What this models: Monthly electricity / hosting energy cost only. Does not include setup fees, management fees, repair costs, shipping, or other fixed charges. Results are modeled estimates — not a precise invoice. Actual hosting contracts vary.
About billing models
Actual operating hours billing
Energy cost tracks actual hashing time. When miners are down, the modeled monthly cost falls proportionally. Relevant for providers like Simple Mining that describe precision / actual-consumption billing.
Fixed / prepaid power basis billing
Customer's modeled monthly power charge does not automatically fall when miners are down — the full month is billed at the contracted rate. Relevant for providers like Compass Mining that use a flat monthly fee structure. Lower uptime raises the effective cost per hashing hour.
Formulas used:
operating_hours = 720 × (uptime% ÷ 100)
Actual: monthly_cost = (watts ÷ 1000) × ($/kWh) × operating_hours
Fixed: monthly_cost = (watts ÷ 1000) × ($/kWh) × 720
effective_cost_per_op_hour = monthly_cost ÷ operating_hours
Scenario A
Billing model
Total watts across all miners in this scenario
% of 720 hrs/month miners are actively hashing
Billing model
Operating hours
estimated hashing time
Modeled monthly cost
Effective $/operating hr
cost per actual hashing hour
Scenario B
Billing model
Total watts across all miners in this scenario
% of 720 hrs/month miners are actively hashing
Billing model
Operating hours
estimated hashing time
Billed basis
full month
Modeled monthly cost
Effective $/operating hr
cost per actual hashing hour
Scenario Comparison
Monthly cost diff.
B costs $4.68 more
per month
Annual diff.
$56.16
per year
A eff. cost/hr
$0.2275/hr
per operating hr
B eff. cost/hr
$0.2347/hr
per operating hr
This comparison models electricity / energy cost only. Billing model matters: with fixed/prepaid billing, monthly cost stays constant even when miners are down, raising the effective cost per operating hour.
Actual hosting contracts vary. Review your provider's billing terms to determine exactly how downtime affects charges. These outputs are illustrative estimates — not a precise invoice.
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