Several Milestones Reached at Nuclear Power Projects Around the World


Barakah nuclear power plant

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Nuclear Power Construction Milestones spotlight EPR builds, Hualong One steam generators, APR-1400 grid integration, and VVER startups, with hot functional testing, hydrostatic checks, and commissioning advancing toward fuel loading and commercial operation.

 

Key Points

Key reactor project steps, from testing and grid readiness to startup, marking progress toward safe commercial operation.

✅ EPR units advance through cold and hot functional testing

✅ Hualong One installs 365-ton steam generators at Fuqing 5

✅ APR-1400 and VVER projects progress toward grid connection

 

The world’s nuclear power industry has been busy in the new year, with several construction projects, including U.S. reactor builds, reaching key milestones as 2018 began.

 

EPR Units Making Progress

Four EPR nuclear units are under construction in three countries: Olkiluoto 3 in Finland began construction in August 2005, Flamanville 3 in France began construction in December 2007, and Taishan 1 and 2 in China began construction in November 2009. Each of the new units is behind schedule and over budget, but recent progress may signal an end to some of the construction difficulties.

EDF reported that cold functional tests were completed at Flamanville 3 on January 6. The main purpose of the testing was to confirm the integrity of primary systems, and verify that components important to reactor safety were properly installed and ready to operate. More than 500 welds were inspected while pressure was held greater than 240 bar (3,480 psi) during the hydrostatic testing, which was conducted under the supervision of the French Nuclear Safety Authority.

With cold testing successfully completed, EDF can now begin preparing for hot functional tests, which verify equipment performance under normal operating temperatures and pressures. Hot testing is expected to begin in July, with fuel loading and reactor startup possible by year end. The company also reported that the total cost for the unit is projected to be €10.5 billion (in 2015 Euros, excluding interim interest).

Olkiluoto 3 began hot functional testing in December. Teollisuuden Voima Oyj—owner and operator of the site—expects the unit to produce its first power by the end of this year, with commercial operation now slated to begin in May 2019.

Although work on Taishan 1 began years after Olkiluoto 3 and Flamanville 3, it is the furthest along of the EPR units. Reports surfaced on January 2 that China General Nuclear (CGN) had completed hot functional testing on Taishan 1, and that the company expects the unit to be the first EPR to startup. CGN said Taishan 1 would begin commercial operation later this year, with Taishan 2 following in 2019.

 

Hualong One Steam Generators Installed

Another Chinese project reached a notable milestone on January 8. China National Nuclear Corp. announced the third of three steam generators had been installed at the Hualong One demonstration project, which is being constructed as Unit 5 at the Fuqing nuclear power plant.

The Hualong One pressurized water reactor unit, also known as the HPR 1000, is a domestically developed design, part of China’s nuclear program, based on a French predecessor. It has a 1,090 MW capacity. The steam generators reportedly weigh 365 metric tons and stand more than 21 meters tall. The first steam generator was installed at Fuqing 5 on November 10, with the second placed on Christmas Eve.

 

Barakah Switchyard Energized

In the United Arab Emirates, more progress has been made on the four South Korean–designed APR-1400 units under construction at the Barakah nuclear power plant. On January 4, Emirates Nuclear Energy Corp. (ENEC) announced that the switchyard for Units 3 and 4 had been energized and connected to the power grid, a crucial step in Abu Dhabi toward completion. Unit 2’s main power transformer, excitation transformer, and auxiliary power transformer were also energized in preparation for hot functional testing on that unit.

“These milestones are a result of our extensive collaboration with our Prime Contractor and Joint Venture partner, the Korea Electric Power Corporation (KEPCO),” ENEC CEO Mohamed Al Hammadi said in a press release. “Working together and benefitting from the experience gained when conducting the same work on Unit 1, the teams continue to make significant progress while continuing to implement the highest international standards of safety, security and quality.”

