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The demise of American offshore wind

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Europe has 37 gigawatts of offshore wind capacity. China is catching up rapidly.  Across the globe, offshore wind is an increasingly important source of clean, renewable power.  The United States had previously set ambitious goals to join the international effort.  But in the aftermath of the 2024 election, offshore wind in the US is basically dead in the water, pun intended.

The Bureau of Ocean Energy Management announced at the end of July that it is rescinding all designated Wind Energy Areas on the U.S. Outer Continental Shelf, effectively ending all offshore wind development across the Gulf of Mexico, the Gulf of Maine, the New York Bight, California, Oregon, and the Central Atlantic.  Additional policy measures announced by the Department of the Interior ended special treatment for what it called “unreliable energy sources, such as wind.” 

The two significant offshore wind projects underway in the US are both under serious attack by the administration and by newly emboldened special interests.  Vineyard Wind in Massachusetts, with 17 turbines already in operation, is under assault by tourist town forces and fishing groups.  Empire Wind, in New York, which resumed construction after efforts by Governor Kathy Hochul, is under pressure by various special interest groups that are urging President Trump to halt the project.

The current administration has very public and very pronounced antipathy towards wind power in general and towards offshore wind in particular.  And this has brought to a rapid halt billions of dollars in investments and will eliminate tens of thousands of jobs.

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US offshore wind, long ‘dead,’ now really dead

Photo, posted September 15, 2016, courtesy of Lars Plougmann via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

The cicadas are coming

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After hiding underground for the last 17 years, billions of cicadas are taking to the skies this summer.  This batch of insects, known as Brood XIV, will cover more of the U.S. than any other 17-year brood.  New York and at least 13 other states – Georgia, Kentucky, Maryland, Massachusetts, New Jersey, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, and parts of Indiana are being serenaded by the sound of cicadas in May and June.

There are 15 broods of periodical cicadas that emerge every 13 or 17 years.  They come out when soil temperatures reach 64 degrees.  Around the world there are annual cicadas while periodical cicadas can only be found in the eastern United States.

Once the insects emerge, they will issue their noisy, chirping mating calls for just a few weeks before they lay eggs and die.  The offspring from the eggs will burrow underground and remain dormant or in the nymph stage feeding on tree roots for another 17 years.  Surfacing in vast numbers is a way to overwhelm predators and ensure that at least some cicadas survive to reproduce. 

The emergence of these insects provides a bounty of food to squirrels, lizards, birds, and other creatures.  A study found that once cicadas emerge, the population of cuckoos, blue jays, and red-bellied woodpeckers grows.

As the climate changes, the timing of cicada cycles may also change.  Warmer weather will lead to cicadas emerging earlier in the year.  Eventually, even the time they spend underground may shorten.

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After 17 Years Underground, Massive Cicada Brood to Swarm U.S.

Photo, posted July 16, 2017, courtesy of Renee Grayson via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Neighborhood geothermal energy

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Residential geothermal energy makes use of the constant, year-round temperature of the earth below the surface to efficiently provide both heating and cooling for a home.  In the summer, the cool earth beneath a house sits at about 55 degrees and can be tapped into with a heat pump to provide cooling.  In the winter, that 55-degree underground expanse provides a much warmer source of air to heat instead of the often freezing-cold air outside.  Geothermal systems are appealing because they use far less energy than other sources of heating and cooling.

Using geothermal energy to heat and cool buildings is nothing new.  But after years of planning and months of drilling into the ground, the first neighborhood-scale geothermal heating and cooling project has come online in Framingham, Massachusetts.

The project ties together 31 residential and five commercial buildings that share the underground infrastructure needed to heat and cool them.  This sort of shared geothermal system has previously been used on college campuses and similar places, but never before across a neighborhood in the United States.

The $14 million project, built by Eversource, broke ground in June 2023, and comprises 90 boreholes or wells drilled 600-700 feet underground. Approximately 135 customers are connected to the system, including low- and moderate-income customers, apartment buildings, a gas station, and a kitchen cabinet showroom.

A total of 13 states, including Massachusetts and New York, are considering pilot projects or advancing legislation that would allow gas utilities to develop networked geothermal heating and cooling.

