UK Energy Industry Divided Over Free Electricity Debate

ICT Electricity Demand is surging as data centers, 5G, IoT, and server farms expand, straining grids, boosting carbon emissions, and challenging climate targets unless efficiency, renewable energy, and smarter cooling dramatically improve.

Key Points

ICT electricity demand is power used by networks, devices, and data centers across the global communications sector.

✅ Projected to reach up to 20 percent of global electricity by 2025

✅ Driven by data centers, 5G traffic, IoT, and high-res streaming

✅ Mitigation: efficiency, renewable PPAs, advanced cooling, workload shifts

The communications industry could use 20% of all the world’s electricity by 2025, hampering attempts to meet climate change targets, even as countries like New Zealand's electrification plans seek broader decarbonization, and straining grids as demand by power-hungry server farms storing digital data from billions of smartphones, tablets and internet-connected devices grows exponentially.

The industry has long argued that it can considerably reduce carbon emissions by increasing efficiency and reducing waste, but academics are challenging industry assumptions. A new paper, due to be published by US researchers later this month, will forecast that information and communications technology could create up to 3.5% of global emissions by 2020 – surpassing aviation and shipping – and up to 14% 2040, around the same proportion as the US today.

Global computing power demand from internet-connected devices, high resolution video streaming, emails, surveillance cameras and a new generation of smart TVs is increasing 20% a year, consuming roughly 3-5% of the world’s electricity in 2015, says Swedish researcher Anders Andrae.

In an update o a 2016 peer-reviewed study, Andrae found that without dramatic increases in efficiency, the ICT industry could use 20% of all electricity and emit up to 5.5% of the world’s carbon emissions by 2025. This would be more than any country, except China, India and the USA, where China's data center electricity use is drawing scrutiny.

He expects industry power demand to increase from 200-300 terawatt hours (TWh) of electricity a year now, to 1,200 or even 3,000TWh by 2025. Data centres on their own could produce 1.9 gigatonnes (Gt) (or 3.2% of the global total) of carbon emissions, he says.

“The situation is alarming,” said Andrae, who works for the Chinese communications technology firm Huawei. “We have a tsunami of data approaching. Everything which can be is being digitalised. It is a perfect storm. 5G [the fifth generation of mobile technology] is coming, IP [internet protocol] traffic is much higher than estimated, and all cars and machines, robots and artificial intelligence are being digitalised, producing huge amounts of data which is stored in data centres.”

US researchers expect power consumption to triple in the next five years as one billion more people come online in developing countries, and the “internet of things” (IoT), driverless cars, robots, video surveillance and artificial intelligence grows exponentially in rich countries.

The industry has encouraged the idea that the digital transformation of economies and large-scale energy efficiencies will slash global emissions by 20% or more, but the scale and speed of the revolution has been a surprise.

Global internet traffic will increase nearly threefold in the next five years says the latest Cisco Visual Networking Index, a leading industry tracker of internet use.

“More than one billion new internet users are expected, growing from three billion in 2015 to 4.1bn by 2020. Over the next five years global IP networks will support up to 10bn new devices and connections, increasing from 16.3bn in 2015 to 26bn by 2020,” says Cisco.

A 2016 Berkeley laboratory report for the US government estimated the country’s data centres, which held about 350m terabytes of data in 2015, could together need over 100TWh of electricity a year by 2020. This is the equivalent of about 10 large nuclear power stations.

Data centre capacity is also rocketing in Europe, where the EU's plan to double electricity use by 2050 could compound demand, and Asia with London, Frankfurt, Paris and Amsterdam expected to add nearly 200MW of consumption in 2017, or the power equivalent of a medium size power station.

“We are seeing massive growth of data centres in all regions. Trends that started in the US are now standard in Europe. Asia is taking off massively,” says Mitual Patel, head of EMEA data centre research at global investment firm CBRE.

“The volume of data being handled by such centres is growing at unprecedented rates. They are seen as a key element in the next stage of growth for the ICT industry”, says Peter Corcoran, a researcher at the university of Ireland, Galway.

Using renewable energy sounds good but no one else benefits from what will be generated, and it skews national attempts to reduce emissions

Ireland, which with Denmark is becoming a data base for the world’s biggest tech companies, has 350MW connected to data centres but this is expected to triple to over 1,000MW, or the equivalent of a nuclear power station size plant, in the next five years.

Permission has been given for a further 550MW to be connected and 750MW more is in the pipeline, says Eirgrid, the country’s main grid operator.