In 2017, ENEC and KEPCO achieved several construction milestones including installation and concrete pouring for the reactor containment building liner dome section on Unit 3, and installation of the reactor containment liner plate rings, reactor vessel, steam generators, and condenser on Unit 4.

Construction began on the four units (Figure 1) in July 2012, May 2013, September 2014, and September 2015, respectively. Unit 1 is currently undergoing commissioning and testing activities while awaiting regulatory review and receipt of the unit’s operating license from the Federal Authority for Nuclear Regulation, before achieving 100% power in a later phase. According to ENEC, Unit 2 is 90% complete, Unit 3 is 79% complete, and Unit 4 is 60% complete.

 

VVER Units Power Up

On December 29, Russia’s latest reactor to commence operation—Rostov 4 near the city of Volgodonsk—reached criticality, as other projects like Leningrad II-1 advance across the fleet, and was operated at its minimum controlled reactor power (MCRP). Criticality is a term used in the nuclear industry to indicate that each fission event in the reactor is releasing a sufficient number of neutrons to sustain an ongoing series of reactions, which means the neutron population is constant and the chain reaction is stable.

“The transfer to the MCRP allows [specialists] to carry out all necessary physical experiments in the critical condition of [the] reactor unit (RU) to prove its design criteria,” Aleksey Deriy, vice president of Russian projects for ASE Engineering Co., said in a press release. “Upon the results of the experiments the specialists will decide on the RU powerup.”

Rostov 4 is a VVER-1000 reactor with a capacity of 1,000 MW. The site is home to three other VVER units: Unit 1 began commercial operation in 2001, Unit 2 in 2010, and Unit 3 in 2015.

 

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UK Electricity prices hit 10-year high as cheap wind power wanes

UK Electricity Price Surge driven by wholesale gas costs, low wind output, and higher gas-fired generation, as National Grid boosts base load power to meet demand, lifting weekend prices toward decade highs.

 

Key Points

A sharp rise in UK power prices tied to gas spikes, waning wind, and higher reliance on gas-fired generation.

✅ Wholesale gas prices squeeze power, doubling weekend baseload.

✅ Wind generation falls to 3GW, forcing more gas-fired plants.

✅ Tariff hikes signal bill pressure and supplier strain.

 

The UK’s electricity market has followed the lead of surging wholesale gas prices this week to reach weekend highs, with UK peak power prices not seen in a decade across the market.

The power market has avoided the severe volatility which ripped through the gas market this week because strong winds helped to supply ample electricity to meet demand, reflecting recent record wind generation across the UK.

But as freezing winds begin to wane this weekend National Grid will need to use more gas-fired power plants to fill the gap, meaning the cost of generating electricity will surge.

Jamie Stewart, an energy expert at ICIS, said the price for base load power this weekend has already soared to around £80 per megawatt hour, almost double what one would expect to see for a weekend in March.

National Grid will increase its use of expensive gas-fired power by an extra 7GW to make up for low wind power, which is forecast to drop by two-thirds in the days ahead.

Wind speeds helped to protect the electricity system from huge price hikes on the neighbouring gas market on Thursday, by generating as much as 13GW by some estimates.

However, by the end of Friday this output will fall by almost half to 7GW and slump to lows of 3GW by Saturday, Mr Stewart said.

The power price was already higher than usual at £53/MWh last weekend even before the full force of the storms, including Storm Malik wind generation, hit Britain. That was still well above the more typical "mid-40s” price for this time of year, Mr Stewart added.

The twin price spikes across the UK’s energy markets has raised fears of household bill hikes in the months ahead, even as an emergency energy plan is not going ahead.

Late on Thursday Big Six supplier E.on quietly pushed through a dual-fuel tariff increase of 2.6%, to drive the average bill up to £1,153 from 19 April.

Energy supply minnow Bulb also increased prices by £24 a year for its 300,000 customers, blaming rising wholesale costs.

