionary.”
Cities are constantly changing and evolving, he said. At one point, the Time and Temperature building on Congress Street seemed to dwarf those around it, including the Fidelity Trust building, which was once known as Maine’s “first skyscraper.” Now, they blend in.
Additionally, Smith said, the uses intended for the proposed tower area already commonplace downtown: a hotel, restaurant, apartments and shops.
Still, a big element of early opposition to the tall tower is fear of change, and that’s natural, she said.
“The challenge is moving beyond that deeply personal response to actually consider what you’re looking at,” she said. “This building has a lot of symbolic value. Portland is changing, but stopping the building isn’t going to stop that change.”
Monmouth Academy’s Riley Smith slides into home plate during the Mustangs’ 4-0 win over Madison on May 26, 2025, in Monmouth. (Andree Kehn/Staff Photographer)
Ashley Shores, Lawrence senior utility: Shores is the reigning Kennebec Valley Athletic Conference Class B Player of the Year. She can play first base, the outfield and pitch, but will likely spend the bulk of her season behind the plate, guiding freshman starter Alea Williams.
Bella Loubier, Winslow junior catcher: A KVAC Class B second-team selection last season, Loubier is the top returner on a team that coaches believe could be a surprise in Class C North. She will be the leader of a young but talented squad under coach Michael Savage.
Hallie Coots, Nokomis junior utility: Coots was asked to wear many different hats as a sophomore for a young Warriors team, included time as both a pitcher and a catcher. She handled the duties well, earning KVAC B second-team honors. Now a junior, she’ll be a trusted veteran voice who will, once again, be asked to handle a variety of duties.
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Kelsie Dunn, Erskine Academy junior pitcher: A KVAC Class B second-team selection last year, Dunn helped lead the Eagles to a Class B quarterfinal appearance. She’ll once again be the leader in the circle for a team that enters the new season with most of last season’s roster intact, creating higher expectations.
Lilly Clark, Erskine Academy senior shortstop: A multi-sport athlete, Clark is a captain who will be counted on to help the Eagles take another step forward. She was a KVAC Class B first-team selection last year.
Lydia Jones, Skowhegan senior infielder: A longtime starter for the River Hawks, Jones was a KVAC Class A second-team selection last season, helping guide a young roster to the North playoffs. She’ll again be relied on to guide a young but more experienced team.
Maddie Provost, Lawrence senior infielder: The Miss Maine Basketball and Varsity Maine Girls Basketball Player of the Year who will continue her career on the hardwood at Division I Holy Cross next season, Provost decided to wrap up her high school athletic career on the diamond, although she hadn’t played softball since middle school. Coach Joey Marcoux believes Provost will start the season at third base. Her athleticism and speed will be an immediate asset in the lineup.
Molly Takatsu, Gardiner sophomore infielder/pitcher: Takatsu produced quickly as a freshman last season and was rewarded with KVAC Class B second-team honors. She’ll be one of the top returning players for a team that once again carries three strong pitchers and will be fast on defense and on the basepaths.
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Raegan King, Nokomis senior shortstop/center fielder: A strong athlete who will continue her softball career at Husson University, King has been a long-time contributor to the Warriors’ lineup with her bat, speed and positional flexibility. She’s the top returner for a squad that should make another strong run in the Class B North playoffs. She earned KVAC Class B first-team honors last season.
Riley Smith, Monmouth Academy senior outfielder: A Mountain Valley Conference first-team selection last season, Smith is an experienced outfielder who is an asset both at the plate and in the field. She’ll be a key contributor for the Mustangs, who should be a contender in the Class C South playoffs.
Central Maine Power is expanding its Union Trade Internship Program in 2026, increasing opportunities for Maine high school students to gain hands-on experience in the electric utility industry.
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A sign for Central Maine Power, a subsidiary of Avangrid
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CMP expands union trade internship program for Maine students
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Central Maine Power is expanding its Union Trade Internship Program in 2026, increasing opportunities for Maine high school students to gain hands-on experience in the electric utility industry.
Updated: 11:47 AM EDT Apr 14, 2026
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Central Maine Power is expanding its Union Trade Internship Program in 2026, increasing opportunities for Maine high school students to gain hands-on experience in the electric utility industry.Now in its second year, the 10-week paid program will double enrollment, expand to additional schools in central and southern Maine, and broaden training to include both line and substation operations. The program will serve 10 students ages 16 and older, selected through a competitive recruitment and interview process in partnership with participating schools.The internship runs from June to August and includes classroom instruction at CMP’s training center in Farmingdale, along with supervised field experience alongside union crews. Students will learn foundational skills such as pole climbing, bucket truck operation, breaker and transformer maintenance, and the safe use of tools and protective equipment. Participants will not work on live electrical wires.The program is aimed at strengthening the workforce pipeline for skilled trades while giving students early exposure to careers in the energy sector and supporting partnerships between CMP and Maine schools.
PORTLAND, Maine —
Central Maine Power is expanding its Union Trade Internship Program in 2026, increasing opportunities for Maine high school students to gain hands-on experience in the electric utility industry.
Now in its second year, the 10-week paid program will double enrollment, expand to additional schools in central and southern Maine, and broaden training to include both line and substation operations. The program will serve 10 students ages 16 and older, selected through a competitive recruitment and interview process in partnership with participating schools.
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The internship runs from June to August and includes classroom instruction at CMP’s training center in Farmingdale, along with supervised field experience alongside union crews. Students will learn foundational skills such as pole climbing, bucket truck operation, breaker and transformer maintenance, and the safe use of tools and protective equipment. Participants will not work on live electrical wires.