“If all enquiries connect, the data centre load could account for 20% of Ireland’s peak demand,” says Eirgrid in its All-Island Generation Capacity Statement 2017-2026  report.

The data will be stored in vast new one million square feet or larger “hyper-scale” server farms, which companies are now building. The scale of these farms is huge; a single $1bn Apple data centre planned for Athenry in Co Galway, expects to eventually use 300MW of electricity, or over 8% of the national capacity and more than the daily entire usage of Dublin. It will require 144 large diesel generators as back up for when the wind does not blow.

 Facebook’s Lulea data centre in Sweden, located on the edge of the Arctic circle, uses outside air for cooling rather than air conditioning and runs on hydroelectic power generated on the nearby Lule River. Photograph: David Levene for the Guardian

Pressed by Greenpeace and other environment groups, large tech companies with a public face , including Google, Facebook, Apple, Intel and Amazon, have promised to use renewable energy to power data centres. In most cases they are buying it off grid but some are planning to build solar and wind farms close to their centres.

Greenpeace IT analyst Gary Cook says only about 20% of the electricity used in the world’s data centres is so far renewable, with 80% of the power still coming from fossil fuels.

“The good news is that some companies have certainly embraced their responsibility, and are moving quite aggressively to meet their rapid growth with renewable energy. Others are just growing aggressively,” he says.

Architect David Hughes, who has challenged Apple’s new centre in Ireland, says the government should not be taken in by the promises.

“Using renewable energy sounds good but no one else benefits from what will be generated, and it skews national attempts to reduce emissions. Data centres … have eaten into any progress we made to achieving Ireland’s 40% carbon emissions reduction target. They are just adding to demand and reducing our percentage. They are getting a free ride at the Irish citizens’ expense,” says Hughes.

Eirgrid estimates indicate that by 2025, one in every 3kWh generated in Ireland could be going to a data centre, he added. “We have sleepwalked our way into a 10% increase in electricity consumption.”

Fossil fuel plants may have to be kept open longer to power other parts of the country, and manage issues like SF6 use in electrical equipment, and the costs will fall on the consumer, he says. “We will have to upgrade our grid and build more power generation both wind and backup generation for when the wind isn’t there and this all goes onto people’s bills.”

Under a best case scenario, says Andrae, there will be massive continuous improvements of power saving, as the global energy transition gathers pace, renewable energy will become the norm and the explosive growth in demand for data will slow.

But equally, he says, demand could continue to rise dramatically if the industry keeps growing at 20% a year, driverless cars each with dozens of embedded sensors, and cypto-currencies like Bitcoin which need vast amounts of computer power become mainstream.

“There is a real risk that it all gets out of control. Policy makers need to keep a close eye on this,” says Andrae.

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CAA Quebec Electric Mobility spotlights EV adoption, charging infrastructure, consumer education, and sustainability, highlighting policy collaboration, model showcases, and greener transport solutions from the Quebec Electric Vehicle Show to accelerate climate goals and practical ownership.

Key Points

CAA Quebec's program advancing EV education, charging network advocacy, and collaboration for sustainable transport.

✅ Consumer education demystifying EV range and charging

✅ Hands-on showcases of new EV models and safety tech

✅ Advocacy for faster, wider public charging networks

The Quebec Electric Vehicle Show has emerged as a significant event for the automotive industry, drawing attention from enthusiasts, industry experts, and consumers alike, similar to events like Everything Electric in Vancouver that amplify public interest. This year, CAA Quebec took center stage, showcasing its commitment to promoting electric vehicles (EVs) and sustainable transportation solutions.

A Strong Commitment to Electric Mobility

CAA Quebec’s participation in the show underscores its dedication to facilitating the transition to electric mobility. With the rising concerns over climate change and the increasing popularity of electric vehicles, as Canada pursues ambitious EV targets nationwide, organizations like CAA are pivotal in educating the public about the benefits and practicality of EV ownership. At the show, CAA Quebec offered valuable insights into the latest trends in electric mobility, including advancements in technology, charging infrastructure, and the overall impact on the environment.

Educational Initiatives

One of the highlights of CAA Quebec's presentation was its focus on education. The organization hosted informative sessions aimed at demystifying electric vehicles for the average consumer. Many potential buyers are still apprehensive about making the switch from traditional gasoline-powered cars. CAA Quebec addressed common misconceptions about EVs, such as range anxiety and charging challenges, providing attendees with the knowledge they need to make informed decisions.