The UK has suffered two gas price shocks this winter, which is the first since the owner of British Gas shuttered the country’s largest gas storage facility at Rough off the Yorkshire coast.

A string of gas supply outages this week cut supplies to the UK just as freezing conditions drove demand for gas-heating a third higher than normal for this time of year.

It was the first time in almost ten years that National Grid was forced to issue a short supply warning to the market that supplies would fall short of demand unless factories agree to use less.

The twelve-year market price highs followed a pre-Christmas spike when the UK’s most important North Sea pipeline shut down at the same time as a deadly explosion at Europe’s most important gas hub, based in the Austrian town of Baumgarten.

 

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Despite delays, BC Hydro says crews responded well to 'atypical' storm

BC Hydro Ice Storm Response to Fraser Valley power outages highlights freezing rain impacts, round the clock crews, infrastructure challenges, and climate change risks across the Lower Mainland during winter weather and restoration efforts.

 

Key Points

A plan for freezing rain events that prioritizes safety, rapid repairs, and clear communication to restore power.

✅ Prioritizes hazards, critical loads, and public safety first

✅ Deploys crews, contractors, and equipment across affected areas

✅ Addresses climate risks without costly undergrounding expansion

 

Call it the straw that broke the llama's back.

The loss of power during recent Fraser Valley ice storms meant Jennifer Quick, who lives on a Mission farm, had no running water, couldn't cook with appliances and still had to tend to a daughter sick with stomach flu.

As if that wasn't enough, she had to endure the sight of her shivering llamas.

"I brought them outside at one point and when I brought them back in, they had icicles on their fur," she said, adding the animals stayed in the warmth of their barn from then on.

For three and a half days, Quick and her family were among more than 160,000 BC Hydro customers in the Fraser Valley left in the dark after ice storms whipped through the region.

BC Hydro expects to get all customers back online Tuesday, five days after the storm hit.

And with another storm possibly on the horizon, the utility is defending its response to the treacherous weather, noting that windstorm power outages can be widespread.

BC Hydro spokesperson Mora Scott said the utility has a "best in class" storm response system, similar to PG&E winter storm prep in the U.S.

"In a typical storm situation we normally have 95 per cent of our customers back up within 24 hours. Ice storms are different and obviously this was an atypical storm for us," she said.

Scott said that in this case, the utility got power back on for 75 per cent of customers within 24 hours. It took the work of 450 employees called in from around B.C., working around the clock, a mobilization echoed by Sudbury Hydro crews after a storm, she said.

The work was complicated by trees falling near crews, icy roads, low visibility and even substations so frozen over the ice had to be melted off with blowtorches.

She said that in the long term, BC Hydro has no plans to make changes to how it responds to extreme ice storms or how infrastructure is built.

"Seeing ice build up in the Lower Mainland like this is a rare event," she said. "So to build for extremes like that probably doesn't make a lot of sense."

 

Climate change will bring storms

But CBC meteorologist Johanna Wagstaffe said that might not always be the case as climate change continues to impact our planet.

"The less severe winter events, like light snowfall, will happen less often," she said. "But the disruptive events — like last week's storm — will actually happen more often and we are already seeing this shift happen."

Marc Eliesen, a former CEO of BC Hydro in the early 1990s, said the utility needs to keep that in mind when planning for worst-case scenarios.

"This [storm] is a condition characteristic of the weather in the east, particularly in Ontario and Quebec, where freezing rain outages in Quebec are more common, which is organized to deal with freezing rain and heavy snow on the lines," he said. "This is a new phenomenon for British Columbia."

Eliesen questions whether BC Hydro has adequate equipment and crew training to deal with ice storms if they become more frequent, pointing to Hydro One storm restoration in Ontario as a comparison.

 

'Always something we can learn'

Scott disagrees with some of Eliesen's points.

She said some of the crews called in to deal with the recent storm come from northern B.C. and the Interior and have plenty of experience with snow.

"There's always something we can learn in every major storm situation," she said.