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First-in-the-Nation Geothermal Heating and Cooling System Comes to Massachusetts

Photo, posted September 30, 2019, courtesy of Stephen D. Strowes via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Offshore wind and the wake effect

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Electricity demand in the U.S. continues to grow and, in the summer, homes and businesses crank up their air conditioning which drives demand even further.  Many East Coast cities are banking on offshore wind projects that are underway in the Atlantic Ocean to help meet that growing demand.  The first offshore turbines are now producing power off the coasts of Massachusetts and New York.

Electric power utilities need to know how much power they can get from offshore wind farms, and this is not that easy to predict.  Wind is variable, so there is some built-in uncertainty.  But there is also a phenomenon known as the wake effect to contend with.

When wind passes through a series of giant turbines, the ones in front extract some energy from the wind and, as a result, the wind slows down and becomes more turbulent behind the turbines.  So, the downstream turbines get slower wind and may produce less power.

A study by the University of Colorado has modeled this phenomenon for planned wind farms in the Atlantic Coast region and has found that power output could be reduced by over 30%.  Researchers are installing weather monitors and radar sensors in islands off the New England coast to better understand the behavior of the wind in the area and improve prediction models.

The New England grid covers Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. Even with the wake effect, offshore wind is predicted to be able to provide 60% of the electricity needs of the grid, but it is important to be able to accurately predict what it can produce.

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How much energy can offshore wind farms in the US produce? New study sheds light

Photo, posted August 31, 2022, courtesy of Nina Ali via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Offshore wind in Massachusetts

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On January 2nd, the first large offshore wind farm in New England started producing electricity when its first turbine came online.  The Vineyard Wind project, located off the coast of Martha’s Vineyard, will by the end of the year have a total of 62 turbines with a capacity of 800 megawatts, enough electricity to power 400,000 homes.

Power finally flowing from Vineyard Wind is an important milestone for an industry that has struggled to get going.  It is the second utility-scale offshore wind farm in the U.S. to begin generating electricity.  The South Fork Wind project off the coast of New York began producing power in December.  That project will eventually produce 132 megawatts of electric power.

The offshore wind industry in the U.S. has faced some difficulties in recent times.  A combination of rising costs, high interest rates, supply chain delays, and incidents of local opposition have created headwinds.  Developers for several large planned windfarms in the northeast have terminated contracts because of inflation and high interest rates.  The second phase of Empire Wind, located southeast of Long Island, has been at least temporarily shelved awaiting more favorable contract terms.

To fight climate change, many Eastern states are hoping to install dozens of large wind farms in the Atlantic that can generate electricity without emitting greenhouse gases.  But as a result of the recent project cancellations, analysts are now projecting that U.S. offshore wind capacity in 2030 will likely be about a third less than previously predicted.

So far, the United States remains far behind Europe, which has already installed more than 32,000 megawatts of wind capacity in its waters.

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Massachusetts Switches On Its First Large Offshore Wind Farm

Photo, posted August 31, 2022, courtesy of Nina Ali via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Offshore wind in the U.S. at last

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There have been large offshore wind farms in Europe for over 30 years.  Five Asian countries have had offshore wind installations for 7 years, with China now leading the world in total installed capacity.   The United States has been talking about offshore wind power for a long time and has been moving toward actually installing it in fits and starts.

As of early December, there is finally a wind turbine off the coast of eastern Long Island that has begun sending electricity onto the U.S. grid.  The South Fork Wind Farm will soon have 12 turbines generating 132 megawatts of offshore wind energy to power more than 70,000 homes.

Meanwhile, the first five turbines for the Vineyard Wind I project off the coast of Massachusetts have been installed and will be sending 65 megawatts of power to the electric grid in Massachusetts just weeks after the New York installation turned on.

Vineyard Wind I is planned to expand into a 62-turbine, 806-megawatt project when fully operational.  That is enough electricity to power an estimated 400,000 homes and businesses.

There are multiple offshore wind projects in various stages of development along the eastern seaboard.  There are also various projects in the planning stages on the west coast, where the deep seabeds require the use of much more challenging floating turbine installations.

While it is encouraging to see that offshore wind is finally happening here in the United States, it is sobering to realize that there is more than 63 thousand megawatts of offshore wind power capacity installed globally comprising more than 11,000 turbines.  We have a lot of catching up to do.

