Connect with us

Opinion

5 year study by NAIT shows angle of panel is more significant than snowfall in Northern Alberta

Published

7 minute read

Study looks at impact of snow and angle of solar panels Old Man Winter takes a lot of flak in Alberta for everything from costly heating bills to frozen car batteries. But when it comes to the impact on solar panels, winter gets an unjustified bad rap.
A five-year study led by NAIT’s Alternative Energy Technology program found that snowfall on photovoltaic solar panels results in about a 3% energy loss. That’s significantly less than the 20% drain that industry had traditionally estimated despite a lack of data.
Tim Matthews, a technologist and one of the leads on the study, says the results will improve modelling used to estimate solar energy production that determines return on investment. Ultimately, that means a win for consumers.
NAIT launched the reference array snow study in 2012 with the City of Edmonton and Solar Energy Society of
Alberta. A system of 12 solar modules was installed atop the Shaw Theatre on Main Campus to not only measure the impact of snow on the system, but also how the tilt of each module affects energy production.
“The rule of thumb throughout industry was to design a system as if it had no snow and then wipe 20% of energy production off the slate – we’re going to lose 20% because we’re in Canada,” says Matthews. “Everybody was terrified of underestimating the impact of snow and latitude [on energy production].”
They found that the angle of the solar panels has a far greater impact on energy production than snowfall. Solar modules were fixed at six different angles – 14, 18, 27, 45, 53 and 90 degrees – which represent roof pitches commonly found on commercial buildings and homes. Six modules were cleared of snow every day, while the remaining six served as a control.
The least efficient was the module set at 90 degrees, like a wall-mount system, which saw a 24% loss in performance. The
module tilted to 53 degrees was most efficient, which confirmed an industry standard that solar systems are optimized when tilted to the equivalent of a city’s latitude.
The ideal angle for maximum production with snow accumulation was 45 degrees.
Matthews cautions that even five years worth of data is a small window when dealing with fluctuating variables such as
weather. But for a homeowner or business who already has historic data on their energy consumption, the tilt and snow impact clear up what had been a cloudy picture in predicting the cost-benefit of solar.
“Having this information raises the level of precision when it comes to engineering, design and production modelling,” says
Matthews. “A company that’s doing solar installation and design can go to a client and say, ‘This is precise. You can take this to the bank.’”
Crunching five years of data The work of crunching through all the data fell to students (and now grads of the class of ’18) Christian Brown and Jackson Belley as the basis of their final course project, or capstone.
That’s no mean feat considering energy performance data was collected from all 12 solar modules every five minutes every
day for five years – enough to fill 6,000 spreadsheet files.
“It was an insane amount of data,” says Brown. “That was not quite half, maybe the first third of the project. Months of work. It was a lot of learning.”
After five years of getting up at all hours to clear snow from the reference array – including Christmas – Matthews is glad
to be rid of that daily chore. For anyone who operates a solar system, he cautions that snow should only be cleared if it’s
safe to do so, such as on a flat commercial roof.
“Should you clean the ones on your [pitched] roof? Heck no,” he says. Nor does he recommend asking a contractor to
remove it. It’s just not worth it for the minimal gain in power efficiency from a snow-free solar system.
“Our recommendation is that it makes no sense. One hour of time from a professional or an apprentice is just not worth
it.”
Data was gradually exported by day, month, season and year, making it more digestible and user-friendly for industry,
government and institutions, but also the schools and not-for-profits, who are interested in the information.
The study’s interim findings are available online, while the students’ final report with datasets will be published on the
Alternative Energy Technology program page this fall. It’s expected to be a hot commodity. (Anyone can request the data now).
“The amount of requests that we get [for the data], it’s obvious people are interested and they want to know how does snow
affect solar modules,” says Belley.
Brown adds it’s a pretty cool feeling to work on a class assignment that has a major real-world impact. “The idea of solar won’t be as much of a gamble any more.”
Plans are also in the works to submit the findings for peer review and publication in a scientific journal.
After reading this report and remembering that both the Province of Alberta and the City of Red Deer are looking into a program that would pay for the program and be billed via your property taxes over 10 years.
The province and the city were very much forward thinking, I would offer and if snow loses only 3 % of power it does make more sense. Right?

Follow Author

Business

World Economic Forum Aims to Repair Relations with Schwab

Published on

Armstrong Economics

 By Martin Armstrong

The whistleblower has always been anonymous, and it remains very suspicious that the very organization he created would turn on him after receiving an anonymous letter that they admitted may not have been credible.

World Economic Forum founder Klaus Schwab stepped down from his chairman position at the organization on April 20, 2025, amid accusations of fraud. Our computer had forecast that the WEF would enter a declining trend with the 2024 ECM turning point. This staged coup happened about 37 years after the first Davos meeting (8.6 x 4.3). From our model’s perspective, this was right on time. Now, Schwab and the WEF are working to repair ties.

An anonymous whistleblower claimed that Klaus Schwab and his wife collaborated with USAID to steal tens of millions in funding. The whistleblower has always been anonymous, and it remains very suspicious that the very organization he created would turn on him after receiving an anonymous letter that they admitted may not have been credible. Something like this would never be acceptable in any court of law, especially if it’s anonymous. It would be the worst or the worst hearsay, where you cannot even point to who made the allegation.

