Time-of-Day Load Shift Value
. Free, runs in your browser.
Night shift or batch timing looks like an operations headache until the ToD row prices it. Put your own peak and off-peak rates in and see what a movable load is worth.
Runs entirely in your browser. Nothing you type is uploaded or stored.
The formula we use
monthly = units * (ratePeak - rateOff) * days
annual = monthly * 12
- Assumes the same shiftable units and rate spread for every working day.
- Demand charges can still change if shifting creates a new peak.
- Operational cost can outweigh tariff saving.
Typical numbers
Reference figures to sanity-check your inputs. Your own bill and equipment data always win.
India's consumer-rights rules define a ToD tariff with 8 solar hours in a day, with actual slots set by the DISCOM order in force.
Source: Electricity (Rights of Consumers) Rules, 2023
The national ToD rule sets solar-hour tariff at least 20% below normal tariff, subject to the DISCOM order in force.
Source: Electricity (Rights of Consumers) Rules, 2023
The national ToD rule sets C&I peak-period tariff at not less than 1.20x normal and other consumer peak tariff at not less than 1.10x normal, subject to the DISCOM order in force.
Source: Electricity (Rights of Consumers) Rules, 2023
A 100 kWh/day load shifted for 250 days moves 25,000 kWh/year before any process-risk derating.
Source: BillTrends default model
BillTrends derates behavioural ToD shifting by 0.8 by default to account for missed shifts and process constraints.
Source: BillTrends default model
Common questions
What is a ToD tariff?
A ToD tariff prices electricity differently by time block. Peak periods cost more and off-peak or rebate periods cost less.
Should I move production just for ToD saving?
Only if quality, labour, delivery and safety are not hurt. This tool prices the electricity side only.
Where do I find peak and off-peak rates?
Look for the ToD, peak, normal, night, rebate or time block table on your bill or tariff schedule.