Current annual cost
$2,022.00
Budgeting
Electricity Plan Switch Calculator
Compare electricity plans with fee-aware math, including time-of-use pricing, fixed charges, credits, and break-even usage.
Switch Economics
Candidate annual cost
$1,760.90
Annual savings
$261.10
$21.76 / month
Annual Cost Snapshot
Compare plan economics including fixed fees and credits.
Current plan
$2,022.00
Candidate plan
$1,760.90
Annual savings
$261.10
Break-even usage
N/A
Usage Sensitivity Curve
How yearly cost shifts across low-to-high usage.
80%100%120%
Current annual cost
$2,378.40
Candidate annual cost
$2,079.68
Annual savings
$298.72
Break-even monthly usageN/A
Assumption rates: 0.216 vs 0.193 $/kWh
Sensitivity (usage changes)
| Usage | Current | Candidate | Savings |
|---|---|---|---|
| 80% (6,600 kWh) | $1,665.60 | $1,442.12 | $223.48 |
| 90% (7,425 kWh) | $1,843.80 | $1,601.51 | $242.29 |
| 100% (8,250 kWh) | $2,022.00 | $1,760.90 | $261.10 |
| 110% (9,075 kWh) | $2,200.20 | $1,920.29 | $279.91 |
| 120% (9,900 kWh) | $2,378.40 | $2,079.68 | $298.72 |
Risk Flags
- Candidate cancellation fee can erase gains if you switch again early.
- Candidate appears cheaper across all usage levels under current assumptions.
How to use it
- Enter monthly kWh usage, contract term, and the current and candidate plan's energy charge, fixed fees, bill credits, and time-of-use rules using the plan facts sheet. Pulling from the last 12 utility bills is better than guessing a single average month.
- Read current annual cost, candidate annual cost, annual savings, and break-even usage. If the savings disappear after a 10%-15% usage change, the plan is fragile and the advertised rate is not telling the whole story.
- Bill-credit plans often win only inside narrow usage bands, so households with big seasonal swings can end up overpaying. A plan that looks cheapest at 1,000 kWh but expensive at 1,300 kWh is risky if your usage fluctuates.
- Match the plan to your real usage pattern instead of chasing the lowest headline rate, and avoid paying termination fees unless the annual savings clearly exceed them. Keep a copy of the plan sheet before switching.
- Re-run before renewal, after a move, or after a major load change such as EV charging or a new AC unit. Track average kWh, effective cents per kWh, and whether actual bills match the model.
AI Integrations
Contract, discovery endpoints, and developer notes for agent use.
Always available for agents
AI Integrations
Contract, discovery endpoints, and developer notes for agent use.
Tool contract JSON
https://aifinhub.io/contracts/electricity-plan-switch-calculator.jsonStable input and output contract for this exact tool.
Human review
People can use the browser page to sense-check outputs and charts, but agents should still execute against the contract and discovery endpoints.
- /agent-tools.json - machine-readable tool index.
- /llms.txt - human-readable model discovery guide.
- /.well-known/webmcp.json - WebMCP capabilities manifest.
- /.well-known/ai-plugin.json - plugin-style discovery manifest.
{
"tool": "electricity_plan_switch",
"monthly_kwh": [
760,
710,
680,
620
],
"contract_months": 12,
"current_plan": {
"pricing_model": "flat",
"flat_rate_per_kwh": 0.201,
"peak_rate_per_kwh": 0,
"offpeak_rate_per_kwh": 0,
"peak_share": 0.4,
"offpeak_share": 0.6,
"monthly_fixed_fee": 14,
"other_monthly_charges": 6,
"other_per_kwh_charges": 0.015,
"signup_credit": 0,
"cancellation_fee": 0
},
"candidate_plan": {
"pricing_model": "tou",
"flat_rate_per_kwh": 0,
"peak_rate_per_kwh": 0.245,
"offpeak_rate_per_kwh": 0.129,
"peak_share": 0.45,
"offpeak_share": 0.55,
"monthly_fixed_fee": 12,
"other_monthly_charges": 4,
"other_per_kwh_charges": 0.012,
"signup_credit": 120,
"cancellation_fee": 95
}
} Expand developer notes
Agent playbook
- Resolve Electricity Plan Switch Calculator from /agent-tools.json and open its contract before execution.
- Validate inputs against the contract schema instead of scraping labels from the page UI.
- Open the browser page only when a person wants to review charts, assumptions, or related tools.
Agent FAQ
Should ChatGPT, Claude, or another agent click through the UI?
No. Start with /agent-tools.json, then follow the tool's contract URL. The page UI is for human review, not parameter discovery.
When do tools show Quick and Advanced?
Every tool opens in Quick Start first. Advanced Controls keeps the same scenario, reveals more assumptions or diagnostics, and every tool keeps AI integrations inline below the instructions.
When should an agent still open the browser page?
Open it when a human wants to sense-check the output, review the chart, or keep exploring related tools after the calculation finishes.
Questions people usually ask
Why can a cheaper rate still lose overall?
Fixed fees, cancellation terms, and credit assumptions can offset lower per-kWh rates.
How is TOU pricing handled?
The calculator blends peak and off-peak rates using your peak/off-peak share assumptions, then adds per-kWh riders and fixed charges.
Does this include taxes and utility riders automatically?
No. Use the manual other monthly and other per-kWh fields to model local line items explicitly.
Is this professional advice?
No. Outputs are planning estimates only — not financial, tax, or investment advice.
Related Resources
Learn the decision before you act
Every link here is tied directly to Electricity Plan Switch Calculator. Use the explanation, formula, examples, and benchmarks to pressure-test the calculator output from first principles.
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