-
VaughanLaura May
shut down
Josef Kastenmüller from Sauerlacher is upset that the performance of his photovoltaic system is not being fully exploited. After 70 percent it is over. This is currently required by law.
Saurlach – Joseph Kastenmüller sits in his garden, feet in the pool, looking at the PV system on the roof. “We have an energy shortage, why is 30 percent of the electricity disappearing here?” asks the 72-year-old, which means limiting his photovoltaic system to 70 percent of its output.
90 modules on the roof of the house and garage
Since 2016 the guy from Soverlak has been building his PV system. Today he has about 90 modules on the roof of his house and garage – and he wants to use them as much as possible. “Why generate as much electricity as possible? Anyway, the sun is shining. “
“The question is perfectly reasonable,” says Bayernwerk Networks spokesman Christian Martens. But: “If we increase all systems to 100 percent, there will be a network overload.” It doesn’t make sense economically and technically. Joseph Kastenmüller asks himself about this argument: “What about the electricity I don’t use and don’t feed into the grid?”
Video: Photovoltaics – Operation and Properties of a System
The PV systems automatically switched off – and the owners were angry
Bayernwerk spokesman Martens replied that it wasn’t even built in the first place. “It’s not about generating electricity that doesn’t get paid — the electricity isn’t generated in the first place.” PV systems automatically switch off when they reach 70 percent of their capacity. This can only happen under optimal conditions. “The final peak is rarely reached.”
However, Kastenmüller is upset that the potential of his PV system is not being fully exploited. He wonders why his clean solar power isn’t needed, especially with the energy crisis and soaring prices. Energy companies like Bayernwerke or Eon only aim for maximum profit, not optimal energy supply for society.
The Renewable Energy Sources Act (EEG) is in transition
The Renewable Energy Sources Act (EEG) has its origins in the Electricity Feed-in Act of 1991. A central political control factor for the development of renewable energies – among other things, to regulate the feed-in of renewable energies and ensure grid stability. The law also regulates and guarantees a fixed feed-in tariff for manufacturers. The current version of the law, EEG 2021, was passed by the Black-Red coalition in late 2020. Among other things, it sees A Output limitation of PV systems to 70 percent So networks are not overloaded. The limitation does not mean that 30 percent of the power is lost, but that the maximum output of the systems is limited to 30 percent. According to the estimate, various sources and orientation of plants pass through the limitation Up to five percent of annual electricity is lost. According to paragraph 9 of the EEG 2021, anyone with their own PV system can choose one of two options: either throttle to 70 percent of the maximum effective output or agree to remote control by the grid operator if the grid is going to be overloaded.
With EEG 2023, the Traffic Light Alliance now has one as part of the Easter package Revision of the Act Launched – Only the federal president needs to sign the draft. From 2030, renewable energy 80 percent of the total electricity consumption. In addition to several adjustments, the feed-in tariff will increase from 6.24 cents to 8.2 cents. Also, the 70 percent rule will not apply from January 1, 2023 for new PV systems with an output of up to 25 kW.
Electricity from a PV system: Storage is expensive and not economical
Bayernwerk spokesman Martens disagrees. Even if you allow maximum power, only about five percent more power will come out. In his view, tip shaving is therefore a sensible measure. Production and power consumption should be balanced. Storage of electricity generated during peak moments is expensive and uneconomical.
Via: Everything from the region is available in our usual District Munich Newsletter.
Also: operators of PV systems can opt for automatic throttling (70 percent rule) and a remote control system that remotely switches off private systems in the event of grid overload. However, private individuals must bear the cost themselves.
Despite the explanations, Joseph Kastenmüller does not understand that his system shuts down on a sunny day and at the same time everyone is talking about an energy crisis. He has approached Prime Minister Markus Söder (CSU) with his request in the BR format “Now Red Eye”.
Power throttling is toggled
This rule is no longer from Bavaria, but from the traffic light coalition from Berlin. In the Renewable Energy Sources Act (EEG) of 2023, the federal government will eliminate the 70 percent cap on new systems starting January 1, 2023. For existing plants, this rule should be waived in the next EEG amendment. Thus the wish of Joseph Kastenmüller will come true. Yet he is not satisfied. “We need power now — not next year,” Sauerlacher says, adding that the upgrade won’t affect the existing system for the time being. He doesn’t want to believe anything anymore, he doesn’t trust politicians.
Bayernwerk’s problem
The new EEG 2023 has a direct impact on Bayern Werk. On the one hand, the energy company must now bring its network to 100 percent performance in the long term. However, in the short term, this will also reduce the number of connected systems, explains spokesperson Martens. “Our network must be able to deliver the maximum possible performance.
You can find more current news from the Munich district here Merkur.de/Landkreis München.
Problem solver. Incurable bacon specialist. Falls down a lot. Coffee maven. Communicator.