The sessions included expert panels discussing the future of electric vehicles, with insights from automotive industry leaders and environmental experts, and addressing debates such as experts questioning Quebec's EV push that shape policy discussions.

Showcasing Innovative EVs

CAA Quebec also showcased a variety of electric vehicles from different manufacturers, giving attendees the chance to see and experience the latest models firsthand, similar to a popular EV event in Regina that drew strong community interest. This hands-on approach allowed potential buyers to explore the features of EVs, from performance metrics to safety technologies. By allowing consumers to interact with the vehicles, CAA Quebec helped to bridge the gap between interest and action, encouraging more people to consider an electric vehicle as their next purchase.

Addressing Infrastructure Challenges

A significant barrier to the widespread adoption of electric vehicles remains the availability of charging infrastructure. CAA Quebec took the opportunity to address this critical issue during the show. The organization has been actively involved in advocating for improved charging networks across Quebec, emphasizing the need for more public charging stations and faster charging options, where examples like BC's Electric Highway illustrate how corridor charging can ease long-distance travel concerns.

Collaboration with Government and Industry

CAA Quebec’s efforts are bolstered by collaboration with both government and industry stakeholders. The organization is working closely with provincial authorities to develop policies that support the growth of electric vehicle infrastructure. Additionally, partnerships with automotive manufacturers are paving the way for more sustainable practices in vehicle production and distribution, and utilities exploring vehicle-to-grid pilots in Nova Scotia to enhance grid resilience.

A Bright Future for Electric Vehicles

The Quebec Electric Vehicle Show highlighted not only the current state of electric mobility but also its promising future, reflected in growing interest in EVs in southern Alberta and other provinces. With the support of organizations like CAA Quebec, consumers are becoming more aware of the benefits of electric vehicles. This awareness is crucial as Quebec aims to achieve its ambitious climate goals, including a significant reduction in greenhouse gas emissions.

CAA Quebec's presence at the Quebec Electric Vehicle Show exemplifies its leadership in promoting electric vehicles and sustainable transportation. By focusing on education, showcasing innovative models, and advocating for improved infrastructure, CAA Quebec is helping to pave the way for a greener future. As the automotive landscape continues to evolve, the insights and initiatives presented at the show will play a vital role in guiding consumers towards embracing electric mobility. The future is electric, and with organizations like CAA Quebec at the helm, that future looks promising.

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Alberta Data Centers fuel the digital economy with cloud computing, AI, and streaming, leveraging renewable energy and low-cost power; yet grid capacity, sustainability, efficient cooling, and regulatory frameworks remain critical considerations for reliable growth.

Key Points

Alberta facilities for cloud, AI, and digital services, balancing energy demand, renewable power, and grid reliability.

✅ Low electricity costs and renewables attract hyperscale builds

✅ Grid upgrades needed to meet rising, 24/7 workloads and cooling

✅ Workforce training aligns with IT, HVAC, and electrical roles

As Alberta continues to evolve its energy landscape, the recent surge in data center projects is making headlines. With companies investing heavily in this sector, Alberta is positioning itself as a key player in the digital economy. This trend, however, brings both opportunities and challenges that need careful consideration.

The Digital Economy Boom

Data centers are essential for supporting the growing demands of the digital economy, which includes everything from cloud computing to streaming services and artificial intelligence. As businesses increasingly rely on digital infrastructure, the need for reliable and efficient data centers has skyrocketed. Alberta has become an attractive destination for these facilities due to its relatively low electricity costs, abundant renewable energy resources, and favorable regulatory environment, according to a 2023 clean grids outlook that highlighted the province.

The influx of major tech companies establishing data centers in Alberta not only promises job creation but also contributes to the provincial economy. With investments pouring in, local businesses may see increased opportunities for partnerships, supplies, and services, ultimately benefiting the broader economic landscape, though proposed market changes could influence procurement and siting decisions.

Energy Demand and Infrastructure

While the growth of data centers can drive economic benefits, it also raises important questions about energy demand and infrastructure capacity, questions that have intensified since Kenney-era electricity changes in the sector. Data centers are energy-intensive, often requiring significant amounts of electricity to operate and cool their servers. As these facilities multiply, they will place additional pressure on Alberta's power grid.

