Articles written by Marian Willuhn

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From diesel to DC For a long while, it looked as if hydrogen fuel cells would be the technology of choice for emissions-free road transport. However, truck manufacturers and freight forwarders recently turned their attention to battery-electric vehicles. This will require special charging technology and PV looks set to play an important role.
Marian Willuhn
Jan 10, 2023
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Applications & Installations
Germany’s new rebate program for residential heat pumps has come into effect A set of amendments to Germany’s law that offer a rebate program for sustainable heating has come into effect on January 1st. The new rules grant rebates of up to 40% to help homeowners to buy and install heat pumps.
Marian Willuhn
Jan 05, 2023
2
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Markets & Policy
German court rules in favor of Q Cells in patent dispute with Trina Solar A German court has issued a preliminary injunction ordering Trina Solar to stop selling its Honey and Vertex X solar modules in Germany, as they allegedly infringe upon the patented passivation technologies of Hanwha Q Cells.
Beatriz Santos, Marian Willuhn
Dec 28, 2022
6
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Research & Development
Weekend read: Elusive longevity The expected lifetime of PV inverters is significantly shorter than that of modules. In many projects, inverter replacement is included in financial calculations from the start, despite the high costs. Research is being conducted into the causes of faults to develop more durable inverters and components. But plant design can already improve the lifespan of inverters in use today, reports pv magazine Germany’s Marian Willuhn.
Marian Willuhn
Nov 19, 2022
7
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Elusive longevity The expected lifetime of PV inverters is significantly shorter than that of modules. In many projects, inverter replacement is included in financial calculations from the start, despite the high costs. Research is being conducted into the causes of faults to develop more durable inverters and components. But plant design can already improve the lifespan of inverters in use today, reports pv magazine Germany’s Marian Willuhn.
Marian Willuhn
Nov 09, 2022
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Markets & Policy
How the EU Commission envisages gas price caps and profit absorption on the electricity market European Union energy ministers will meet in a special session in Brussels on Friday to discuss deep cuts to the gas and electricity markets. A non-public paper obtained by pv magazine shows the Commission’s proposal, which includes a triad of reduced prices, consumption reduction, and solidarity-based distribution of energy within the EU.
Marian Willuhn
Sep 30, 2022
5
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Applications & Installations
Hydrogen to play limited role in building energy supply How much hydrogen is actually needed? Several German research institutes have examined 40 energy scenarios for hydrogen ramp-up and found that 15 million GWh of hydrogen will be needed worldwide by 2050.
Marian Willuhn
Sep 20, 2022
2
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Applications & Installations
Solar tech theft rising in Germany amid supply bottlenecks The Saxony State Criminal Police Office in Germany has blamed the energy crisis and growing solar demand for an increase in the theft of modules and inverters.
Marian Willuhn
Sep 06, 2022
1
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Applications & Installations
Germany raises feed-in tariffs for solar up to 750 kW The new provisions are part of the new version of the country’s renewable energy law, which was approved today by the German parliament.
Marian Willuhn
Jul 07, 2022
4