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Decades after Europe, South Fork Wind sends first commercial wind power onto US grid

First five turbines installed at Vineyard Wind 1

Photo, posted June 14, 2022, courtesy of Stephen Boutwell/BOEM via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Nantucket Residents Still Fighting Offshore Wind | Earth Wise

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Offshore wind in the US has had to fight to exist for a long time.  The Cape Wind project in Nantucket Sound off the coast of Cape Cod was envisioned over 20 years ago as a 1.5-gigawatt wind farm.  Years of legal battles and other controversies saw the project start and stop multiple times with only minimal actual construction.  Primary opposition came from residents who considered the turbines far off on the distant horizon to be an eyesore and threat to their property values.  Eventually, the project was terminated in 2017.

Since then, offshore wind has gained substantial support in the US and multiple projects are either ongoing or in the permitting process.  The 800 MW Vineyard Wind project is on track to be the first commercial-scale offshore wind farm in the US, with plans to eventually generate enough electricity to power 400,000 homes.

Once again, Nantucket residents are fighting against an offshore wind farm.  Once again, they are making arguments that are not really what concerns them, in this case, saying that the wind turbines are a threat to the survival of endangered North Atlantic right whales.

A federal judge has recently rejected a lawsuit brought by the group Nantucket Residents Against Turbines that sought to stop the project.  The judge found that the group failed to show that either the US Bureau of Ocean Energy Management or the National Marine Fisheries Service violated the Endangered Species Act or the National Environmental Policy Act in its 2021 rulings on the impact of the proposed wind farm on the whales.

Undoubtedly there will be additional challenges from the group, possibly based on entirely different complaints.  It’s tough to build offshore wind in Massachusetts.

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Judge rejects lawsuit by Nantucket residents to block offshore wind farm

Photo, posted November 21, 2016, courtesy of Adrian Scottow via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Offshore Wind In Maine | Earth Wise

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There are currently only two small offshore wind farms operating in the United States, but there are now several more under construction or in the permitting process.  Substantial wind farms are expected to come online over the next five years off the coasts of Virginia, New Jersey, Massachusetts. North Carolina, Delaware, Rhode Island, and New York.   There has been a recent auction for offshore wind sites off the California coast as well.

In April, the Bureau of Ocean Energy Management issued its Gulf of Maine Call for Information and Nominations, inviting public comment and assessing the interest in areas offshore of Maine, New Hampshire, and Massachusetts.  This is the first official step in the lengthy process that leads to offshore wind development in new areas.  Last year, the Department of the Interior defined an area of about 13.7 million acres in the Gulf of Maine that could end up providing energy leases for windfarm development.

The Biden administration has set a goal of deploying 30 gigawatts of offshore wind electricity generation by 2030, which is enough to power more than 10 million homes. It would also create thousands of jobs across manufacturing, shipbuilding, port operations, construction, and other industrial sectors.  Existing offshore wind projects have been structured to develop American-based supply chains for the offshore wind industry.

The European Union currently has over 15 gigawatts of installed offshore wind, has a target of 60 gigawatts by 2030, and 300 gigawatts by 2050.  The EU has five substantial sea basins which have tremendous potential for wind energy generation.  As a result, offshore wind is the centerpiece of the ambitious European Green Deal.

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U.S. moves to develop offshore wind in the Gulf of Maine

Photo, posted August 31, 2022, courtesy of Nina Ali via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Here Come The Lanternflies | Earth Wise

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The spotted lanternfly is an invasive pest from Asia that primarily feeds on tree of heaven, which is itself an invasive species that has become widespread.  The real problem is that the lanternfly can also feed on some 70 other plants such as grapevines, maples, fruit trees, and more.

The lanternfly was first discovered in the US in Pennsylvania in 2014 and has since spread to 14 states including New York, Massachusetts, Connecticut, and Rhode Island.  (It was first spotted in New York in Staten Island in 2020 and has continued to spread).

The insect poses a significant threat to New York’s agricultural and forest health. Both the adults and nymphs feed on the sap of plants which stresses them making them vulnerable to diseases and other insect attacks.  They also secrete a sticky substance that attracts molds and interferes with photosynthesis.

Lanternflies are not strong fliers.  They mostly spread through human activity by laying their eggs on vehicles, firewood, outdoor furniture, and other objects that people transport.

The bout of unusually warm weather that the Northeast experienced in early spring is likely to have jumpstarted the spotted lanternfly timeline and hatching could be bumped up to as early as May.