The province has made strides in transitioning to renewable energy sources, with a defined path to clean electricity that aligns well with the goals of many data center operators seeking to reduce their carbon footprint. However, the challenge lies in ensuring that the electricity grid can meet the increasing demand without compromising reliability. The integration of more renewable energy into the grid requires careful planning and investment in infrastructure to handle variable supply and maintain a stable energy flow.

Environmental Concerns

The environmental implications of expanding data centers are also a point of concern. While many tech companies prioritize sustainability and aim for carbon neutrality, the reality is that increased energy consumption can contribute to greenhouse gas emissions if not managed properly, especially when regional export restrictions constrain low-carbon power flows. Alberta’s reliance on fossil fuels for a significant portion of its energy supply raises questions about how these data centers will impact the province's climate goals.

To address these concerns, there is a need for policies that encourage the use of renewable energy sources specifically for data center operations. Incentives for companies to invest in green technologies, such as energy-efficient cooling systems or on-site renewable energy generation, could help mitigate the environmental impact.

Workforce Development

Another critical aspect of this data center boom is the potential for job creation. Data centers require a range of skilled workers, from IT professionals to engineers and maintenance staff. However, there is a pressing need for workforce development initiatives to ensure that Albertans are equipped with the necessary skills to fill these roles.

Educational institutions and training programs must adapt to the changing demands of the job market. Collaborations between tech companies and local colleges can foster specialized training programs that prepare workers for careers in this evolving sector. By investing in workforce development, Alberta can maximize the benefits of data center growth while ensuring that its residents are prepared for the jobs of the future.

The Future of Alberta's Data Center Landscape

Looking ahead, Alberta’s data center landscape is poised for continued growth. The province's commitment to diversifying its economy, coupled with its abundant energy resources, makes it an appealing choice for tech companies. However, as the industry expands, careful consideration must be given to energy management, environmental impact, and workforce readiness, especially as Alberta changes how it produces and pays for electricity.

Regulatory frameworks will play a crucial role in shaping the future of data centers in Alberta, as the province pursues a market overhaul that could affect costs and reliability. Policymakers will need to balance the interests of businesses, environmental concerns, and the need for a reliable energy supply. By creating a supportive environment for innovation while addressing these challenges, Alberta can emerge as a leader in the digital economy.

The rise of data centers in Alberta marks an exciting chapter in the province's economic evolution. With the potential for job creation, technological advancement, and economic diversification, the opportunities are significant. However, it is essential to navigate the associated challenges thoughtfully. By prioritizing sustainability, infrastructure investment, and workforce development, Alberta can harness the full potential of this burgeoning sector, positioning itself as a key player in the global digital landscape.

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Hong Kong Electricity Tariff Increase reflects a projected 1-2% rise as HK Electric and CLP Power shift to cleaner fuel and natural gas, expand gas-fired units and LNG terminals, and adjust the fuel clause charge.

Key Points

An expected 1-2% 2018 rise from cleaner fuel, natural gas projects, asset growth, and shrinking fuel cost surpluses.

✅ Expected 1-2% rise amid cleaner fuel and gas shift

✅ Fuel clause charge and asset expansion pressure prices

✅ HK Electric and CLP Power urged to use surpluses prudently

Hong Kong customers have been asked to expect higher electricity bills next year, as seen with BC Hydro rate increases in Canada, with a member of a government panel on energy policy anticipating an increase in tariffs of one or two per cent.

The environment minister, Wong Kam-sing, also hinted they should be prepared to dig deeper into their pockets for electricity, as debates over California electric bills illustrate, in the wake of power companies needing to use more expensive but cleaner fuel to generate power in the future.

HK Electric supplies power to Hong Kong Island, Lamma Island and Ap Lei Chau. Photo: David Wong

The city’s two power companies, HK Electric and CLP Power, are to brief lawmakers on their respective annual tariff adjustments for 2018, amid Ontario electricity price pressures drawing international attention, at a Legislative Council economic development panel meeting on Tuesday.

HK Electric supplies electricity to Hong Kong Island and neighbouring Lamma Island and Ap Lei Chau, while CLP Power serves Kowloon and the New Territories, including Lantau Island.

Wong said on Monday: “We have to appreciate that when we use cleaner fuel, there is a need for electricity tariffs to keep pace. I believe it is the hope of mainstream society to see a low-carbon and healthier environment.”

Secretary for the Environment Wong Kam-sing believes most people desire a low-carbon environment. Photo: Sam Tsang

But he declined to comment on how much the tariffs might rise.

