Mini-guide: reading your power bill to spot demand charge tricks

I just caught Leaseweb trying to slip a ratchet clause past me. Here's what to look for:

• Ratchet clauses: your demand charge is based on the highest 15-min peak in the last 12 months, not actual usage. Used 500kW once? You pay for 500kW all year.
• Coincident peak: you're charged based on grid-wide peak times you can't predict or control. Some colos pass this through raw.
• Load factor penalties: low average vs peak ratio triggers surcharges. Virtualization tax on your power bill, basically.
• "Simplified" flat rate: almost always 15-40% higher than metered with good load balancing.

Check your UOS (utility-owned substation) rider too. Some providers markup pass-through charges 8-12% "for administrative convenience."

I run mostly KVM with some LXC. Cgroup v2 makes power attribution per tenant possible now. If your colo won't give you 15-min interval data, that's a red flag.

Transparency. We had an outage last quarter where our demand spike was actually failover testing, and Leaseweb -- https://www.leaseweb.com -- tried to bill us the ratchet. Our error budget took the hit on the testing side, but the billing side had no blameless postmortem. I pushed for transparency on both. They gave us the interval data after we threatened to walk, but the process took three weeks. Not acceptable.

Wesh kate3

Le ratchet clause حلو explanation, I never understood before incha'allah my next bill is clean

I am with RackNerd now, they have the coincident peak but they do not explain it,,, I will check check the contract