Hashpower is the miner's word for capacity: how many calculations per second a machine, a farm or a customer contract contributes. It turns an abstract technical process into something that can be bought, rented and measured, which is why the term appears in mining contracts and marketplace listings. Kept in English, it matches the vocabulary German miners already use. The .de ending addresses buyers and sellers of capacity in Germany.
bitcoinhashpower.de is part of the Bitcoin Mining DACH set, alongside terms for hashrate, pools, farms and nodes. It fits a provider selling hashpower contracts to private investors, a marketplace where miners rent out spare capacity, a hosting firm that bills customers per unit of computing power, or an information service comparing mining offers for German readers.