Your electricity rate falls. Good news! Then the bill arrives—and it’s higher.
That isn’t necessarily a contradiction. The price of electricity you use is only one part of the bill. A separate service charge can change the result.
Piggy’s approach: give each cost its own little pen before adding everything together.
Try your numbers in the electricity calculator. It compares the variable electricity cost only; keep fixed charges separate.
Two costs, two different jobs
Usage charges depend on how much electricity you consume, measured in kilowatt-hours, or kWh. Fixed service charges are separate from that consumption.
Southern California Edison explains that its Base Services Charge can offset—or outweigh—the effect of lower per-kWh charges, depending on usage. Reducing consumption does not reduce that particular service charge. This is an example from SCE’s service territory, not a rule for every utility. SCE’s bill-change explanation.
So before deciding whether your household costs less to run, compare both parts.
A lower rate, but a higher total
Here is a deliberately hypothetical USD example—not an actual utility tariff. Assume the household uses the same 400 kWh each month.
| Monthly component | Previous scenario | New scenario |
|---|---|---|
| Variable rate | $0.30/kWh | $0.25/kWh |
| Usage charge | $120 | $100 |
| Fixed service charge | $10 | $35 |
| Simplified total | $130 | $135 |
The lower rate reduces the modeled usage charge by $20. But the fixed charge increases by $25. The combined difference is $5 more per month, despite the cheaper electricity rate.
If every assumption stayed unchanged for twelve months, that would be $60 more annually. That is a projection—not recorded spending, a promised bill amount, or confirmed savings. This simplified example excludes taxes, credits, other fees, tiered pricing and time-of-use differences.
What Piggy’s calculator can—and cannot—tell you
Open the electricity scenario. Enter previous price 0.30, scenario price 0.25, 400 kWh, 1 purchase per Month. Confirm comparable treatment of charges.
The calculator shows $20 less per average month and $240 less annually for the variable charge alone. It does not include the hypothetical fixed-charge increase. Add that separately when reviewing your complete budget.
A cheaper component is useful information. It just isn’t the whole bill.
Make your comparison fair
Use your own bill and check the billing dates, kWh consumption and rate plan. Compare equivalent charges, with consistent treatment of taxes, discounts and fees.
For time-of-use or tiered plans, a single headline rate may not represent all your consumption. Don’t treat one simplified comparison as a reconstruction of a complex bill.
Also watch for different billing-period lengths. A longer period can contain more consumption even when your daily routine hasn’t changed.
Give the difference a job—after checking it
If your complete bill really decreases, you can choose to direct the difference toward a household goal. If it increases, you have a clearer number to discuss with your family or adjust in your plan.
Neither result is a judgment about your habits. It is simply better visibility.
For SCE customers, the utility points to assistance and income-qualified programs. Check eligibility directly rather than assuming a discount applies. SCE assistance information.
Piggy’s reminder: a lower rate deserves a smile; a lower total deserves a second look.
Try your electricity numbers, then account separately for fixed charges and other bill components.
Sources and coverage
Reviewed October 10, 2026. SCE’s FAQ displays no publication date. Every amount in the worked example is hypothetical, not an SCE tariff or local price quotation. The calculator models variable charges only. No private data or guaranteed savings are used.
A little clarity, not a guarantee
Projections are not recorded spending or confirmed savings. No national average or future price is inferred. The web calculator does not upload receipts, send family requests, or update the iPhone app.
