RetrofitROI

Value of Shifting Usage to a Different Rate Plan

This bundles two changes together: actually shifting when you use electricity, and switching to a plan that rewards that shift. It shows the combined value, since the two changes only pay off together, not separately.

At your inputs, shifting usage and switching plans costs $4,350 less over 10 years.

Keep current usage pattern on current plan total cost over the horizon$22,000
Shift usage timing and switch to a time-of-use plan total cost over the horizon$17,650

Breakeven: The higher upfront cost is offset by year 0.3, after which shifting usage and switching plans stays cheaper.

  • This uses planning estimates you entered, not a contractor quote or guaranteed savings.
  • A lower calculated cost depends on actually shifting usage timing, which requires real behavior change.

What this also tells you: Even if your annual costs are 20% higher or lower than entered, the same option stays cheaper, with the advantage ranging from $3,450 to $5,250.

This is a planning estimate based on your entries. It does not size equipment, determine electrical or building-code compliance, verify incentive eligibility, or replace a contractor quote or professional energy audit.

Need your next decision? See the payback on the switching cost alone, isolated from the usage-shift value.

Want more context first? See Rate Plans, Load Timing, and Demand Charges.

Why this decision comes up

A homeowner considering a rate plan switch often needs to see the combined value of both the plan change and the behavior change together, since neither alone delivers the full picture.

How this is calculated

Both paths are compared as total cost over your ownership horizon: net cost plus annual cost carried forward.

A worked example

With the defaults (keep current pattern: $0 net cost, $2,200/year; shift and switch: $150 net cost, $1,750/year; 10-year horizon), shifting and switching totals $17,650 against $22,000 for keeping the current pattern, a $4,350 advantage for the combined change at these defaults.

Common mistakes

A common mistake is switching plans without actually changing usage habits, which can leave you paying more on a time-of-use plan than you would have on a flat rate.

Limitations

This assumes you can realistically sustain the usage shift over your full ownership horizon, which requires ongoing behavior change, not a one-time decision.

FAQ

Common questions

Why bundle usage shifting and plan switching together?

Switching to a time-of-use plan without actually shifting usage timing captures little of the value, and shifting usage without switching plans captures none of it on a flat rate. The combined change is what actually delivers savings.

What kind of usage shift is realistic for most households?

Running dishwashers, laundry, and EV charging overnight are common, achievable shifts. Cooking and daytime activity are harder to move without real lifestyle changes.

Is this the same as the flat vs. time-of-use comparison?

That tool compares the two plans directly at whatever usage pattern you enter. This one specifically frames the decision as "keep everything the same" versus "actively change both usage and plan."

What if I switch plans but only partially follow through on shifting usage?

Enter a realistic, honest estimate of how much you'll actually shift, not an ideal scenario, since a partial shift captures only part of the combined value shown here.

Does a smart home system help sustain this shift over time?

It can, since automated scheduling for appliances like water heaters, EV chargers, and thermostats removes the need to remember the behavior change manually, which can help sustain the shift longer than a one-time habit change alone.