PG&E bills are deliberately hard to read. The line items don't match what you'd expect from a normal invoice — there's a "Power Charge Indifference Adjustment" and something called "Nuclear Decommissioning" that somehow applies to your residential account. The usage graph doesn't clearly show how much you used or what you paid per kilowatt-hour. And the rate plan information is buried in a second section that's easy to miss entirely.

Most people pay what they owe and move on. That's exactly what PG&E counts on.

But if you've ever opened your bill and thought "this doesn't look right" — you're probably right. Billing errors are common. Rate plan mismatches are common. And the tools to check yourself are available, free, and take about 20 minutes.

This guide walks you through a complete PG&E bill audit: what to look at, what to check, and what to do when you find something wrong.

Why PG&E Bills Are Hard to Read

Before you can audit your bill, it helps to understand why it's confusing in the first place.

Multiple charges, one number. Your total due looks like one line item. Underneath it are 10–15 separate charges: generation, transmission, distribution, public purpose programs, nuclear decommissioning, the PCIA (Power Charge Indifference Adjustment), franchise fees, and more. Each has a different rate and a different reason for existing.

Rate plans layered on top of rate plans. If you're on a Time-of-Use (TOU) plan, your actual cost per kilowatt-hour changes by time of day, day of week, and season. The bill shows you an aggregate number, but the rate that generated that number changes three times a day.

Baseline territories complicate everything. California divides the state into climate zones. Your "baseline" electricity allowance — the amount you get at the lowest Tier 1 rate — is different depending on where you live. A hot zip code in the Central Valley has a much higher baseline than a coastal Bay Area zip code. If your account is assigned to the wrong baseline territory, you're being charged more than you should be.

CCA customers have a split bill. If you're in Marin, Peninsula, or South Bay area served by a Community Choice Aggregation provider like Marin Clean Energy (MCE) or Peninsula Clean Energy (PCE), your bill has two generation sources — one from your CCA, one from PG&E. This creates opportunities for billing errors that don't exist for standard PG&E customers.

None of this is accidental. Complex billing is easier to accept without scrutiny.

Section 1: Reading Your Account Summary

Start at the top of your bill.

Account Information

Check that your name, service address, and account number are correct. This sounds basic, but billing errors often originate from mismatched account information — especially if you've moved or had a recent account transfer.

Billing Period

Confirm the billing period matches what you expect. Standard billing is monthly, but if your meter was read early or late in a given month, the period can be 28–35 days. If you see a billing period that's significantly shorter or longer than usual, flag it — your usage calculation may be off.

Total Amount Due

This is the number that catches everyone's attention. But for auditing purposes, it's the least useful number on the page. You need to look at what's inside it.

What to check:

Section 2: The Electric Charges Breakdown

This is where the real audit work happens. The electric charges section shows generation and delivery charges — the core of what you're paying for electricity.

Step 1: Find Your Rate Plan

Look for a label like E-TOU-C, E-TOU-D, EV-2A, E-ELEC, or E-1. This tells you which rate schedule PG&E is charging you under.

Why it matters: The rate plan you're on is the single biggest driver of your bill. E-TOU-C vs. E-TOU-D can mean $30–$80/month difference depending on when you use electricity. EV-2A is significantly cheaper for overnight charging. Being on the wrong plan is the most common and most costly billing error.

What to do: If you don't know what rate plan you're on, or if you didn't choose it, look it up. Have you ever requested a plan change? Did it go through? Check your account history at pge.com → My Account → Notifications to see if any plan change was ever processed.

Step 2: Check Your Usage in kWh

Find the "Electric Usage" or "Energy Consumption" figure, expressed in kilowatt-hours (kWh). This is the total amount of electricity you used during the billing period.

What to do:

  1. Export your usage from PG&E's Green Button data: pge.com → My Energy → Green Button → Download Usage Data
  2. Compare the billed usage against your Green Button export for the same period
  3. If they differ significantly, you have a potential meter read error

Look for the letter "E" next to any meter reading. "E" means it was an estimated read — PG&E didn't actually read your meter. Estimated reads are often wrong. If you see multiple consecutive estimated reads, the cumulative error can be substantial.

Step 3: Understand the Tier Structure

California's rate tiers work like this:

Tier Description Approximate Rate (2026)
Tier 1 Baseline allowance (varies by climate zone) $0.27–$0.32/kWh
Tier 2 Above baseline, still within Tier 2 $0.36–$0.42/kWh
Tier 3 High usage surcharge $0.40–$0.48/kWh
Tier 4 High usage surcharge $0.48–$0.55/kWh
Tier 5 High usage surcharge $0.52–$0.60/kWh

If you're consistently in Tier 4 or Tier 5, you're paying a premium. A rate plan change or a time-of-use strategy to shift usage off-peak could move you back to lower tiers. This alone can save $50–$150/month for high-usage households.

Section 3: Understanding TOU Periods and Peak Hours

If you're on a Time-of-Use plan (E-TOU-C, E-TOU-D, EV-2A, etc.), your bill isn't just about how much electricity you use — it's about when you use it.

