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Why did your energy bill change?

When a bill jumps, it is either what you used or what they charged. The Bill X-Ray splits the change into both, and the two add back up to the change exactly, so you can see which one moved.

Run my free Bill X-Ray →

Takes about 60 seconds. You need last month's bill and this one: the amount, and the kWh. Both are printed on the bill.

🔍 Usage vs rate, split exactly 📈 Track it month to month 📄 Build a complaint packet

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Energy Bill X-Ray

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Utility company

ZIP code

Billing month

Bill amount ($)

Electricity used (kWh)

+ Add optional details (outages, home size, gas)

Outages / flickers this month

Home size (sq ft)

Gas bill ($)

All-electric home?

Your Bill X-Ray

Keep it: email yourself this X-Ray (the numbers, recomputed and sent — nothing else leaves).

Help others under your utility: share this reading anonymously (region only — first 3 ZIP digits, no name, email, or address). Builds a free utility-pressure map.

Your History

Saved in this browser. Come back each month to see the trend.

Weather-Adjusted Usage

Did you actually use more — or was it just hotter/colder? Compares two months against real local weather (free, no account). Pre-filled from your history.

ZIP code

Baseline month

Baseline kWh

Compare month

Compare kWh

Utility Complaint Builder

Pick what happened — we generate a clean letter you can send to your utility or state commission. (You send it; we don't.)

My bill jumped sharply Power flickers / brownouts Outage not shown on the map No response from utility Meter reading seems wrong Solar interconnection delayed

Your name (for the letter)

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Solar Quote Sanity Check

Got a solar quote? See if the price is fair, when it pays off, and what to question — before you sign.

System size (kW)

Total quoted price ($)

Battery included?

Battery size (kWh, optional)

Paying cash or loan?

Loan APR (%) if financing

Your current monthly electric bill ($)

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Utility Rooms

Compare notes with others on your utility — unlocked once your area has enough readings.

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Run the numbers - free

From CalcStack, the sister toolkit: a free calculator that runs entirely in your browser. No signup, nothing uploaded.

Explore the full toolkit at calcstack.app.

Informational only — not legal, financial, or professional advice. Your readings are stored in your browser; shared readings are anonymized to region (3-digit ZIP).