Which statement is incorrect regarding electric stackers?

The statement regarding electric stackers that is considered incorrect is that they produce zero CO2 emissions. While electric stackers are indeed more environmentally friendly compared to traditional internal combustion engine forklifts, they do not produce CO2 emissions at the point of operation. However, it is important to consider the entire lifecycle of the electricity that powers these vehicles.

Electric stackers derive their energy from electricity that may come from various sources, some of which could still generate CO2 emissions, such as fossil fuels. Therefore, while electric stackers contribute to lower local air pollution and noise levels during operation, claiming they produce zero CO2 emissions fails to account for the potential emissions generated during electricity generation.

The other statements hold true: electric stackers are often cost-effective due to lower operational costs, they require less maintenance than traditional forklifts because they have fewer moving mechanical parts, and they operate silently, contributing to a safer and more pleasant working environment.