Who was surprised if photovoltaic systems would soon become mandatory? Not just in Baden-Wuerttemberg and on industrial buildings, but throughout the entire state? With the Greens in government, the likelihood increases. A system that produces electricity from solar power would have to be installed on new houses and those whose roof is being completely renovated. Coercion is a bad solution, conviction in competition is a good one. The thought in itself is worth considering, as Germany needs an answer to the dilemma of increasing electricity demand while simultaneously phasing out coal and nuclear power. No federal government will want to take the path to new nuclear power that France's President Macron is showing. But electricity from the roof is not free. Building would be even more expensivea system for the private home quickly costs 10,000 euros and the acquisition usually takes ten years at the earliest.

The client could still get involved in this. However, he makes new friends in the tax office who nag him with questions about sales, input tax, profit, feed-in, self-consumption and depreciation and make the correct explanation impossible without a tax advisor. Apparently, even tax officials are too confused about the legal situation, and recently they have been asking whether the PV system should not be assigned to the hobby. The tax office takes the step with a 15-page information sheet. The motive is as clear as day: the modules age, there is a risk of a dispute over deductible expenses for repairs. With a hobby, the system would be out of the tax return. The client would also have less trouble, but would be left with the costs. The energy transition cannot work like this.The Greens will have to flank their well-intentioned idea with a drastic simplification of tax law. Then people will probably even join in voluntarily.