The "Wallbox Inspection 2025" by pv magazine Deutschland reveals significant performance differences among wallboxes in photovoltaic surplus charging. Not all tested models can efficiently use excess solar power to charge electric vehicles. For electrical installers, consulting on PV integration becomes a differentiating factor – customers with their own photovoltaic systems should specifically ask about this feature. The test results are likely to influence purchasing decisions and reveal a need for optimization in current product generations.