A recent report published by Photon International magazine has revealed that Germany's total photovoltaic installations could reach 10,000 megawatts (MW) by the end of 2009.
The magazine conducted the study based on responses from 119 grid operators and solar equipment manufacturers. The photovoltaic generating capacity installed during 2009 is reported to be between 3,000 and 4,000 MW, a much higher figure than the estimate provided by the Germany's Federal Ministry of Environment.
However, the figure is in line with an earlier estimate of 3,850 MW forecast by Photon Consulting. The study indicates that by 2011, electricity production from photovoltaic installations is expected to contribute about 2% to Germany's energy mix.
The report strongly recommends cutbacks on the country's feed-in tariff structure. Germany approved the Renewable Energy Sources Act in 2000, which introduced the concept of feed-in tariffs. Subsequently, the act, which was amended in 2004 and 2008, helped boost the domestic solar and photovoltaic industry. The act requires the grid operator to pay a fixed sum for surplus solar power fed to the national grid. The fixed remuneration varies depending on the size and type of the installation.
The study indicates that since the cost of producing photovoltaic equipment has come down 50%, it is critical to bring down the feed-in tariffs and make this popular renewable energy source an attractive option in the future. Analysts are concerned that if the feed-in tariffs are not revised, the cost of solar power will be considerably and unnaturally higher than other sources, which could hamper the growth of the solar industry.
Despite vociferous campaigns by industry bodies and agencies, only a marginal change in feed-in tariffs is expected in 2010. The previous government indicated a cutback of not more than 9% to 10% per year, which is much lower than the industry prediction of about 30%. After the new government came to power, fears of a hostile policy toward the photovoltaic industry were put to rest. The new administration has been soft-pedaling the issue and has stayed away from major changes.
However, there are reports that the government has pledged to reduce subsidies, which are in the range of 0.25 to 0.43 euros ($0.36 to $0.62) per kilowatt-hour.
From January through September 2009, about 1,500 MW of photovoltaic capacity was connected to the national grid. The German solar energy agency, Bundesverband Solarwirtschaft eV, indicates that despite the economic slowdown, photovoltaic equipment production increased 65% during this time. Sales turnover grew to between 6 billion and 10 billion euros ($8.6 billion and $14.3 billion), with 50% of the revenue coming from exports.
According to a research paper published by EuPD Research, during the next four years Germany is expected to witness investments of about 10 billion euros ($14.3 billion).
Experts indicate that this investment will account for 14% of the annual turnover. By 2013, an estimated 1 billion euros ($1.4 billion) will be spent on research and development. Germany tops the list of solar power producers, followed by Spain, Japan, the U.S., India and China.
RBC Renewable Energy PPA supports a 39 MW Alberta solar project, with Bullfrog Power and BluEarth Renewables, advancing clean energy in a deregulated market through a long-term power purchase agreement in Canada today.
Key Points
A long-term power purchase agreement where RBC buys most output from a 39 MW Alberta solar project via Bullfrog Power.
✅ 39 MW solar build in County of Forty Mile, Alberta
✅ Majority of output purchased by RBC via Bullfrog Power
✅ Supports cost-competitive renewables in deregulated market
The Royal Bank of Canada says it is the first Canadian bank to sign a long-term renewable energy power purchase agreement, a deal that will support the development of a 39-megawatt, $70-million solar project in southern Alberta, within an energy powerhouse province.
The bank has agreed with green energy retailer Bullfrog Power to buy the majority of the electricity produced by the project, as a recent federal green electricity contract highlights growing demand, to be designed and built by BluEarth Renewables of Calgary.
The project is to provide enough power for over 6,400 homes and the panel installations will cover 120 hectares, amid a provincial renewable energy surge that could create thousands of jobs, the size of 170 soccer fields.
The solar installation is to be built in the County of Forty Mile, a hot spot for renewable power that was also chosen by Suncor Energy Inc. for its $300-million 200-MW wind power project (approved last year and then put on hold during the COVID-19 pandemic), and home to another planned wind power farm in Alberta.
BluEarth says commercial operations at its Burdett and Yellow Lake Solar Project are expected to start up in April 2021, underscoring solar power growth in the province.
