Geothermal
Nesjavellir Geothermal power plant- Iceland
Nesjavellir Geothermal Power Plant is a geothermal power station located in Iceland, about 30 kilometers east of Reykjavik. It is one of the largest geothermal power plants in Iceland and generates approximately 120 MW of electricity and 1,100 liters of hot water per second.
The power plant utilizes the high-temperature geothermal reservoirs of the Hengill volcanic system, which is located beneath the Nesjavellir area. The reservoirs consist of superheated water and steam that are extracted from wells drilled into the ground. The steam is then used to power turbines, which generate electricity, while the hot water is used for heating and other purposes.
One of the unique features of the Nesjavellir Geothermal Power Plant is that it is not only used for generating electricity, but also for supplying hot water to the nearby capital city of Reykjavik. The hot water is transported through a network of pipelines to homes and buildings in the city, providing heating and hot water for the residents.
In addition to its energy production, the Nesjavellir Geothermal Power Plant is also a popular tourist attraction, with visitors able to take guided tours of the facility and learn about the geothermal energy generation process.
History of Nesjavellir Geothermal power plant- Iceland
The history of the Nesjavellir Geothermal Power Plant dates back to the 1950s when the Icelandic government started exploring the country’s geothermal resources for energy production. The Hengill volcanic system, which is located beneath the Nesjavellir area, was identified as a potential source of geothermal energy.
In the 1970s, the Icelandic government commissioned a feasibility study to assess the potential of the Hengill geothermal reservoirs for power generation. The study concluded that the reservoirs had the potential to produce enough electricity to meet the country’s growing energy demands.
Construction of the Nesjavellir Geothermal Power Plant began in 1987, and the first phase of the project was completed in 1990. The power plant initially had a capacity of 60 MW, which was later increased to 120 MW with the addition of more turbines and generators.
In addition to electricity generation, the Nesjavellir Geothermal Power Plant was also designed to supply hot water to the nearby capital city of Reykjavik. The construction of a 27-kilometer pipeline to transport the hot water to Reykjavik was completed in 1997.
Over the years, the Nesjavellir Geothermal Power Plant has undergone several upgrades and improvements to increase its efficiency and capacity. Today, it is one of the largest and most efficient geothermal power plants in Iceland, providing a significant portion of the country’s electricity and hot water needs.
Nesjavellir Geothermal power plant- Iceland, operated by
The Nesjavellir Geothermal Power Plant is operated by Orka Náttúrunnar (ON Power), which is a subsidiary of Reykjavik Energy. The power plant is located in the south-west of Iceland, about 30 km from the capital city of Reykjavik, and it is one of the largest geothermal power plants in the country. It has a capacity of 120 MW of electricity and 300 MW of thermal energy, and it provides electricity and hot water to the capital region of Iceland.
The Nesjavellir Geothermal Power Plant utilizes the natural energy resources of the Nesjavellir area, which is a high-temperature geothermal field located in a volcanic system. The plant uses geothermal steam and hot water from the ground to power turbines and produce electricity, which is then distributed through the Icelandic power grid. The remaining hot water and steam is used for district heating, which provides hot water and heating to homes and businesses in the surrounding area.
The power plant has been in operation since 1990 and has played a significant role in the transition of Iceland from a fossil fuel-based energy system to a renewable energy-based system. The country now generates almost 100% of its electricity from renewable energy sources, with geothermal energy accounting for about one-third of that total.
Nesjavellir Geothermal power plant- Iceland, financial and international investment
The Nesjavellir Geothermal Power Plant was funded by a combination of private and public funds. The total cost of the project was about 400 million USD, with the majority of the funding coming from the Icelandic government, the Nordic Development Fund, and the European Investment Bank.
The power plant has also attracted international investment, with companies from around the world investing in Iceland’s geothermal energy sector. For example, in 2019, the U.S. company Geothermal Development Associates (GDA) announced plans to invest up to 500 million USD in the development of geothermal energy projects in Iceland, including the expansion of the Nesjavellir Geothermal Power Plant.
In addition to attracting foreign investment, the Nesjavellir Geothermal Power Plant has also been a source of revenue for the Icelandic government. The power plant is owned and operated by ON Power, which is a subsidiary of Reykjavik Energy, a publicly owned utility company. The profits generated by the power plant are used to fund the operations of Reykjavik Energy and to support the development of new renewable energy projects in Iceland.
Overall, the Nesjavellir Geothermal Power Plant has been a successful example of how geothermal energy can be used to generate electricity and provide heating to communities, while also attracting investment and supporting economic growth. It has also helped Iceland to become a leader in renewable energy and to reduce its dependence on fossil fuels.
https://www.exaputra.com/2023/04/nesjavellir-geothermal-power-plant.html
Renewable Energy
Off-Grid Solar Power Simplified – Off-Grid 101
Renewable Energy
Offshore Turbine Toilets, BlackRock’s $38B Acquisition
Weather Guard Lightning Tech
Offshore Turbine Toilets, BlackRock’s $38B Acquisition
OEG celebrates 500 offshore turbine toilet installations while BlackRock acquires AES for $38 billion, signaling continued investment despite global wind auction slowdowns and European wind droughts.