The idea of putting power lines underground was raised by some CBC readers and listeners, but Scott said running underground lines is five to 10 times the cost of running lines on pole, so it is done sparingly. Besides, equipment like substations and transmission lines need to be kept aboveground.

Meanwhile, Wagstaffe said that beginning Thursday, wintry weather could return to the Lower Mainland.

 

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Power Outage Affects 13,000 in North Seattle

North Seattle Power Outage disrupts 13,000 in Ballard, Northgate, and Lake City as Seattle City Light crews repair equipment failures. Aging infrastructure, smart grid upgrades, microgrids, and emergency preparedness highlight resilience and reliability challenges.

 

Key Points

A major outage affecting 13,000 in North Seattle from equipment failures and aging grid, prompting repairs and planning.

✅ 13,000 customers in Ballard, Northgate, Lake City affected

✅ Cause: equipment failures and aging infrastructure

✅ Crews, smart grid upgrades, and preparedness improve resilience

 

On a recent Wednesday morning, a significant power outage struck a large area of North Seattle, affecting approximately 13,000 residents and businesses. This incident not only disrupted daily routines, as seen in a recent London outage, but also raised questions about infrastructure reliability and emergency preparedness in urban settings.

Overview of the Outage

The outage began around 9 a.m., with initial reports indicating that neighborhoods including Ballard, Northgate, and parts of Lake City were impacted. Utility company Seattle City Light quickly dispatched crews to identify the cause of the outage and restore power as soon as possible. By noon, the utility reported that repairs were underway, with crews working diligently to restore service to those affected.

Such outages can occur for various reasons, including severe weather, such as windstorm-related failures, equipment failure, or accidents involving utility poles. In this instance, the utility confirmed that a series of equipment failures contributed to the widespread disruption. The situation was exacerbated by the age of some infrastructure in the area, highlighting ongoing concerns about the need for modernization and upgrades.

Community Impact

The power outage caused significant disruptions for residents and local businesses. Many households faced challenges as their morning routines were interrupted—everything from preparing breakfast to working from home became more complicated without electricity. Schools in the affected areas also faced challenges, as some had to adjust their schedules and operations.

Local businesses, particularly those dependent on refrigeration and electronic payment systems, felt the immediate impact. Restaurants struggled to serve customers without power, while grocery stores dealt with potential food spoilage, leading to concerns about lost inventory and revenue. The outage underscored the vulnerability of businesses to infrastructure failures, as recent Toronto outages have shown, prompting discussions about contingency plans and backup systems.

Emergency Response

Seattle City Light’s swift response was crucial in minimizing the outage's impact. Utility crews worked through the day to restore power, and the company provided regular updates to the community, keeping residents informed about progress and estimated restoration times. This transparent communication was essential in alleviating some of the frustration among those affected, and contrasts with extended outages in Houston that heightened public concern.

Furthermore, the outage served as a reminder of the importance of emergency preparedness for both individuals and local governments, and of utility disaster planning that supports resilience. Many residents were left unprepared for an extended outage, prompting discussions about personal emergency kits, alternative power sources, and community resources available during such incidents. Local officials encouraged residents to stay informed about power outages and to have a plan in place for emergencies.

Broader Implications for Infrastructure

This incident highlights the broader challenges facing urban infrastructure. Many cities, including Seattle, are grappling with aging power grids that struggle to keep up with modern demands, and power failures can disrupt transit systems like the London Underground during peak hours. Experts suggest that regular assessments and updates to infrastructure are critical to ensuring reliability and resilience against both natural and human-made disruptions.

In response to increasing frequency and severity of power outages, including widespread windstorm outages in Quebec, there is a growing call for investment in modern technologies and infrastructure. Smart grid technology, for instance, can enhance monitoring and maintenance, allowing utilities to respond more effectively to outages. Additionally, renewable energy sources and microgrid systems could offer more resilience and reduce reliance on centralized power sources.