READ MORE: Wind power developers upbeat about Alberta despite end of power project auctions
It says the agreement shows that renewable energy can be cost-competitive, with lower-cost solar contracts in a deregulated electricity market like Alberta’s, adding the province has some of the best solar and wind resources in Canada.
“We’re proud to be the first Canadian bank to sign a long-term renewable energy power purchase agreement, demonstrating our commitment to clean, sustainable power, as Alberta explores selling renewable energy at scale,” said Scott Foster, senior vice-president and global head of corporate real estate at RBC.
REPowerEU Plan accelerates the EU's shift from Russian fossil fuels with renewable energy, energy efficiency, solar, wind, heat pumps, faster permits, and energy security measures by 2027, backed by grants, loans, and grid investments.
Key Points
EU plan to quit Russian fossil fuels via renewables and efficiency, with faster permits, by 2027.
✅ €300bn in grants and loans for efficiency and renewables
✅ Streamlined permits; solar mandate on new buildings
The European Union’s executive arm moved Wednesday to jump-start plans for the 27-nation bloc to abandon Russian energy amid the Kremlin’s war in Ukraine, proposing a nearly 300 billion-euro ($315 billion) package that includes more efficient use of fuels and faster rollout of renewable power, even as rolling back electricity prices remains challenging.
The European Commission’s investment initiative is meant to help the 27 EU countries start weaning themselves off Russian fossil fuels this year, a move many see as a wake-up call to ditch fossil fuels across Europe. The goal is to deprive Russia, the EU’s main supplier of oil, natural gas and coal, of tens of billions in revenue and strengthen EU climate policies.
“We are taking our ambition to yet another level to make sure that we become independent from Russian fossil fuels as quickly as possible,” European Commission President Ursula von der Leyen said in Brussels when announcing the package, dubbed REPowerEU.
With no end in sight to Russia’s war in Ukraine and European energy security shaken, amid what some describe as an energy nightmare for the region, the EU is rushing to align its geopolitical and climate interests for the coming decades. It comes amid troubling signs that have raised concerns about energy supplies that the EU relies on and have no quick replacements for, including Russia cutting off member nations Poland and Bulgaria after they refused a demand to pay for natural gas in rubles.
The bloc’s dash to ditch Russian energy stems from a combination of voluntary and mandatory actions. Both reflect the political discomfort of helping fund Russia’s military campaign in a country that neighbors the EU and wants to join the bloc.
An EU ban on coal from Russia is due to start in August, and the bloc has pledged to try to reduce demand for Russian gas by two-thirds by year's end, while debating gas price cap strategies to curb volatility. Meanwhile, a proposed EU oil embargo has hit a roadblock from Hungary and other landlocked countries that worry about the cost of switching to alternative sources.
In a bid to swing Hungary behind the oil phaseout, the REPowerEU package expects oil investment funding of around 2 billion euros for member nations highly dependent on Russian oil.
Energy savings and renewables form the cornerstones of the package, which would be funded mainly by an economic stimulus program put in place to help member countries overcome the slump triggered by the coronavirus pandemic.
The European Commission said the price tag for abandoning Russian fossil fuels completely by a 2027 target date is 210 billion euros. Its package includes 56 billion euros for energy efficiency and 86 billion euros for renewables.
Von der Leyen cited a total funding pot of 72 billion euros in grants and 225 billion euros for loans.
The European Commission also proposed ways to streamline the approval processes in EU countries for renewable projects, which can take up to a decade to get through red tape, as part of a broader effort to revamp the electricity market across Europe. The commission said approval times need to fall to as little as a year or less.
It put forward a specific plan on solar energy, seeking to double photovoltaic capacity by 2025 and pushing for a phased-in obligation to install solar panels on new buildings.
Simone Tagliapietra, an energy expert at the Bruegel think tank in Brussels, called REPowerEU a “jumbo package” whose success will ultimately depend on political will in the bloc’s national capitals, with examples such as Germany’s 200 billion euro energy price shield illustrating the scale of national responses.
“Most of the actions entailed in the plan require either national implementation or strong coordination among member states,” Tagliapietra said. “The extent to which countries really engage is going to be defining.”