Agriculture officials are asking for people to look for spotted lanternfly egg masses and scrape them off with implements with a sharp edge.  Adult insects should be reported to local authorities and should be killed if at all possible.  There is lots of information online about how to recognize the egg masses and the insects.  Spotted lanternflies are not a direct threat to humans, but they have the potential to cause great harm to vineyards, orchards, and forests.

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Spotted Lanternfly

Photo, posted September 12, 2018, courtesy of the U.S. Department of Agriculture via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Banning Gas-Powered Cars | Earth Wise

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The European Union has banned the sale of new gas-powered cars starting in 2035.  The vote came after weeks of negotiations related to possible exemptions to the rule.

Germany lobbied for an exemption to be made for cars powered by e-fuels.  These are made by combining hydrogen with carbon dioxide that has been removed from the atmosphere using processes powered by renewable energy.  Because of this source of the carbon dioxide, such fuels are considered to be carbon neutral.  The EU agreed to grant this exemption, so there can be cars that run only on e-fuels after 2035.

About a quarter of carbon emissions in the EU come from transportation.  The new law requires a 55% drop in carbon emissions from new cars by 2030.  Poland voted against the new law, while Bulgaria, Romania, and Italy abstained.  (Italy wanted an exemption for biofuels, but it was not granted).

Here in the US, seven states have adopted rules banning the sale of new gas-powered cars in 2035.  These are California, Maryland, Massachusetts, New Jersey, New York, Oregon, and Washington. 

California has committed to having 35% of new car sales being zero-emission vehicles by 2026, and the number rising to 68% by 2030.

As these policies proliferate around the world, the auto industry is moving ahead to keep up with them.  Most automakers are planning to have substantial parts of their product line be electric by 2030.  Given the financial and physical inertia involved in shifting to electric vehicle production, regardless of what happens with policies around the world, there is little possibility of turning back from the electric vehicle transition.

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EU Approves 2035 Ban on Sales of Gas-Powered Cars

Photo, posted May 31, 2012, courtesy of Mike Norton via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Salt Marshes And Climate Change | Earth Wise

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Salt marshes are coastal wetlands that are flooded and drained by salt water brought in and out by the tides. These low-lying wetlands are also sometimes called tidal marshes because they occur in the zone between low and high tides. These wetlands are some of the most biologically productive ecosystems on Earth.

Cape Cod’s beautiful salt marshes are as important as they are iconic.  They act as carbon sinks, protect coastal development from storm surge, play an outsized role in nitrogen cycling, and provide critical habitats for many fish, shellfish, and coastal birds.

According to scientists from the Marine Biological Laboratory in Woods Hole, Massachusetts, more than 90% of salt marshes around the world are likely to be underwater by the end of the century. 

Since 1971, scientists from the Marine Biological Laboratory have mapped vegetative cover in Great Sippewissett Marsh in Falmouth, Massachusetts, to examine whether increased nitrogen in the environment would impact species of marsh grass.  Because of the length of the study, the researchers were also able to investigate the impacts of climate change on the ecosystem, especially those driven by accelerating sea level rise. 

The research team found that increased nitrogen favored higher levels of vegetation and accretion of the marsh surface.  However, the researchers found that salt marshes will not be able to outpace the submergence from global sea level rise – no matter how much nitrogen is applied.

Sea level rise is the biggest threat to salt marshes around the world.  Mitigating some of these projected losses is critical in order for salt marshes to continue to provide their important ecosystem services for people and the planet.  

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Most of the World’s Salt Marshes Could Succumb to Sea Level Rise by Turn of Century

Photo, posted September 27, 2011, courtesy of Chris M Morris via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

An Iron-Air Battery Plant | Earth Wise

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Lithium-ion batteries are the standard energy source for electric vehicles, and they are also the dominant technology for storing energy in the electric grid.  However, they are not the only game in town.  There are other battery technologies that have various potential advantages over lithium-ion and some of them are getting the chance to show what they can do.

One is the iron-air battery.  Unlike lithium-ion batteries that require expensive and strategically challenging materials like lithium, cobalt, nickel, and graphite, iron-air batteries make use of one of the most common elements in the earth’s crust.

Iron-air batteries operate on a principle known as “reversible rusting”.  When discharging, the battery takes in oxygen from the air and converts iron into rust.  While charging, electrical current converts rust back into iron and the battery releases oxygen.  Batteries consist of a slab of iron, a water-based electrolyte, and a membrane that feeds a controlled stream of air into the battery. 

