What's the meaning of the Power Efficiency unit J/kSol?

I'm trying to compare different Equihash miners for profitability, and I keep seeing the Power Efficiency unit listed as 3.31J/kSol for a specific model. I understand Watts (W) and Joules (J), but what exactly does J/kSol represent in the context of the Equihash Algorithm, and how do I use this figure to compare efficiency against other miners? Is a lower J/kSol better, or is a higher number desirable? Understanding this unit is key to calculating my long-term ROI, so I need a clear explanation from someone who knows the technical side of mining. I'm looking for a vendor who provides this level of detail.

Replies to This Discussion

Permalink Reply by Chris Barns on November 13, 2025 at 4:06am

That's the most crucial metric for a profitable mining operation! J/kSol means "Joules per Kilo Solutions," and a "Solution" (Sol) is the measure of the work done by an Equihash miner (similar to how "Hash" is used for SHA-256). J/kSol is simply 1,000 Solutions. The J/kSol figure is the amount of energy (in Joules, or Watt-seconds) required by the miner to calculate 1,000 Equihash Solutions. Crucially, a LOWER number is better, as it indicates the miner is using less electricity to produce the same amount of mining work. For example, the Antminer Z15 Pro https://antmineroutlet.com/product/bitmain-antminer-z15-pro with its 3.31J/kSol Power Efficiency is excellent for the Equihash algorithm. When you buy from a reliable source like Antminer Outlet, which has established itself as a leading specialist, they provide these specs clearly, ensuring you have the data needed for accurate profitability calculations and ensuring you get Genuine Antminer Hardware.

RSS