The German energy think tank Agora Energiewende said the EU’s plan “gives too little attention to concrete initiatives that reduce fossil fuel demand in the short term and thereby misses the opportunity to simultaneously enhance Europe’s energy security and meet Europe’s climate objectives.”
The group's research shows rapidly expanding solar, wind parks and use of heat pumps for low-temperature heat in industry and buildings could be done faster than constructing new liquefied natural gas terminals or gas infrastructure, said Matthias Buck, its director for Europe.
The European Commission’s recommendations on short-term national actions to cut demand for Russian energy, which include potential emergency measures to limit electricity prices as well, coincide with deliberations underway in the bloc since last year on setting more ambitious EU energy-efficiency and renewable targets for 2030.
Those targets, being negotiated by the European Parliament and national governments, are part of the bloc’s commitments to a 55% cut in greenhouse gases by decade's end, compared with 1990 emissions, and to climate neutrality by 2050.
Von der Leyen urged the European Parliament and national governments to deepen the commission’s July proposal for an energy efficiency target of 9% and renewable energy goal of 40% by 2030. She said those objectives should be 13% and 45%, respectively.
Belgium, the Netherlands, Germany and Denmark plan to build North Sea wind farms to help cut carbon emissions.
EasyPower Webinars deliver expert training on electrical power systems, covering arc flash, harmonics, grounding, overcurrent coordination, NEC and IEEE 1584 updates, with on-demand videos and email certificates for continuing education credits.
Key Points
EasyPower Webinars are expert-led power systems trainings with CE credit details and on-demand access.
✅ Arc flash, harmonics, and grounding fundamentals with live demos
✅ NEC 2020 and IEEE 1584 updates for compliance and safety
✅ CE credits with post-webinar email documentation
We've ramped up webinars to help your learning while you might be working from home, and similar live online fire alarm training options are widely available. As usual, you will receive an email the day after the webinar which will include the details most states need for you to earn continuing education credit, amid a broader grid warning during the pandemic from regulators.
EasyPower's well known webinar series covers a variety of topics regarding electrical power systems. Below you will see our webinars scheduled through the next few months, reflecting ongoing sector investments in the future of work across the electricity industry.
In addition, there are more than 150 videos that were recorded from past webinars in our EasyPower Video Library. The topics of these videos include arc flash training, short circuit, protective device coordination, power flow, harmonics, DC systems, grounding, and many others.
AUGUST WEBINARS
Active & Passive Harmonic Filters in EasyPower
By Tao Yang, Ph.D, PE, at EasyPower
In this webinar, Tao Yang, Ph.D, PE, from EasyPower provides a refresher course on fundamental concepts of harmonics study and the EasyPower Harmonics module. He describes the two major harmonics filters, both active and passive, and their implementation in the EasyPower Harmonics module. As passive filters are widely used in the industry, he covers four kinds of typical passive filters: notch, first order, second order, and C-type filters, including their implementation in EasyPower and their tuning processes. He uses live examples to demonstrate the modeling and parameter tuning for both active and passive filters using simple EasyPower cases.
The National Electrical Code (NEC) outlines several arc-flash mitigation options, aligning with broader arc flash training insights across the industry. This presentation, given by Mark Pollock at Littelfuse, reviews the arc-flash mitigation options from the NEC 2020, and some updates to the IEEE 1584-2018 standard. In addition to understanding the codes, we’ll discuss the return on investment for the various mitigation options and the importance of arc-flash assessments in your facility.
The PowerProtector™ module in EasyPower simplifies the process of coordinating protective devices. In this refresher webinar, Jim Chastain demonstrates the procedure to coordinate ground fault protection for both resistance-grounded and hard-grounded systems.
By James Onsager and Namrata Asarpota at S&C Electric
Coordination of overcurrent protective devices is necessary to limit interruptions to the smallest portion of the power system in the event of an overload or short-circuit. This webinar, given by James Onsager and Namrata Asarpota at S&C Electric, goes over the basics of Time Current Curves (TCCs), types of overcurrent protective devices (for both low-voltage and medium-voltage systems), and how to coordinate between them. Protection of common types of equipment such as transformers, cables and motors according the National Electrical Code (NFPA 70, NEC) is also discussed, alongside related fire alarm training online resources available to practitioners.