World Green Organisation chief executive William Yu Yuen-ping, also a member of the Energy Advisory Committee, urged the companies to better use their “overflowing” surpluses in their fuel cost recovery accounts.

Tariffs are comprised of two components: a basic amount reflecting a company’s operating costs and investments, and the fuel clause charge, which is based on what the company projects it will pay for fuel for the year.

William Yu of World Green Organisation says the companies should use their surpluses more carefully. Photo: May Tse

Critics have claimed the local power suppliers routinely overestimate their fuel costs and amass huge surpluses.

In recent years, the two managed to freeze or cut their tariffs thanks to savings from lower fuel costs. Last year, HK Electric offered special rebates to its customers, which saw its tariff drop by 17.2 per cent. CLP Power froze its own charge for 2017.

Yu said the two companies should use the surpluses “more carefully” to stabilise tariffs.

Rise after fall in Hong Kong electricity use linked to subsidies

“We estimate a big share of the surplus has been used up and so the honeymoon period is over.”

Based on his group’s research, Yu believed the tariffs would increase by one or two per cent.

Economist and fellow committee member Billy Mak Sui-choi said the expansion of the power companies’ fixed asset bases, such as building new gas-fired units and offshore liquefied natural gas terminals, a pattern reflected in Nova Scotia's 14% rate hike recently approved by regulators, would also cause tariffs to rise.

To fight climate change and improve air quality, the government has pledged to cut carbon intensity by between 50 and 60 per cent by 2020. Officials set a target of boosting the use of natural gas for electricity generation to half the total fuel mix from 2020.

Both power companies are privately owned and monitored by the government through a mutually agreed scheme of control agreements, akin to oversight seen under the UK energy price cap in other jurisdictions. These require the firms to seek government approval for their development plans, including their projected basic tariff levels.

At present, the permitted rate of return on their net fixed assets is 9.99 per cent. The deals are due to expire late next year.

Earlier this year, officials reached a deal with the two companies on the post-2018 scheme, settling on a 15-year term. The new agreements slash their permitted rate of return to 8 per cent.

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Substation Automation Services help electric utilities modernize through integration, EPC engineering, protective relaying, communications and security, with CAPEX and OPEX insights and a growing global market for third-party providers worldwide rapidly.

Key Points

Engineering, integration, and EPC support modernizing utility substations with protection, control, and secure communications

✅ Third-party engineering, EPC, and OEM services for utilities

✅ Integration of multi-vendor devices and platforms

✅ Focus on relays, communications, security, CAPEX-OPEX

The Newton-Evans Research Company has released additional findings from its newly published four volume research series entitled: The World Market for Substation Automation and Integration Programs in Electric Utilities: 2017-2020.

This report series has observed four major types of professional third-party service providers that assist electric utilities with substation modernization. These firms range from (1) smaller local or regional engineering consultancies with substation engineering resources to (2) major global participants in EPC work, to (3) the engineering services units of manufacturers of substation devices and platforms, to (4) substation integration specialist firms that source and integrate devices from multiple manufacturers for utility and industrial clients, and often provide substation automation training to support implementation.

2016 Global Share Estimates for Professional Services Providers of Electric Power Substation Integration and Automation Activities

The North American market report (Volume One) includes survey participation from 65 large and midsize US and Canadian electric utilities while the international market report (Volume Two) includes survey participation from 32 unique utilities in 20 countries around the world. In addition to the baseline survey questions, the report includes 2017 substation survey findings on four additional specific topics: communications issues; protective relaying trends; security topics and the CAPEX/OPEX outlook for substation modernization.

Volume Three is the detailed market synopsis and global outlook for substation automation and integration:

Section One of the report provides top-level views of substation modernization, automation & integration and the emerging digital grid landscape, and a narrative market synopsis.

Section Two provides mid-year 2017 estimates of population, electric power generation capacity, transmission substations, including the 2 GW UK substation commissioning as a benchmark, and primary MV distribution substations for more than 120 countries in eight world regions. Information on substation related expenditures and spending for protection and control for each major world region and several major countries is also provided.

Section Three provides information on NGO funding resources for substation modernization among developing nations.

Section Four of this report volume includes North American market share estimates for 2016 shipments of many substation automation-related devices and equipment, such as trends in the digital relay market for utilities.

The Supplier Profiles report (Volume Four) provides descriptive information on the substation modernization offerings of more than 90 product and services companies, covering leading players in the transformer market as well.

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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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