The recent power outage in North Seattle was a significant event that affected thousands of residents and businesses. While the immediate response by Seattle City Light was commendable, the incident raised important questions about infrastructure reliability and emergency preparedness. As cities continue to grow and evolve, the need for modernized power systems and improved contingency planning will be crucial to ensuring that communities can withstand future disruptions.

As residents reflect on this experience, it serves as a reminder of the interconnectedness of urban living and the critical importance of reliable infrastructure in maintaining daily life. With proactive measures, cities can work towards minimizing the impact of such outages and building a more resilient future for their communities.

 

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Dewa in China to woo renewable energy firms

Dewa-China Renewable Energy Partnership advances solar, clean energy, smart grid, 5G, cloud, and Big Data, linking Dewa with Hanergy and Huawei for R&D, smart meters, demand management, and resilient network infrastructure.

 

Key Points

A Dewa collaboration with Hanergy and Huawei to co-develop solar, smart grid, 5G, cloud, and resilient utility networks.

✅ MoU expands solar PV and distributed generation in Dubai and China

✅ Smart grid R&D: smart meters, demand response, self-healing networks

✅ 5G, cloud, and Big Data enable secure, scalable smart city services

 

A high-level delegation from Dubai Electricity and Water Authority (Dewa) recently visited China in bid to build closer ties with Chinese renewable and clean energy and smart services and smart grid companies, amid broader power grid modernization in Asia trends.

The team led by the managing director and CEO Saeed Mohammed Al Tayer visited the headquarters of Hanergy Holding Group, one of the largest international companies in alternative and renewable energy, in Beijing.

The visit complements the co-operation between Dewa and Hanergy after the signing MoU between the two sides last May, said a statement from Dewa.

The two parties focused on renewable and clean energy and its development, including efforts to integrate solar into the grid through advanced programs, and enhancing opportunities for joint investment.

Al Tayer also visited the Exhibition Hall and Exhibition Centre of the Hanergy Clean Energy Exhibition spread over a 7,000-sq-m area at the Beijing Olympic Park.

He discussed solar power technologies and applications, which included integrated photovoltaic panels and their distribution on the roofs of industrial and residential buildings, residential and mobile power systems, micro-grid installations in remote regions, solar-powered vehicles, and various elements of the exhibition.

Al Tayer and the accompanying delegation later visited the Beijing R&D Centre, which is one of Huaweis largest research institutes, known for Huawei smart grid initiatives across global markets, that employs over 12,000 people. The centre covers the latest pre-5G solutions, Cloud, Big Data, as well as vertical solutions for a smart and safe city.

"The visit is part of a joint venture with Huawei, which includes R&D projects to develop smart network infrastructures and various mechanisms and technologies, aligned with recent U.S. grid improvement funding initiatives, such as smart meters for electricity and water services, energy demand management, and self-recovery mechanisms from errors and disasters," he added.

 

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U.S. Nonprofit Invests $250M in Electric Trucks for California Ports

California Ports Electric Truck Leasing accelerates zero-emission logistics, cutting diesel pollution at Los Angeles and Long Beach. A $250 million nonprofit plan funds heavy-duty EVs and charging infrastructure to improve air quality and community health.

 

Key Points

A nonprofit's $250M plan to lease EV trucks at LA/Long Beach ports to cut diesel emissions and improve air quality.

✅ $250M lease program for heavy-duty EVs at LA/Long Beach ports

✅ Cuts diesel emissions; improves air quality in nearby communities

✅ Requires robust charging infrastructure and OEM partnerships

 

In a significant move towards sustainable transportation, a prominent U.S. nonprofit has announced plans to invest $250 million in leasing electric trucks for operations at California ports. This initiative aims to reduce air pollution and promote greener logistics, responding to the urgent need for environmentally friendly solutions in the transportation sector.

