Reading your utility bill for hidden waste
Most businesses look at their utility bill once a month, just long enough to check the total. That's understandable, but it also means the easiest, zero-cost savings — the ones that don't need a survey, a consultant, or new equipment — usually go unnoticed for years.
What to actually look at
- Baseload (your lowest overnight/weekend usage) — this is roughly what you use when nothing should be running. If it's high relative to your daytime peak, it usually means equipment left on unnecessarily: HVAC, lighting, chillers, or standby loads on machinery.
- Standing charges vs. unit rates — check both are competitive for your contract type, not just the headline unit rate. Standing charges are easy to overlook and vary more between suppliers than people expect.
- Maximum demand / capacity charges — if your bill includes a demand or capacity charge, a single short spike can set the charge for the whole billing period. Look for whether your contracted capacity actually matches what you use.
- Month-to-month consistency — a sudden, unexplained jump is worth investigating immediately; it's often a fault (a stuck damper, a failed timer, a malfunctioning compressor) rather than genuinely higher demand.
- Seasonal patterns that don't match your operations — if your spend rises in summer but your business doesn't get busier, that's frequently cooling running harder than it needs to, not more legitimate demand.
Why 12 months of bills matters
A single bill tells you almost nothing on its own — it's the pattern across a full year that reveals whether something's actually wrong or just seasonal. That's why a proper assessment always asks for 12 consecutive months, not a snapshot.
If you'd rather have this done properly against your actual equipment and bills, that's exactly what our energy efficiency survey does.