Static Discharge Awareness and Explosion Protection
By Christopher Coughlan at Newson Gale, a Hoerbiger Safety Solutions Company
For any person responsible for the safety of employees, colleagues, plant equipment and plant property, one of the most potentially confusing aspects of providing a safe operating environment is understanding and safeguarding again static discharge, with industry leadership in worker safety highlighting best practices. In this webinar given by Christopher Coughlan at Newson Gale, a Hoerbiger Safety Solutions Company, he discusses how to determine if your site’s manufacturing or handling processes have the potential to discharge static sparks into flammable or combustible atmospheres.
XGSLab New Feature - Seasonal Analysis For Grounding Systems
By David Lewis, P.E, Electrical Engineer, Grounding and Power Systems at EasyPower
In regions where the frost depth meets or exceeds the depth of a grounding system, the grounding system’s performance may be dramatically reduced, possibly creating hazardous conditions. The latest XGSLab release 9.5 provides a powerful new tool to analyze grounding system performance that considers the seasonal variation in soil characteristics. In this webinar, given by David Lewis, an electrical engineer at EasyPower, we describe the effect that seasonal variation can have on a grounding system and we step you through the use of the Seasonal Analysis tool.
Gulf Power 40% One-Time Bill Decrease approved by the Florida Public Service Commission delivers a May fuel credit and COVID-19 relief, cutting residential and business costs across rate classes while supporting budgeting and energy savings.
Key Points
PSC-approved fuel credit cutting May electric bills about 40% for homes and 40-55% for businesses as COVID-19 relief.
✅ One-time May fuel credit on customer bills
✅ Residential cut ~40%; business savings 40-55% by rate class
✅ Online tools show daily usage and projected bill
Gulf Power announced that the Florida Public Service Commission unanimously approved its request to issue a one-time decrease of approximately 40% for the typical residential customer bill beginning May 1, similar to recent Georgia Power bill reductions seen elsewhere. Business customers will also see a significant one-time decrease of approximately 40-55% in May, depending on usage and rate class.
"We are pleased that the Florida Public Service Commission has approved our request to deliver this savings to our customers when they need it most. We felt that this was the right thing to do, especially during times like these," said Gulf Power President Marlene Santos. "Our customers and communities now more than ever count on the reliable and affordable energy we deliver, and we are pleased that May bills will reflect this additional, significant savings for our customers."
In Florida, fuel savings are typically refunded to customers over the remainder of the year to provide level, predictable bills. However, given the emergent and significant financial challenges facing many customers due to COVID-19, Gulf Power instead sought approval to give customers the total annual savings in their May bill, similar to a lump-sum electricity credit approach, which will be reflected as a line-item fuel credit on their May statement.
New tools to help save energy and money
Many customers are working from home and, in general, staying at home more. More time and extra people in the home will likely increase power usage, which could lead to higher monthly bills.
Gulf Power recently added new tools to our customers' online account portal to help them better understand and manage their energy usage, including their monthly projected bill amount and a breakdown of daily energy usage, which is available for most residential customers*. Customers can now see their previous day's energy usage using their online account portal to help them more easily understand how their previous day's activities impacted energy usage, allowing them to quickly make adjustments to keep bills low. The new projected bill feature is a valuable tool to assist customers in budgeting for their next month's energy bill.
Additional energy-saving tips that can be implemented with no additional cost or equipment are also available. As always, Gulf Power's free online Energy Checkup tool will provide customers with a customized report based on their home's actual energy use.
Helping customers pay their bills
Gulf Power has a long history of working with its customers during difficult times, including periods of pandemic-related energy insecurity, and will continue to do so. Gulf Power encourages customers that are having difficulty paying their energy bill to visit GulfPower.com/help to view available resources that can provide assistance to qualifying customers.
Customers are encouraged to pay their electric bill balance each month to avoid building up a large balance, which they will continue to bear responsibility for. Gulf Power will work with the customer's personal situation and assist with a solution, similar to how utilities in Texas have waived fees during this period, to help customers fulfill their personal responsibility for their Gulf Power balance.