Sign up now for Uptime Tech News, our weekly email update on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on Facebook, YouTube, Twitter, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary Barnes’ YouTube channel here. Have a question we can answer on the show? Email us!
Welcome to Uptime News. Flash Industry News Lightning fast. Your host, Allen Hall, shares the renewable industry news you may have missed.
Allen Hall 2025: There’s good news today from the wind energy sector, and it starts of all places with toilets. OEG and Aberdeen Headquartered company just reached a milestone. They’ve installed their 500th in turbine welfare unit across the UK’s offshore wind sector. If you’ve ever worked on an offshore wind turbine, you know why this matters.
These aren’t just convenience facilities. Their dignity and their safety. The other difference between a dangerous transfer to a standby vessel and staying on the job. The units operate in the harshest offshore conditions with no external power or water. Nine offshore wind farms now have these facilities and they’re making offshore work accessible for [00:01:00] women helping retain a more diverse workforce.
And while OEG celebrates 500 installations, something much larger is happening in the American Midwest. Gulf Pacific Power. Just completed a major transaction with NL Green Power North America. Gulf Pacific acquired all of E L’s interest in five operating wind facilities, totaling over 800 megawatts of capacity.
The portfolio includes Prairie Rose in Minnesota, Goodwill and Origin, and Rocky Ridge in Oklahoma, and a facility in North Dakota. Projects with long-term power purchase agreements and high credit counterparties. And then there’s BlackRock. The world’s largest asset manager is placing a $38 billion bet on American clean energy.
They’re close to acquiring power Giant a ES, which have give BlackRock ownership of nearly eight gigawatts of wind power capacity. A [00:02:00] ES leads in sign deals with data center customers with artificial intelligence driving unprecedented electricity demand. That positioning matters.
The weather numbers tell their own story about wind’s challenging year. Most of Europe recorded wind speeds four to 8% below normal in the first half of this year. The wind drought curtailed generation in Germany, Spain, France, and the United Kingdom. But the Northeastern United States saw winds seven to 10% above average in parts of Norway, Sweden, and Northern China also benefited.
And in storm, Amy, which is passing through the uk, it drove wholesale electricity prices negative for 17 hours. 20 gigawatts of wind power flooded the grid and the grid paid users to consume electricity. Too much wind, not enough demand. The offshore wind industry faces real headwinds. Global awards fell more than 70% in the first nine months of this year.
Of about 20 gigawatts of expected auctions, [00:03:00] only 2.2 gigawatts have been awarded. Germany, the Netherlands and Denmark are preparing new frameworks to restore investor confidence and Japan designated two promising offshore zones, but confidence there is still shaken when Mitsubishi pulled out of its first auction due to some sorry costs.
So here’s what we have. An Aberdeen company celebrating 500 toilet installations that transform working conditions. A Midwestern power company expanding its wind portfolio by 800 megawatts and the world’s largest asset manager, betting $38 billion on American energy infrastructure.
All while offshore auctions stall globally, all while Europe experiences a wind drought and the UK experiences at times too much wind. The sector faces challenges US federal opposition, variable weather, and market slowdowns, but the fundamentals haven’t changed. Data centers. Need power and [00:04:00]someone has to generate those megawatts and companies are still buying wind farms.
Asset managers, are still making billion dollar bets, and engineers are still improving infrastructure. One toilet at a time. When a company celebrates its 500th toilet installation, it’s about commitment to an industry they believe has a future. When investors acquire 800 megawatts of operating capacity, they’re betting on tomorrow.
And when the world’s largest asset manager places a $38 billion bet. They’re looking past the turbulence to see the demand. 500 reasons to believe each one installed in a turbine tower. Each one making life better for workers in harsh conditions.
Each. One. A sign that this industry isn’t going anywhere.
https://weatherguardwind.com/offshore-toilets-blackrock/
Renewable Energy
New Jersey’s Electricity Rate Crisis Is A Perfect Storm for Wind Energy
Weather Guard Lightning Tech
New Jersey’s Electricity Rate Crisis Is A Perfect Storm for Wind Energy
New Jersey ratepayers received an unwelcome surprise in June 2024 when electricity rates jumped between 17 and 20 percent virtually overnight. But behind the dramatic increase is a much larger story about the challenges facing renewable energy deployment, grid modernization, and the future of power generation across the PJM Interconnection region—one that has significant implications for the wind energy industry.
According to Kyle Mason, Associate Planner at the Regional Plan Association, the rate spike stems from record high prices in PJM’s annual capacity auction, which secures power for peak grid loads. PJM operates the grid for New Jersey and 12 other states, covering over 60 million people. The capacity market’s unprecedented pricing “trickled down to increased electricity rates for New Jersey rate payers,” Mason explained.