A Massachusetts-based company called Form Energy is building a $760 million iron-air battery storage facility in the city of Weirton in West Virginia.  Investment financing along with a $290 million government incentive package is paying for the facility. 

The facility is designed to address the need for long-duration energy storage and will be capable of storing electricity for 100 hours at competitive prices.  The battery modules will be about the size of a side-by-side washer/dryer and will contain a stack of 50 3-foot-tall cells.  Such batteries are too big and heavy for use in cars but will be cheaper and higher-capacity than equivalent lithium-ion battery systems.

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Form Energy selects West Virginia for its first iron-air battery plant

Photo credit: Form Energy

Earth Wise is a production of WAMC Northeast Public Radio

Banning Gas-Powered Cars | Earth Wise

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In June, the European Union voted to ban the sale of new gas- and diesel-powered vehicles starting in 2035.   The EU joined Canada, the United Kingdom, Japan, South Korea, and several other countries in imposing future gas car bans.

Here in the U.S., on August 25th, California adopted rules banning the sales of new gas-powered cars and light trucks by 2035.  New York passed a similar law last year and its ban will also cover heavy trucks by 2045.

California’s action is particularly significant because there are other states that have trigger laws that impose their own bans based on what California does.  Washington state, Massachusetts, and Virginia are in this category, although the governor of Virginia has said he plans to try to repeal the law.

An additional 12 states have policies tied to California’s and are likely to adopt their own versions of the 2035 ban.  These are Colorado, Connecticut, Delaware, Maine, Maryland, New Jersey, New Mexico, Nevada, Oregon, Pennsylvania, Rhode Island, and Vermont.

When these regulatory actions are coupled with the major investments in electric vehicles being made by virtually all automakers, the transition to electric vehicles appears to be inevitable.

As far as people who love their gas-powered cars are concerned, the new rules only apply to new car sales.  So, consumers can still buy and own used cars that run on gasoline.  If there are states that never impose bans on new gas-powered vehicles, then consumers can go to those states and buy one, assuming there are any being made at that point.   It seems likely that gas-powered cars will end up being made for hobbyists and aficionados only. 

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California Just Banned Gas-Powered Cars. Here’s Everything You Need to Know

Photo, posted May 20, 2018, courtesy of James Loesch via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Offshore Wind Ramping Up In The Northeast | Earth Wise

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There is a growing number of large offshore wind projects in the pipeline in the Northeast.  The large Vineyard Wind project off the coast of Massachusetts began construction in November.  Contracts for the Empire Wind and Beacon Wind projects in New York were finalized in January.

The first offshore wind project to begin construction in New York broke ground in February.  South Fork Wind, a 132-megawatt project located about 19 miles southeast of Block Island, Rhode Island, is expected to come online in 2023.

New York’s goal is to develop 9 gigawatts of offshore wind by 2035 and the state is investing $500 million to set up manufacturing and supply chain infrastructure for offshore wind.  Major facilities will be built in the South Brooklyn Marine Terminal and in the Port of Albany.

Meanwhile, Massachusetts recently announced that the site of the last coal-fired power plant in that state will become the home of its first offshore wind manufacturing facility.

The Brayton Point power plant in Somerset was shut down in 2017 after more than 50 years of operation.  The site, located on Mount Hope Bay near Providence, Rhode Island, will host a $200 million facility for the manufacturing of undersea transmission lines used to connect the grid to offshore wind turbines.  The first of these will be the Vineyard Wind’s Commonwealth Wind project, which will generate 1.2 gigawatts of electricity.

Both New York and Massachusetts are investing in the opportunities afforded by the soon-to-be booming offshore wind industry.  With numerous windfarms planned up and down the Atlantic coast, manufacturing, maintenance, and support infrastructure will be big business for the two states.

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Work starts on New York’s first offshore wind project

Former Coal Power Site in Massachusetts to Become Offshore Wind Plant

Photo, posted May 13, 2011, courtesy of SSE via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Five States Stepping Up On Clean Energy | Earth Wise

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While Congress continues to face partisan gridlock on climate issues, many states have moved forward with climate action.

In 2021, five states – Illinois, Massachusetts, Oregon, North Carolina, and Rhode Island – passed laws requiring a shift to 100% carbon-free electricity or net-zero emissions.  Washington State passed a law that helps to implement its strong 2019 and 2020 climate and clean energy laws.  Washington’s new legislation establishes a carbon trading program that will help the state to meet its goals of economy-wide emission cuts and 100% carbon-free electricity.