Those who can afford or want to help others who may need assistance with their energy bill can make a donation to Project SHARE in your online customer portal. Project SHARE donations are added to a customer's monthly bill and all contributions are distributed to local offices of The Salvation Army. Customers in need of utility bill assistance can apply for Project SHARE assistance at The Salvation Army office in their county.
Supporting our communities
The Gulf Power Foundation gave $500,000 to United Way organizations across Northwest Florida to assist those most vulnerable during this time, which has helped support food, housing and other essential needs throughout the region. In addition, the Foundation recently made a $10,000 donation to Feeding the Gulf Coast and launched an employee donation campaign to provide food for our neighbors in need, while Entergy emergency relief fund offers a similar example of industry support. In total, Gulf Power and its fellow NextEra Energy companies and employees have so far committed more than $4 million in COVID-19 emergency assistance funds that will be distributed directly to those in need and to partner organizations working on the frontlines of the crisis to provide critical support to the most vulnerable members of the community.
Lower fuel costs are enabling Gulf Power to issue a one-time decrease of approximately 40% for the typical residential customer bill in May, even as FPL faces a hurricane surcharge controversy in the state - a significant savings amid the ongoing COVID-19 pandemic
Gulf Power will deliver savings to customers through a one-time bill decrease, rather than the standard practice of spreading out savings over the remainder of the year, even as FPL proposes multi-year rate hikes elsewhere
Ontario Clean Energy Adjustment lowers hydro bills by shifting global adjustment costs, cutting time-of-use rates, and using OPG debt financing; ratepayers get inflation-capped increases for four years, then repay costs over 20 years.
Key Points
A 20-year line item repaying debt used to lower rates for 10 years by shifting global adjustment costs off hydro bills.
✅ 17% average bill cut takes effect after royal assent
✅ OPG-managed entity assumes debt for 10 years
✅ 20-year surcharge repays up to $28B plus interest
Ontarians will see lowered hydro bills for the next 10 years, but will then pay higher costs for the following 20 years, under new legislation tabled Thursday.
Ten weeks after announcing its plan to lower hydro bills, the Liberal government introduced legislation to lower time-of-use rates, take the cost of low-income and rural support programs off bills, and introduce new social programs.
It will lower time-of-use rates by removing from bills a portion of the global adjustment, a charge consumers pay for above-market rates to power producers. For the next 10 years, a new entity overseen by Ontario Power Generation will take on debt to pay that difference.
Then, the cost of paying back that debt with interest -- which the government says will be up to $28 billion -- will go back onto ratepayers' bills for the next 20 years as a "Clean Energy Adjustment."
An average 17-per-cent cut to bills will take effect 15 days after the hydro legislation receives royal assent, even as a Nov. 1 rate increase was set by the Ontario Energy Board, but there are just eight sitting days left before the Ontario legislature breaks for the summer. Energy Minister Glenn Thibeault insisted that leaves the opposition "plenty" of time for review and debate.
Premier Kathleen Wynne promised to cut hydro bills and later defended a 25% rate cut after widespread anger over rising costs helped send her approval ratings to record lows.
Electricity bills in the province have roughly doubled in the last decade, due in part to green energy initiatives, and Thibeault said the goal of this plan is to better spread out those costs.
"Like the mortgage on your house, this regime will cost more as we refinance over a longer period of time, but this is a more equitable and fair approach when we consider the lifespan of the clean energy investments, and generating stations across our province," he said.
NDP critic Peter Tabuns called it a "get-through-the-election" next June plan.
"We're going to take on a huge debt so Kathleen Wynne can look good on the hustings in the next few months and for decades we're going to pay for it," he said.
The legislation also holds rate increases to inflation for the next four years. After that, they'll rise more quickly, as illustrated by a leaked cabinet document the Progressive Conservatives unveiled Thursday.
The Liberals dismissed the document as containing outdated projections, but confirmed that it went before cabinet at some point before the government decided to go ahead with the hydro plan.
From about 2027 onward -- when consumers would start paying off the debt associated with the hydro plan -- Ontario electricity consumers will be paying about 12 per cent more than they would without the Liberal government's plan to cut costs in the short term, even though a deal with Quebec was not expected to reduce hydro bills, the government document projected.