Old Grid, New Demands
“We have a very old grid, and we’re trying to update it in real time,” said RPA’s Robert Freudenberg – while bringing more energy onto the system. “It’s like trying to build the plane while you’re flying it.”
Freudenberg, Vice President of the Energy & Environment Program at RPA, described the crisis as a convergence of multiple factors: the grid’s age presents challenges, the interconnection process has slowed dramatically, and demand is skyrocketing.
The interconnection queue process, which once took a few years, now stretches across many years. According to Mason, as of April of last year, over 200 gigawatts of projects sat waiting for study in the interconnection queue, with approximately 98 percent comprising solar, wind (both onshore and offshore), and storage. Even if only half of those projects eventually come online, Mason noted, “it would markedly improve the rate situation.”
Unprecedented Demand Growth
The energy demand situation is compounded by explosive load growth, driven largely by artificial intelligence and data centers. Mason noted that current projections show load growth reaching five percent annually—levels, he said, “we have not seen…since air conditionings were invented.”
These aren’t small facilities. “The industry is seeing massive, massive expansion of data centers,” Mason said. “Not just small data centers that we saw expand during the years leading up to the dot-com bubble, but rather these massive hundred-plus megawatt data centers,” primarily concentrated in Northern Virginia, New Jersey, Pennsylvania, and Ohio.
By 2030, data centers alone could account for 10 to 12 percent of electricity demand on the PJM grid—a staggering figure that underscores the urgency of bringing new generation capacity online quickly.
Offshore Wind “Ideal Solution” for Energy Island
New Jersey, the most densely populated state in the country, uses more energy than it produces. Thanks to that distinction and its geographic constraints, it’s referred to as an “energy island”- where wind represents an ideal solution for large scale generation.
The state had plans for approximately five gigawatts of offshore wind capacity, including the 1,100-megawatt Ocean Wind project, which has since been abandoned. Federal policy shifts have further complicated the landscape, effectively putting offshore wind development on ice across the region.
Freudenberg pointed to the South Fork Wind farm off Long Island as proof of concept.
“If you look at the data from that, [South Fork] is performing very well. It’s reliable,” he said, noting it put a thousand people to work and stabilized rates for customers.
Grid Reliability Challenges
Adding another layer of complexity, PJM recently implemented stricter reliability rules that dramatically reduced the amount of generation qualifying as reliable.
“The buffer dropped from about 16 gigawatts of supposedly reliable energy sources to about 500 megawatts when the reliability requirements were issued,” Weather Guard Lightning Tech CEO and Uptime Podcast host Allen Hall notes in the interview.
“Many fossil fuel plants face reliability concerns during extreme weather events, extreme cold events,” Mason explained. That made the older plants ineligible to enter PJM’s capacity market under the new rules. That caveat simultaneously removes baseload capacity while renewable projects remain stuck in the interconnection queue.
Is PJM’s Progress Too Little, Too Late?
PJM has made some progress addressing interconnection challenges. Working with the Federal Energy Regulatory Commission, the grid operator implemented a new cluster study process that prioritizes projects on a “first ready to serve basis” rather than first-come, first-serve. Mason reported they’ve already studied over 40 gigawatts of energy, “and that’s starting to get built,” Mason said.
“But there’s the question of whether that can outpace the rising demand,” he said.
On transmission infrastructure—a critical bottleneck for wind energy—the average timeline to build high voltage transmission lines stretches to 10 years. Mason noted projects face “years and years just to get the materials to build power plants, and then 10 years with permitting costs and supply chain issues and permitting timelines to build the transmission wires.”
Policy Recommendations: States to Lead the Way
Despite federal headwinds, Freudenberg urged states to maintain momentum on offshore wind.
“States need to keep the charge on for offshore wind. They need to keep the fire burning for it,” he said, recommending that states prepare transmission infrastructure and work with developers so projects can move forward quickly when federal policy shifts.
New Jersey has taken some positive steps, recently announcing its Garden State Energy Storage Program that targets over two gigawatts of storage capacity and releasing grid modernization standards for utilities.
Of course, when utilities are required to modernize, rate payers usually foot (most of) the bill. Still, having an available, reliable energy supply is the first order of business.
For wind energy operators and stakeholders, the New Jersey situation illustrates both the critical need for renewable generation and the complex policy, infrastructure, and market challenges that must be navigated to deliver it.
As Freudenberg summarized: “The ingredients here are so good for offshore wind. Everything… the proximity, the wind speeds. All we have to do is build those things and connect them into our grid and we’ve got a lot of power.”
The question is whether policy will allow that to happen before the grid crisis deepens further. We’ll be watching closely!
Listen to the full interview with Allen Hall, Joel Saxum, Kyle Mason and Robert Freudenberg here and subscribe to Uptime Tech News, our free weekly newsletter, today!
Image: PJM https://www.pjm.com/-/media/DotCom/about-pjm/pjm-zones.pdf
https://weatherguardwind.com/could-wind-energy-reduce-new-jersey-electricity-rates/
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