Author
Thomas Koerner
Thomas Koerner is Canadian Solar’s Corporate Vice President of Module, System and Solutions (MSS)- Business Unit. With an extensive technical and business background, Mr. Koerner has held various leading management & board positions in the solar industry for over 15 years. Mr. Koerner joined Canadian Solar in December 2012 as the General Manager for its US operations. In 2014 he became responsible for all Canadian Solar activities in North, Central and South America. Since 2016, he has been responsible for all global sales activities for Canadian Solar’s Modules and Components division.
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Articles written by Thomas Koerner
When battery imbalance turns 11% of capacity into stranded energy
A 350 MWh battery storage system in Europe is delivering significantly less energy than expected due to cell imbalance, with the battery management system failing to detect the issue, tradable energy volumes chronically overestimated, and weekly balancing cost exposure reaching up to €110,000 ($127,745). This is one of the real-world failure scenarios to be examined at the Battery Business & Development Forum on April 1.
Mar 27, 2026
Three emerging structures for solar-plus-storage PPAs
The PPA price for pure photovoltaic projects has fallen by 20% over the past year, making such contracts less competitive. However, clear structures for bankable hybrid PPAs are now beginning to take shape, says Pieter van der Meulen, Senior Account Manager at LevelTen Energy, in an interview with pv magazine.
A game of risk
The rising popularity of “baseload” power purchase agreements (PPAs) has posed questions to solar electricity suppliers in the German market. How can projects that do not generate at night, and with wide seasonal output variation, effectively supply constant power to consumers? More importantly, who shoulders the price risk?
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The long read: How can yield be increased, and by how much?
In preparation for the Asset Management Session of pv magazine’s Virtual Roundtables Europe in June, we took a close look at how much yield is lost due to quality issues, and discussed with a group of experts when it makes financial sense to take appropriate measures to address these issues.
The long read: How large of a problem is thermal derating?
In its Inverter Scorecard, PV Evolution Labs examines thermal derating, a long-known problem among experts. With the data the lab collects, it provides insights as to how different devices behave when exposed to high temperatures.
Nov 29, 2019
The long read: Battery recycling is possible
A gloomy atmosphere currently hangs over the lithium-ion supply chain. Stationary battery storage equipment and electromobility offer tremendous opportunities. Yet many experts have concerns about the raw material supply and recycling situation. Christian Hagelüken, the Director of EU government affairs at Umicore, a major recycler and supplier of cobalt, explains his view of the situation.
Jul 20, 2019
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The long read: The time is right
Kaco is launching a mass-produced string inverter with silicon carbide switches onto the market following 10 years of discussion about the technology within the industry. In the 100 kilowatt plus segment, the technology produces small, lightweight devices with few components.