But that was just one of many projections, said Energy Minister Glenn Thibeault.
"We have been working on this plan for months, and as we worked on it the documents and calculations evolved," he said.
The government's long-term energy plan is set to be updated this spring, and Thibeault said it will provide a more accurate look at how the hydro plan will reduce rates, even as a recovery rate could lead to higher hydro bills in certain circumstances.
Progressive Conservative critic Todd Smith said the "Clean Energy Adjustment" is nothing more than a revamped debt retirement charge, which was on bills from 2002 to 2016 to pay down debt left over from the old Ontario Hydro, the province's giant electrical utility that was split into multiple agencies in 1999 under the previous Conservative government.
"The minister can call it whatever he wants but it's right there in the graph, that there is going to be a new charge on the line," Smith said. "It's the debt retirement charge on steroids."
ITER Nuclear Fusion advances tokamak magnetic confinement, heating deuterium-tritium plasma with superconducting magnets, targeting net energy gain, tritium breeding, and steam-turbine power, while complementing laser inertial confinement milestones for grid-scale electricity and 2025 startup goals.
Key Points
ITER Nuclear Fusion is a tokamak project confining D-T plasma with magnets to achieve net energy gain and clean power.
✅ Tokamak magnetic confinement with high-temp superconducting coils
✅ Deuterium-tritium fuel cycle with on-site tritium breeding
✅ Targets net energy gain and grid-scale, low-carbon electricity
It sounds like the stuff of dreams: a virtually limitless source of energy that doesn’t produce greenhouse gases or radioactive waste. That’s the promise of nuclear fusion, often described as the holy grail of clean energy by proponents, which for decades has been nothing more than a fantasy due to insurmountable technical challenges. But things are heating up in what has turned into a race to create what amounts to an artificial sun here on Earth, one that can provide power for our kettles, cars and light bulbs.
Today’s nuclear power plants create electricity through nuclear fission, in which atoms are split, with next-gen nuclear power exploring smaller, cheaper, safer designs that remain distinct from fusion. Nuclear fusion however, involves combining atomic nuclei to release energy. It’s the same reaction that’s taking place at the Sun’s core. But overcoming the natural repulsion between atomic nuclei and maintaining the right conditions for fusion to occur isn’t straightforward. And doing so in a way that produces more energy than the reaction consumes has been beyond the grasp of the finest minds in physics for decades.
But perhaps not for much longer. Some major technical challenges have been overcome in the past few years and governments around the world have been pouring money into fusion power research as part of a broader green industrial revolution under way in several regions. There are also over 20 private ventures in the UK, US, Europe, China and Australia vying to be the first to make fusion energy production a reality.
“People are saying, ‘If it really is the ultimate solution, let’s find out whether it works or not,’” says Dr Tim Luce, head of science and operation at the International Thermonuclear Experimental Reactor (ITER), being built in southeast France. ITER is the biggest throw of the fusion dice yet.
Its $22bn (£15.9bn) build cost is being met by the governments of two-thirds of the world’s population, including the EU, the US, China and Russia, at a time when Europe is losing nuclear power and needs energy, and when it’s fired up in 2025 it’ll be the world’s largest fusion reactor. If it works, ITER will transform fusion power from being the stuff of dreams into a viable energy source.
Constructing a nuclear fusion reactor ITER will be a tokamak reactor – thought to be the best hope for fusion power. Inside a tokamak, a gas, often a hydrogen isotope called deuterium, is subjected to intense heat and pressure, forcing electrons out of the atoms. This creates a plasma – a superheated, ionised gas – that has to be contained by intense magnetic fields.
The containment is vital, as no material on Earth could withstand the intense heat (100,000,000°C and above) that the plasma has to reach so that fusion can begin. It’s close to 10 times the heat at the Sun’s core, and temperatures like that are needed in a tokamak because the gravitational pressure within the Sun can’t be recreated.
When atomic nuclei do start to fuse, vast amounts of energy are released. While the experimental reactors currently in operation release that energy as heat, in a fusion reactor power plant, the heat would be used to produce steam that would drive turbines to generate electricity, even as some envision nuclear beyond electricity for industrial heat and fuels.
