Industrial Electricity Bill Optimizer

Model tariff energy charges (flat or TOU), demand charges (including optional ratchets), and quantify savings from peak shaving and load shifting. Compare baseline vs optimized bills, visualize your daily demand curve, and export results for audits and proposals.

Inputs

Quick model
Profile source
Start with a monthly bill snapshot, or upload interval demand data. Optimization works best with a realistic 15-minute profile.

Billing period

Days in month30
Interval15 min
Demand charges typically use 15-minute maximum demand.

Baseline load (Quick model)

Used to generate a representative daily demand curve.
Monthly energy500,000 kWh
Your total billed kWh for the month.
Measured peak demand1,200 kW
Max demand in the billing period (kW). If unknown, estimate from interval data.
Load factor0.58
Avg kW / peak kW. Typical industrial: 0.45–0.75.

Tariff model

Customer charge$1,500
Minimum bill$0
Optional bill floor used by some utilities.
Riders / delivery adder$0.000/kWh
Optional: per-kWh adders, fuel riders, delivery charges.
Taxes / VAT0%
Applied to the post-minimum subtotal.
Energy pricing
Energy rate$0.11/kWh

Demand charges

Demand charge rate$18/kW
Applied to billed demand (kW). Billed demand may include a ratchet floor.
Demand window
Demand ratchet0%
If your tariff bills demand as max(current peak, ratchet% × last-12-month peak), enter a %.
Last 12-month peak0 kW

Optimization levers

Model a demand-limiting strategy (peak shaving) and optional load shifting from on-peak to off-peak.
Load shifting10%
Percent of on-peak energy you can shift to off-peak (process scheduling).
Peak limit mode
If you enable peak limiting, the tool dispatches a modeled battery (or equivalent control) to cap demand.
Demand limit1,000 kW
Used only for Fixed mode. Auto mode finds the best limit given your resources.
Battery power500 kW
Max discharge/charge power used to shave peaks.
Battery energy1,000 kWh
Available energy capacity for daily peak shaving.
Roundtrip efficiency90%
Min SOC reserve10%
Reserve kept for resiliency or operational constraints.

Project economics (optional)

CAPEX$0
Optional: use to compute payback and NPV from monthly savings.
Horizon10 yrs
Discount8%
Escalation2%

Model assumptions (v1.0)

  • Demand profile is modeled as a representative day and scaled to the billing month for energy charges.
  • Demand charge uses the maximum interval kW (15–60 minutes) in the billing period.
  • Battery dispatch is a simplified peak shaving + off-peak recharge heuristic to respect a demand limit.
  • Load shifting reduces on-peak energy and re-adds it to off-peak hours proportionally (no production constraints modeled).
  • This is an engineering-grade planning model; always validate savings using your utility interval data and tariff sheet.

Related tools & articles

Demand charges are usually won in operations (peak control) and contracts (tariff structure). Use these resources to go deeper and build a complete energy-cost strategy.

Tools

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HVAC Lifecycle Cost

Model long-term operating costs—useful when HVAC drives your peak demand.

Articles

Peak Shaving Strategies for Manufacturing

Practical tactics to reduce billed demand: scheduling, controls, thermal storage, and batteries.

Demand Response: Get Paid to Use Less Power

When DR beats batteries, how programs pay, and what operators need to qualify.

Factory Energy: Common Mistakes Behind High Bills

The highest-leverage mistakes (compressed air, HVAC, idle loads) that inflate kWh and kW.