Back in April, the WEF said its board unanimously supported the decision to initiate an independent investigation “following a whistleblower letter containing allegations against former Chairman Klaus Schwab. This decision was made after consultation with external legal counsel.”

Now, the WEF is attempting to repair its relationship with its founder ahead of the next Davos meeting. Bloomberg reported that the WEF would like to “normalize their relationship [with Klaus Schwab] in order to safeguard the forum and the legacy of the founder.”

Peter Brabeck-Letmathe has replaced Schwab for the time being, but is less of a commanding force. Schwab’s sudden departure has caused instability in the organization and its ongoing mission. Board members are concerned that support for the organization will begin to decline as this situation remains unresolved.

Davos is the Problem

The World Economic Forum’s annual revenue in 2024 was 440 million francs ($543 million), with the majority of proceeds coming from member companies and fees. Yet, the number of people registered to attend the 2025 Davos event is on par if not slightly exceeding the number of participants from the year prior.

WEF Schwab You Will Own Nothing

Schwab’s departure has damaged the Davos brand. There is a possibility that the organization is attempted to rebrand after Agenda 2030 failed. The WEF attempted to move away from its zero tolerance stance on ESG initiatives after they became widely unpopular among the big industry players and shifting governments. The brand has attempted to integrate the importance of digital transformation and AI to remain relevant as the tech gurus grow in power and popularity. Those who are familiar with Klaus Schwab know the phrase, “You will own nothing and be happy.” These words have been widely unpopular and caused a type of sinister chaos to surround the brand that was once respected as the high-brow institution of globalist elites.

European Central Bank President Christine Lagarde was slated to replace Schwab in 2027 when her term ends, and all reports claimed that he was prepared to remain in the chairman role for an additional two years to ensure Lagarde could take his place. What changed seemingly overnight that would cause the organization to discard Schwab before he was due to retire?

Schwab denies any misconduct and filed lawsuits against the whistleblowers, calling the accusations “calumnious” and “unfounded.” He believes “character assassination” was the premise of the claims.

WEC 2020 Arm v Schwab

I am no fan of Klaus Schwab, as everyone knows. I disagree with his theories from start to finish. Nevertheless, something doesn’t smell right here. This appears to be an internal coup, perhaps to distract attention from the question of alleged funds for the WEF from USAID, or to try to salvage the failed Agenda 2030. Perhaps they will claim that no misconduct had occurred since DOGE did not raise concerns or there is a possibility that those behind the internal coup are concerned that Schwab’s counter lawsuit could uncover new corruption. The investigation into Schwab has not concluded, but after only three months, the WEF would like to wrap it up. It appears that the WEF does not want to welcome Schwab back; rather, they would like to ensure an amicable resolution to maintain both the brand’s reputation as well as the founder’s.

Continue Reading

Business

A new federal bureaucracy will not deliver the affordable housing Canadians need

Published on

Governments are not real estate developers, and Canada should take note of the failure of New Zealand’s cancelled program, highlights a new MEI publication.

“The prospect of new homes is great, but execution is what matters,” says Renaud Brossard, vice president of Communications at the MEI and contributor to the report. “New Zealand’s government also thought more government intervention was the solution, but after seven years, its project had little to show for it.”

During the federal election, Prime Minister Mark Carney promised to establish a new Crown corporation, Build Canada Homes, to act as a developer of affordable housing. His plan includes $25 billion to finance prefabricated homes and an additional $10 billion in low-cost financing for developers building affordable homes.

This idea is not novel. In 2018, the New Zealand government launched the KiwiBuild program to address a lack of affordable housing. Starting with a budget of $1.7 billion, the project aimed to build 100,000 affordable homes by 2028.

In its first year, KiwiBuild successfully completed 49 units, a far cry from the 1,000-home target for that year. Experts estimated that at its initial rate, it would take the government 436 years to reach the 100,000-home target.

By the end of 2024, just 2,389 homes had been built. The program, which was abandoned in October 2024, has achieved barely 3 per cent of its goal, when including units still under construction.

One obstacle for KiwiBuild was how its target was set. The 100,000-home objective was developed with no rigorous process and no consideration for the availability of construction labour, leading to an overestimation of the program’s capabilities.

“What New Zealand’s government-backed home-building program shows is that building homes simply isn’t the government’s expertise,” said Mr. Brossard. “Once again, the source of the problem isn’t too little government intervention; it’s too much.”

According to the Canadian Mortgage and Housing Corporation, Canada needs an additional 4.8 million homes to restore affordability levels. This would entail building between 430,000 to 480,000 new units annually. Figures on Canada’s housing starts show that we are currently not on track to meet this goal.

The MEI points to high development charges and long permitting delays as key impediments to accelerating the pace of construction.

Between 2020 and 2022 alone, development charges rose by 33 per cent across Canada. In Toronto, these charges now account for more than 25 per cent of the total cost of a home.

Canada also ranks well behind most OECD countries on the time it takes to obtain a construction permit.

“KiwiBuild shows us the limitations of a government-led approach,” said Mr. Brossard. “Instead of creating a whole new bureaucracy, the government should focus on creating a regulatory environment that allows developers to build the housing Canadians need.”

The MEI viewpoint is available here.

* * *

The MEI is an independent public policy think tank with offices in Montreal, Ottawa, and Calgary. Through its publications, media appearances, and advisory services to policymakers, the MEI stimulates public policy debate and reforms based on sound economics and entrepreneurship.

Continue Reading

Trending

X