PG&E TOU Periods (2026)

E-TOU-C / E-TOU-D:

Period Hours Rate Impact
Off-Peak Weekdays: before 3pm, after 9pm; All day weekends/holidays Lowest rate
Mid-Peak Weekdays: 3pm–9pm Moderate rate
Peak Summer weekdays: 4pm–9pm (June–Sept) Highest rate (2–3x off-peak)

EV-2A:

Period Hours Rate
Super Off-Peak Weekdays: midnight–6am ~$0.19/kWh (lowest residential rate)
Off-Peak All other times except 4–9pm Moderate
Peak Weekdays 4pm–9pm Highest

Why this matters: If you're on E-TOU-C or E-TOU-D and running high-draw appliances (clothes dryer, EV charger, pool pump) during peak hours, you're paying peak rates for electricity that costs much less off-peak. A household that shifts 200 kWh/month of off-peak usage can save $30–$50/month.

What to check on your bill: Some bills show a usage breakdown by TOU period. Look for a section labeled "Usage by Time Period" or "TOU Usage Summary." If you don't see it, check your online account — it usually has a more detailed breakdown.

Section 4: Common Billing Errors to Look For

Based on analyzing thousands of PG&E bills, these are the errors that show up most often:

Error 1: Consecutive Estimated Reads

What it looks like: Multiple months in a row with "E" next to meter readings, or a sudden jump in billed usage after a series of estimates.

What it costs: $50–$300 per month, depending on how far off the estimate was.

How to check: Export your Green Button data and compare against the billed kWh for each billing period.

Error 2: Wrong Rate Plan

What it looks like: You're on E-TOU-C but you requested E-TOU-D months ago. Or your new home was set up with a plan that doesn't match your usage pattern.

What it costs: $300–$1,200/year if you're consistently on the wrong plan.

How to check: Review your account notifications. Check with PG&E directly at 1-800-743-5000.

Error 3: Baseline Territory Mismatch

What it looks like: Your bill shows "Baseline Territory: P" but you live in a different climate zone than Territory P.

What it costs: $100–$500/year — you may be getting less Tier 1 baseline than you're entitled to.

How to check: PG&E's baseline territory map is available at pge.com/mybill → Rates & Tariffs → Residential Baseline Allowance. Compare your service address against the territory listed on your bill.

Error 4: PCIA Charge Anomalies

What it looks like: The Power Charge Indifference Adjustment (PCIA) varies month to month based on market conditions, but it shouldn't spike 50% without explanation.

What it costs: Varies, but PCIA can add $20–$50/month to your bill. If it jumps without market justification, something is wrong.

How to check: PG&E publishes PCIA rates monthly. Check against what appears on your bill.

Error 5: CCA Double-Charge

What it looks like: You're charged both for CCA generation (MCE/PCE) and PG&E generation in the same billing period.

What it costs: $80–$200/month while the error persists.

How to check: Look for MCE or PCE labeled charges. In a correctly billed account, you should see either CCA generation OR PG&E generation — not both for the same period.

Error 6: NEM True-Up Errors (Solar Customers)

What it looks like: You're a solar customer on NEM (Net Energy Metering) and your true-up bill is unexpectedly high, or the excess generation credits applied don't match your production data.

What it costs: $200–$800+ for NEM 2 customers; more for NEM 3 customers who may see significant bill changes.

How to check: Compare your monthly generation reports against your NEM statement credits. If the numbers don't align, request a detailed NEM statement from PG&E.

Section 5: How to Read the Usage Graph

PG&E includes a bar chart or line graph showing your daily or monthly usage. Most people glance at it and move on. Here's what to actually look for.

Check the scale: The graph's vertical axis is often cropped to exaggerate or minimize variation. Check the actual kWh numbers — don't just look at the relative heights of the bars.

Look for sudden spikes: A 40%+ jump from one month to the next with no behavioral change (new appliance, heat wave, vacation) is a red flag. Look at the billing period to see if there was a late meter read or estimated read that month.

Compare to the same month last year: Usage patterns are seasonal. Comparing June 2026 to June 2025 is more meaningful than comparing June 2026 to November 2025. If your usage is 30%+ higher for the same period with no change in household, investigate.

Section 6: Rate Plan Comparison — E-1 vs. TOU

PG&E offers two main categories of residential rate plans: standard tiered plans (E-1) and Time-of-Use plans (E-TOU-C, E-TOU-D, EV-2A, E-ELEC).

E-1: Standard Tiered

Best for: Customers who use most of their electricity during peak hours (4–9pm) and can't shift much of their usage to off-peak times.

E-TOU-C: Standard TOU

Best for: Customers who can shift cooking, laundry, EV charging, and other flexible loads to before 3pm or after 9pm. Can save $30–$80/month vs. E-1.

E-TOU-D: TOU for Medium Use

Best for: Customers with moderate usage who want TOU benefits with a simpler structure. Usually the best value for customers who can shift evening usage.