Tokamaks aren’t the only fusion reactors being tried. Another type of reactor uses lasers to heat and compress a hydrogen fuel to initiate fusion. In August 2021, one such device at the National Ignition Facility, at the Lawrence Livermore National Laboratory in California, generated 1.35 megajoules of energy. This record-breaking figure brings fusion power a step closer to net energy gain, but most hopes are still pinned on tokamak reactors rather than lasers.
In June 2021, China’s Experimental Advanced Superconducting Tokamak (EAST) reactor maintained a plasma for 101 seconds at 120,000,000°C. Before that, the record was 20 seconds. Ultimately, a fusion reactor would need to sustain the plasma indefinitely – or at least for eight-hour ‘pulses’ during periods of peak electricity demand.
A real game-changer for tokamaks has been the magnets used to produce the magnetic field. “We know how to make magnets that generate a very high magnetic field from copper or other kinds of metal, but you would pay a fortune for the electricity. It wouldn’t be a net energy gain from the plant,” says Luce.
One route for nuclear fusion is to use atoms of deuterium and tritium, both isotopes of hydrogen. They fuse under incredible heat and pressure, and the resulting products release energy as heat
The solution is to use high-temperature, superconducting magnets made from superconducting wire, or ‘tape’, that has no electrical resistance. These magnets can create intense magnetic fields and don’t lose energy as heat.
“High temperature superconductivity has been known about for 35 years. But the manufacturing capability to make tape in the lengths that would be required to make a reasonable fusion coil has just recently been developed,” says Luce. One of ITER’s magnets, the central solenoid, will produce a field of 13 tesla – 280,000 times Earth’s magnetic field.
The inner walls of ITER’s vacuum vessel, where the fusion will occur, will be lined with beryllium, a metal that won’t contaminate the plasma much if they touch. At the bottom is the divertor that will keep the temperature inside the reactor under control.
“The heat load on the divertor can be as large as in a rocket nozzle,” says Luce. “Rocket nozzles work because you can get into orbit within minutes and in space it’s really cold.” In a fusion reactor, a divertor would need to withstand this heat indefinitely and at ITER they’ll be testing one made out of tungsten.
Meanwhile, in the US, the National Spherical Torus Experiment – Upgrade (NSTX-U) fusion reactor will be fired up in the autumn of 2022, while efforts in advanced fission such as a mini-reactor design are also progressing. One of its priorities will be to see whether lining the reactor with lithium helps to keep the plasma stable.
Choosing a fuel Instead of just using deuterium as the fusion fuel, ITER will use deuterium mixed with tritium, another hydrogen isotope. The deuterium-tritium blend offers the best chance of getting significantly more power out than is put in. Proponents of fusion power say one reason the technology is safe is that the fuel needs to be constantly fed into the reactor to keep fusion happening, making a runaway reaction impossible.
Deuterium can be extracted from seawater, so there’s a virtually limitless supply of it. But only 20kg of tritium are thought to exist worldwide, so fusion power plants will have to produce it (ITER will develop technology to ‘breed’ tritium). While some radioactive waste will be produced in a fusion plant, it’ll have a lifetime of around 100 years, rather than the thousands of years from fission.
At the time of writing in September, researchers at the Joint European Torus (JET) fusion reactor in Oxfordshire were due to start their deuterium-tritium fusion reactions. “JET will help ITER prepare a choice of machine parameters to optimise the fusion power,” says Dr Joelle Mailloux, one of the scientific programme leaders at JET. These parameters will include finding the best combination of deuterium and tritium, and establishing how the current is increased in the magnets before fusion starts.
The groundwork laid down at JET should accelerate ITER’s efforts to accomplish net energy gain. ITER will produce ‘first plasma’ in December 2025 and be cranked up to full power over the following decade. Its plasma temperature will reach 150,000,000°C and its target is to produce 500 megawatts of fusion power for every 50 megawatts of input heating power.
“If ITER is successful, it’ll eliminate most, if not all, doubts about the science and liberate money for technology development,” says Luce. That technology development will be demonstration fusion power plants that actually produce electricity, where advanced reactors can build on decades of expertise. “ITER is opening the door and saying, yeah, this works – the science is there.”
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