Several other states made progress on climate and clean energy by taking targeted actions not quite as aggressive as 100% laws, but significant, nonetheless.

The five states that entered the so-called 100% club joined with the six states that had earlier passed such legislation.  Those are California, Hawaii, New Mexico, New York, Virginia, and Washington.  Both Puerto Rico and Washington D.C. are also members of the club.

The past year may well be the biggest year yet for significant clean energy legislation.  Some of the states that finally passed laws had been gearing up for it for years.  This is particularly true of Massachusetts and Illinois.

Actions by individual states are not an antidote to inaction by the federal government, but they help.  At this point, about one-third of the country’s population lives in states that have laws requiring a transition to 100% carbon-free electricity, 100% renewable electricity, or net-zero emissions. 

All of this activity began in 2015, when Hawaii passed its renewable energy law.

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Inside Clean Energy: Here Are 5 States that Took Leaps on Clean Energy Policy in 2021

Photo, posted August 12, 2021, courtesy of Glacier NPS via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Vineyard Wind Prepares For Construction | Earth Wise

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Vineyard Wind 1 will be the first utility-scale offshore wind energy project in the United States.  It will be located 15 miles off the coast of Massachusetts and will consist of an array of 62 wind turbines, spaced one nautical mile apart.  It will generate 800 megawatts of electricity, enough to power over 400,000 homes.

The project has recently closed on $2.3 billion of senior debt financing, which sets the stage for construction to begin.  The joint venture between Avangrid Renewables and Copenhagen Infrastructure partners is one of the single largest investments in a renewable energy project in the U.S.  The financial close is basically the final milestone for launching the project following years of clearing regulatory and other hurdles.

With the financial closing, Vineyard Wind will be instructing its contractors to begin work.  Onshore work will start this fall and offshore work will begin in 2022.

The project will use Haliade-X wind turbine generators made by GE.  These are some of the largest and most powerful wind turbines currently available, each one capable of generating 13 megawatts of electricity.  The electricity generated by the turbines will be collected by an offshore substation and then transmitted to shore.  Two submarine cables will bring the electricity from the substation to a landing point in Barnstable.  The cables will be buried six feet below the seafloor.  Underground cables will then route the power to an onshore substation in the village of Hyannis where it will be connected to the New England Grid.

Vineyard Wind is the first of many offshore wind farms in the works for the Northeastern United States.

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U.S.’s first commercial-scale offshore wind project prepares for construction

Photo, posted March 24, 2016, courtesy of Andy Dingley via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Major Funding For Novel Energy Storage | Earth Wise

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The accelerating adoption of wind and solar energy is driving a growing interest in energy storage technologies.  An electric grid dominated by intermittent power sources will need large-scale energy storage.  Grid-scale energy storage is expected to increase at least 10 times over the next decade and this will require nearly $300 billion in investments over that time period.

Much of the effort in energy storage has focused on battery storage.  But there are other storage technologies that are attracting attention and investment.

Energy Vault is a Swiss-based company specializing in gravity and kinetic energy-based energy storage.  Their technology uses a multi-headed crane to store energy generated by renewable sources by stacking heavy blocks made of composite material into a tower, capturing potential energy from the elevation gain of the blocks.  To produce electricity, the crane lowers the blocks to the ground, driving generators in the process.  The company has just raised $100 million in funding from investors. 

Malta, Inc. is an energy storage company based in Cambridge, Massachusetts that is developing an electro-thermal energy storage system.  Energy generated from renewable (or other) sources drives a heat pump to create thermal energy producing both hot and cold reservoirs.  The heat is then stored in molten salt while the cold is stored in a chilled liquid.  To generate electricity, the temperature difference between the two reservoirs is used to drive a heat engine.  Malta has recently raised $60 million in new funding including significant support from Chevron Energy Ventures.

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Energy Vault Raises $100 Million In Series C Funding

Chevron backs long-duration thermal energy storage developer Malta

Photo, posted October 16, 2019, courtesy of Jonathan Cutrer via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Is U.S. Offshore Wind Finally Happening? | Earth Wise

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Offshore wind capacity has been growing rapidly in recent years, especially in Europe and China.  Globally, there is now more than 30 GW of offshore wind and industry experts predict that there will be well over 200 GW of installed capacity by 2030.