EV-2A: EV-Specific TOU

Best for: EV owners who can charge overnight. The super off-peak window makes this the cheapest residential rate PG&E offers — if you can schedule charging to start after midnight.

Which Plan Saves More?

The answer depends entirely on when your electricity use is concentrated. A household that uses most electricity during peak hours will likely save more on E-1. A household that uses most electricity off-peak will save more on E-TOU-C or E-TOU-D.

The only way to know for sure is to run your actual usage data through both rate plans using current tariff rates. My Big Bill does this automatically — upload your bill and we compare all applicable rate plans against your actual usage profile.

Section 7: How to Dispute and File for Credits

Once you've identified an error, here's the process:

Step 1: Document Everything

Before you call, prepare:

Write down the specific error in one sentence: "My March 2026 bill shows 1,847 kWh of usage, but my Green Button data for the same period shows 1,203 kWh — a discrepancy of 644 kWh."

Step 2: Contact PG&E

Ask specifically for:

  1. A billing review
  2. A meter accuracy test (free upon request)
  3. An adjustment or credit pending resolution

PG&E is required by CPUC regulations to acknowledge and investigate billing disputes within 15 business days.

Step 3: Request Formal Credit

If PG&E confirms the error, ask for the credit to be applied to your next bill or paid out as a refund check. Get the confirmation in writing — an email from PG&E customer service or a notation on your next bill statement.

PG&E can issue credits for errors up to 12 months back. For errors older than 12 months, you may need to escalate to the California Public Utilities Commission (CPUC).

Step 4: Escalate to CPUC if Needed

If PG&E doesn't resolve your dispute, file a complaint with the California Public Utilities Commission:

CPUC requires PG&E to formally respond. This escalation is most effective when you have clear documentation — meter data exports, bill comparisons, and a written record of your contacts with PG&E.

Section 8: How My Big Bill Does the Audit Automatically

You can do this audit manually — the information above tells you what to check. But it takes time, and some errors are difficult to spot without running the numbers against current tariff rates.

My Big Bill automates the full audit:

  1. Upload your bill PDF — any PG&E bill from the past 12 months
  2. We extract your usage, rate plan, and charges — including any CCA or NEM data
  3. We check for billing errors — meter anomalies, rate plan mismatches, baseline territory errors, double charges
  4. We compare every applicable rate plan against your actual usage profile — E-1, E-TOU-C, E-TOU-D, EV-2A, E-ELEC — and tell you exactly which one saves the most
  5. We give you a concrete action plan — what to dispute, what to switch, and how much you'd save

Most audits take under 3 minutes. No account connection required.

What you'll get: A clear breakdown of what's driving your bill, what's wrong, and exactly what to do about it — backed by current PG&E tariff data.

Frequently Asked Questions

How often should I audit my PG&E bill?

At minimum once per year, or any time your bill spikes without explanation. If you have solar, audit at true-up annually. If you recently moved, audit your first new bill before you pay it.

Can I get a refund for billing errors from years ago?

PG&E can issue credits going back 12 months from when the error is discovered and reported. For older errors, CPUC involvement is typically required and the process is more involved. Act promptly when you find an error.

Will switching rate plans save me money?

It depends on when you use electricity. The savings range from $0/month (if you're already on the right plan) to $1,200+/year (for EV owners who switch to EV-2A and charge overnight). The only way to know is to compare your actual usage against both plans using current rates — which My Big Bill does automatically.

What if I'm on a solar NEM plan?

NEM customers have additional considerations — true-up billing, excess generation credits, and the specific rules of NEM 2 vs. NEM 3 all affect your bill. Audit your NEM statements separately and check whether NEM 3's lower export rates have changed your expected savings.

Is it worth disputing a $50 billing error?

Yes — but only if you're confident it's a genuine error and you have documentation. Small errors often compound over months. A $50/month error that goes uncorrected for 6 months is $300. PG&E's billing review process is free and doesn't require a CPUC complaint for straightforward errors.

Start With Your Current Bill

A complete PG&E bill audit doesn't require special tools or account access. It requires three things: your current bill, your last 12 months of bills (or access to your online account), and 20 minutes.

Download your usage data. Check your rate plan. Compare this month to the same month last year. Look for the things this guide outlines.

If you find something, dispute it — the process is free and the credits are real.

If you'd rather skip the manual work, My Big Bill does the full audit in under 3 minutes. Upload your bill and we'll tell you exactly what's wrong, what rate plan you should be on, and how much you'd save.

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Related Reading

PG&E Solar Bill Explained: Your Complete NEM Guide

NEM 2 vs NEM 3, true-up bills, PCIA, and MCE solar billing explained with real examples.

PG&E Bill Errors: How to Spot Overcharges and Dispute Them

The five most common PG&E billing errors — and exactly how to dispute them.

How to Read Your PG&E Bill

Section-by-section guide to understanding every charge on your bill.

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