Addressing Environmental Concerns

California’s ports, particularly the Port of Los Angeles and the Port of Long Beach, are among the busiest in the United States. However, they also contribute significantly to air pollution due to the heavy reliance on diesel trucks for cargo transport. These ports are essential for the economy, facilitating trade and commerce, but the environmental toll is considerable. Diesel emissions are linked to respiratory issues and other health problems in nearby communities, which often bear the brunt of pollution.

The nonprofit's investment in electric trucks is a critical step towards mitigating these environmental challenges. By transitioning to electric vehicles (EVs), the project aims to significantly cut emissions from port operations, contributing to California's broader goals of reducing greenhouse gas emissions and improving air quality.

The Scale of the Initiative

This ambitious initiative involves leasing a fleet of electric trucks that will operate within the ports and surrounding areas. The $250 million investment is expected to facilitate the acquisition of hundreds of electric vehicles, which will replace conventional diesel trucks used for cargo transport. This fleet will help demonstrate the viability and effectiveness of electric trucks in heavy-duty applications, paving the way for broader adoption.

The plan includes partnerships with established electric truck manufacturers, such as the Volvo VNR Electric platform, and local logistics companies to ensure seamless integration of these vehicles into existing operations. By collaborating with industry leaders, the initiative seeks to establish a model that can be replicated in other major logistics hubs across the country.

Economic and Community Benefits

The introduction of electric trucks is expected to yield multiple benefits, not only in terms of environmental impact but also economically. As these trucks begin operations, and as other fleets adopt electric mail trucks, they will create jobs within the green technology sector, from manufacturing to maintenance and charging infrastructure development. The project is anticipated to stimulate local economies, providing new opportunities in communities that have historically been disadvantaged by pollution.

Moreover, the initiative is poised to enhance public health. By reducing diesel emissions, the nonprofit aims to improve air quality for residents living near the ports, and emerging research links EV adoption to fewer asthma-related ER visits in local communities. This could lead to decreased healthcare costs associated with pollution-related illnesses, benefiting both the community and the healthcare system.

Challenges Ahead

While the initiative is promising, challenges remain. The successful implementation of electric trucks at scale requires a robust charging infrastructure capable of supporting the significant power needs of a large fleet. Additionally, the transition from diesel to electric vehicles involves significant upfront costs, even with leasing arrangements. Ensuring that logistics companies can manage these costs effectively will be crucial for the project's success.

Furthermore, electric trucks currently face limitations in terms of range and payload capacity compared to their diesel counterparts. Continued advancements in battery technology and infrastructure development will be necessary to fully realize the potential of electric vehicles in heavy-duty applications.

The Bigger Picture

This investment in electric trucks aligns with broader national and global efforts to combat climate change. As governments and organizations commit to reducing carbon emissions, initiatives like this one represent crucial steps toward achieving sustainability goals, and ports worldwide are also piloting complementary technologies like hydrogen-powered cranes to decarbonize cargo handling.

California has set ambitious targets for reducing greenhouse gas emissions, including a mandate for all new trucks to be zero-emission by 2045. The nonprofit’s investment not only supports these goals, amid ongoing debates over funding priorities in the state, but also serves as a pilot program that could inform future policies and investments in clean transportation.

The $250 million investment in electric trucks for California ports marks a significant milestone in the push for sustainable transportation solutions. By addressing the urgent need for cleaner logistics, this initiative stands to benefit the environment, public health, and the economy. As the project unfolds, it will be closely watched as a potential model for similar efforts across the country and beyond, with developments such as the all-electric berth at London Gateway illustrating parallel advances, highlighting the critical intersection of innovation, sustainability, and community well-being in the modern logistics landscape.

 

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Electricity distributors warn excess solar power in network could cause blackouts, damage infrastructure

Australian Rooftop Solar Grid Constraints are driving debates over voltage rise, export limits, inverter curtailment, DER integration, and network reliability, amid concerns about localized blackouts, infrastructure protection, tariff reform, and battery storage adoption.

