“The increase in energy consumption attributable to the growth of digital asset mining has negative environmental effects and can have environmental justice implications as well as increase energy prices for those that share an electricity grid with digital asset miners,” according to the document. “Digital asset mining also creates uncertainty and risks to local utilities and communities, as mining activity is highly variable and highly mobile. An excise tax on electricity usage by digital asset miners could reduce mining activity along with its associated environmental impacts and other harms,” the document added.