Meanwhile, the U.S. has only two small pilot projects, one with five turbines off Rhode Island and another with two turbines off Virginia.  But after many years of battles with determined opponents, false starts, regulatory struggles, and other hurdles, the U.S. offshore wind industry appears to be poised to take off.

A combination of significant commitments by power companies to purchase offshore wind power, strong support by the Biden administration, and billions of dollars in investments is creating the new-found momentum.

New York, New Jersey, Virginia, Massachusetts, Connecticut, Rhode Island, and Maryland have collectively committed to buying 30 GW of offshore electricity by 2035.  (That’s enough to power roughly 20 million homes).

Among the first major offshore installations to be completed in the next few years in the U.S. will be Vineyard Wind, 15 miles off of Martha’s Vineyard, another wind farm 60 miles east of New York’s Montauk Point, a third fifteen miles off Atlantic City, New Jersey, and a fourth off the Virginia Coast.

Offshore wind projects will create nearly 40,000 jobs just in the New York-New Jersey area over the next ten years.  There is still some opposition from elements of the commercial fishing industry and from some coastal residents.  However, with state and federal governments committed to reducing carbon emissions and rapidly reducing regulatory barriers, and with the price of offshore wind continuing to get lower and lower, most observers agree that the U.S. offshore wind industry is finally on the verge of really getting going.

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On U.S. East Coast, Has Offshore Wind’s Moment Finally Arrived?

Photo, posted August 9, 2016, courtesy of Lars Plougmann via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Giant Jellyfish | Earth Wise

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There have been recent news stories about giant jellyfish washing ashore from Maine to the south coast of Massachusetts.  These stories have claimed that some of these lion’s mane jellyfish have been the largest on record and even might be the largest animals in the ocean.

The truth of these accounts is rather suspect.  For one thing, it is rather difficult to measure the size of a jellyfish when it is out of the water.  Gravity compresses and spreads out the bell portion of the animal, and that makes up the bulk of its mass.  For example, a jellyfish bell that measures four feet across on the beach would appear to be much smaller if the animal was floating in the water.

Some claims that lion’s mane jellyfish are larger than blue whales date back a full century and are very much disputable.  The claimed size certainly included the animal’s long tentacles, and such things hardly compare with a blue whale.

In any event, the current spate of jellyfish sightings is not necessarily that unusual.  Many factors influence jellyfish populations, including water temperature and food supply.  It is possible that warming water temperatures may be influencing the jellyfish population this year, but there is not enough data to know for sure.

People do need to be cautious around lion’s mane jellyfish.  They do sting and while their stings are not as bad as those of a number of other species, they can be a problem for people who have allergic reactions.  Furthermore, the stinging cells remain active in a jellyfish that has washed ashore.

Sightings of these animals are continuing, and reports of larger specimens continue as well, even if they don’t compare with blue whales.

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Jellyfish larger than blue whales?

Photo, posted September 13, 2015, courtesy Derek Keats via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Massachusetts And Energy Policy | Earth Wise

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The transition to a renewables-based energy future continues to accelerate, but there are still many forces that can slow it down.  Government policy has a major role to play.  At the moment, the federal government is trying to prop up the fossil fuel industry with financial incentives and rampant deregulation.  So more than ever, innovative policies at the state level are essential drivers for revolutionizing the energy system.

One state where policy is trying to make a big difference is Massachusetts, which has created the Clean Peak Energy Standard or CPS, finalized and approved in late March and now taking effect.   A clean peak standard is a regulatory tool to reduce the costs and environmental impact of periods when electricity demand is highest, and generation tends to be the most polluting.  The CPS requires electric retailers to procure a minimum percentage of their annual electricity sales from renewable generation or energy storage.  That minimum amount will increase each year.

The CPS is formulated to incentivize better utilization of clean energy technologies to supply power when energy demand is high.  The problem is that there are times when the sun is not shining and the wind isn’t blowing, but energy demand is at its highest.  The solution is to use energy storage technologies that can supply power when it is needed.  Furthermore, storage can be relied upon during times of extreme weather that cause power outages.

Massachusetts has already started using energy storage in its grid.  The small town of Sterling installed an energy storage system in 2016 that provides crucial backup power to the police station and emergency dispatch center, thereby keeping first responder operations running even during extended power outages.

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Massachusetts is setting the benchmark for nationwide clean energy transformation

Photo, posted March 30, 2012, courtesy of Flickr.

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