 

Key Points

Limits on solar exports to curb voltage rise, protect equipment, and keep the distribution grid reliable.

✅ Voltage rise triggers transformer protection and local outages.

✅ Export limits and smart inverter curtailment manage midday backfeed.

✅ Tariff reform and DER orchestration defer costly network upgrades.

 

With almost 1.8 million Australian homes and businesses relying on power from rooftop solar panels, there is a fight brewing over the impact of solar energy on the national electricity grid.

Electricity distributors are warning that as solar uptake continues to increase, there is a risk excess solar power could flow into the network, elevating power outage risks, causing blackouts and damaging infrastructure.

But is it the network businesses that are actually at risk, as customers turn away from centrally produced electricity?

This is what three different parties have to say:

Andrew Dillon of the network industry peak body, Energy Networks Australia (ENA), told 7.30 the way customers are charged for electricity has to change, or expensive grid upgrades to poles and wires will be needed to keep solar customers on the grid.

"The engineering reality is once we get too much solar in a certain space it does start to cause technical issues," he said.

"If there is too much energy coming back up the system in the middle of the day, it can cause frequency voltage disturbances in the system, which can lead to transformers tripping off to protect themselves from being damaged and that will cause localised blackouts.

"There are pockets of the grid already where we have significant penetration and we are starting to see technical issues."

However, he acknowledges that excess solar power has yet to cause any blackouts, or damage electricity infrastructure.

"I don't buy that at all," he said.

"It can be that in some suburbs or parts of suburbs a high penetration of solar on the point of use can raise voltage, these issues generally can be dealt with quickly.

"The critical issue is think where you are getting that perspective from. It is from an industry whose underlying market is threatened by customers doing it for themselves through peer-to-peer energy models. So, think with some critical insight to these claims."

He said when too many people rely on solar it threatens the very business model of the companies that own Australia's poles and wires.

"When the customers use the network less to buy centrally produced electricity, they ship less product," he said.

"When they ship less product, their underlying business is undermined, they need to charge more to the customers left and that leads to what has been called a death spiral.

"We are seeing rapid reductions in consumption at the point of use per household."

But Mr Dillon denies the distributors are acting out of self-interest.

"I absolutely reject that claim," he said.

"[What] we, as networks, have an interest in is running a safe network, running a reliable network, enabling the transition to a low carbon future and doing all that while keeping costs down as much as possible."

Solar installers say the networks are holding back business

Around Australia the poles and wires companies can decide which solar systems can connect to the grid.

Small systems can connect automatically, but in some areas, those wanting a larger system can find themselves caught up in red tape.

The vice-president of the Australian Solar Council, Glen Morris, said these limitations were holding back solar installation businesses and preventing the take-up of new battery storage technology.

"If you've already got a five kilowatt system, your house is full as far as the network is concerned," Mr Morris said.

"You go to add a battery, that's another five kilowatts and so they say no you're already full … so you can't add storage to your solar system."

The powers that be are stumbling in the dark to prevent a looming energy crisis, as the grid seeks to balance renewables' hidden challenges and competing demands.

Mr Morris also said the networks had the capacity to solve the problem of any excess solar flows into the grid, and infrastructure upgrades were not necessary.

"They already have the capability to turn off your solar invertor whenever they feel like it," he said.

"If they choose to connect that functionality, it's there in the inverter. The customer already has it."

ENA has acknowledged there is frustration with rooftop system size limits in the solar industry.

"What we are seeing is solar installers and others slightly frustrated at different requirements for different networks and sometimes they are unclear on the reasons for that," Mr Dillon said.

"Limitations are in place across the country to keep the lights on and make sure the network stays safe and we don't have sudden rushes of people connecting to the grid that causes outage issues."

But Mr Mountain is unconvinced, calling the limitations "somewhat spurious".

"The published, documented, critically reviewed analyses are few and far between, so it is very easy for engineers to make these arguments and those in policy circles only have so much tolerance for the detail," he said.

 

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