The program is aimed at strengthening the workforce pipeline for skilled trades while giving students early exposure to careers in the energy sector and supporting partnerships between CMP and Maine schools.
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Oceans absorb roughly 25 to 30 percent of the carbon dioxide (CO2) that is released into the atmosphere. When this CO2 dissolves in seawater, it forms carbonic acid, making the water more acidic and altering its chemistry. Elevated levels of acidity are harmful to marine life like corals, oysters, and certain plankton that rely on calcium carbonate to build shells and skeletons.
“As the oceans absorb more CO2, the chemistry shifts — increasing bicarbonate while reducing carbonate ion availability — which means shellfish have less carbonate to form shells,” explains Kripa Varanasi, professor of mechanical engineering at MIT. “These changes can propagate through marine ecosystems, affecting organism health and, over time, broader food webs.”
Loss of shellfish can lead to water quality decline, coastal erosion, and other ecosystem disruptions, including significant economic consequences for coastal communities. “The U.S. has such an extensive coastline, and shellfish aquaculture is globally valued at roughly $60 billion,” says Varanasi. “With the right innovations, there is a substantial opportunity to expand domestic production.”
“One might think, ‘this [depletion] could happen in 100 years or something,’ but what we’re finding is that they are already affecting hatcheries and coastal systems today,” he adds. “Without intervention, these trends could significantly alter marine ecosystems and the coastal economies that rely on them over time.”
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Varanasi and T. Alan Hatton, the Ralph Landau Professor of Chemical Engineering, Post-Tenure, at MIT, have been collaborating for years to develop methods for removing carbon dioxide from seawater and turn acidic water back to alkaline. In recent years, they’ve partnered with researchers at the University of Maine Darling Marine Center to deploy the method in hatcheries.
“The way we farm oysters, we spawn them in special tanks and rear them through about a two-week larval period … until they’re big enough so that they can be transferred out into the river as the water warms up,” explains Bill Mook, founder of Mook Sea Farm. Around 2009, he noticed problems with production of early-stage larvae. “It was a catastrophe. We lost several hundred thousand dollars’ worth of production,” he says.
Ultimately, the problem was identified as the low pH of the water that was being brought in: The water was too acidic. The farm’s initial strategy, a common practice in oyster farming, was to buffer the water by adding sodium bicarbonate. The new approach avoids the use of chemicals or minerals.
“A lot of researchers are studying direct air capture, but very few are working in the ocean-capture space,” explains Hatton. “Our approach is to use electricity, in an electrochemical manner, rather than add chemicals to manipulate the solution pH.”
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The method uses reactive electrodes to release protons into seawater that is collected and fed into the cells, driving the release of the dissolved carbon dioxide from the water. The cyclic process acidifies the water to convert dissolved inorganic bicarbonates to molecular carbon dioxide, which is collected as a gas under vacuum. The water is then fed to a second set of cells with a reversed voltage to recover the protons and turn the acidic water back to alkaline before releasing it back to the sea.
Maine’s Damariscotta River Estuary, where Mook farms is located, provides about 70 percent of the state’s oyster crop. Damian Brady, a professor of oceanography based at the University of Maine and key collaborator on the project, says the Damariscotta community has “grown into an oyster-producing powerhouse … [that is] not only part of the economy, but part of the culture.” He adds, “there’s actually a huge amount that we could learn if we couple the engineering at MIT with the aquaculture science here at the University of Maine.”
“The scientific underpinning of our hypothesis was that these bivalve shellfish, including oysters, need calcium carbonate in order to form their shells,” says Simon Rufer PhD ’25, a former student in Varanasi’s lab and now CEO and co-founder of CoFlo Medical. “By alkalizing the water, we actually make it easier for the oysters to form and maintain their shells.”
In trials conducted by the team, results first showed that the approach is biocompatible and doesn’t kill the larvae, and later showed that the oysters treated by MIT’s buffer approach did better than mineral or chemical approaches. Importantly, Hatton also notes, the process creates no waste products. Ocean water goes in, CO2 comes out. This captured CO2 can potentially be used for other applications, including to grow algae to be used as food for shellfish.
Varanasi and Hatton first introduced their approach in 2023. Their most recent paper, “Thermodynamics of Electrochemical Marine Inorganic Carbon Removal,” which was published last year in journal Environmental Science & Technology, outlines the overall thermodynamics of the process and presents a design tool to compare different carbon removal processes. The team received a “plus-up award” from ARPA-E to collaborate with University of Maine and further develop and scale the technology for application in aquaculture environments.
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Brady says the project represents another avenue for aquaculture to contribute to climate change mitigation and adaptation. “It pushes a new technology for removing carbon dioxide from ocean environments forward simultaneously,” says Brady. “If they can be coupled, aquaculture and carbon dioxide removal improve each other’s bottom line.”
Through the collaboration, the team is improving the robustness of the cells and learning about their function in real ocean environments. The project aims to scale up the technology, and to have significant impact on climate and the environment, but it includes another big focus.
“It’s also about jobs,” says Varanasi. “It’s about supporting the local economy and coastal communities who rely on aquaculture for their livelihood. We could usher in a whole new resilient blue economy. We think that this is only the beginning. What we have developed can really be scaled.”
Mook says the work is very much an applied science, “[and] because it’s applied science, it means that we benefit hugely from being connected and plugged into academic institutions that are doing research very relevant to our livelihoods. Without science, we don’t have a prayer of continuing this industry.”