NERC Estimated Billing Capping Order: Stop DisCo Overbilling & Reclaim Credits (2026 Guide)

Who This Guide Is For

This guide is for unmetered residential and small commercial customers in Nigeria who receive estimated (“crazy”) bills and want to:

1. Check whether the bill exceeds the NERC energy cap for their feeder
2. File a written DisCo dispute with evidence
3. Escalate to the NERC Forum Office if the DisCo ignores the complaint
4. Seek account credits for months billed above the cap

If you already have a working prepaid meter, use our general electricity billing dispute guide instead.

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1. What NERC’s Estimated Billing Cap Actually Is

For years, unmetered customers of DisCos such as Ikeja Electric (IKEDC), Eko Electricity (EKEDP), AEDC, IBEDC, EEDC, and others faced arbitrary estimated bills.

To limit that practice, the Nigerian Electricity Regulatory Commission (NERC) issued the Order on the Capping of Estimated Bills (Order No. NERC/197/2020) and later methodology/orders that support monthly energy caps. Those rules still matter in 2026: NERC continues to publish feeder/business-unit schedules and has sanctioned DisCos for billing above approved caps.

Golden rule
For eligible unmetered customers, the kWh on your estimated bill should not exceed the published NERC energy cap for your feeder / service band for that month.

What the rule is designed to do

• Align unmetered bills with metered neighbours on the same supply area/feeder schedule
• Stop arbitrary revenue padding through inflated estimates
• Force transparency via published monthly capping schedules

Scope note: Caps are especially relevant for common R2 and C1 classes. Always confirm your tariff class, feeder name, and the current month’s schedule before you dispute.

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2. Step-by-Step: Audit Your Monthly Bill

Do not pay an unexplained spike without checking the figures.

1. Find billed Energy Consumed (kWh) on the invoice
2. Identify your feeder / business unit / service band
3. Look up the official NERC monthly energy cap for that feeder
4. Calculate any overcharge and prepare a written dispute

Step 1: Locate consumption (kWh)

On your paper or digital bill, find Energy Consumed (kWh), Current Consumption, or the equivalent line item.

Step 2: Look up your feeder’s NERC cap

Your feeder name is often listed under account information (for example, Abule Egba 11kV or Gwarinpa 33kV). Check:

• Your DisCo website / customer portal notices
• NERC publications of monthly energy caps for your DisCo

Use the schedule that matches the billing month, not an old PDF from a different month.

Step 3: Compare bill vs. cap

Formula: Overbilled kWh = Billed kWh − NERC Cap kWh

The naira example depends on your approved tariff band and DisCo rate for that month. Recalculate with the rate printed on your bill; do not assume a national flat rate.

If billed kWh is above the published cap for your feeder/band, document it and dispute in writing.

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3. How to Submit a Formal Dispute (With Letter Template)

Verbal complaints to field staff are weak evidence. File a written complaint at your DisCo Business Unit / Undertaking office (and through any official app/email channel your DisCo recognises).

Demand proof of filing: Get a complaint ticket number or a stamped duplicate. Without that paper trail, escalation to NERC is much harder.

Sample overbilling dispute letter

The Business Unit Manager,
[Name of your DisCo, e.g., Ikeja Electric / AEDC]
[Business Unit Office Address], [City, State]

FORMAL DISPUTE AGAINST ESTIMATED BILLING ABOVE NERC ENERGY CAP
Account number: [Your Account Number]
Service address: [Your Full Address]
Feeder / business unit: [As shown on your bill]
Tariff class / band: [e.g., R2 / Band B]

Dear Sir/Madam,

I formally dispute the estimated electricity bill(s) for [Month(s), Year] on the account above.

My bill states consumption of [Billed kWh] kWh totaling ₦[Amount]. The applicable NERC monthly energy cap for my feeder/service band is [Cap kWh] kWh. The invoice therefore exceeds the published cap by [Excess kWh] kWh.

Under NERC’s estimated billing capping framework and applicable consumer-protection rules, I request:

1. An immediate account audit and downward adjustment to the lawful capped energy;
2. Credit/write-off of accumulated overbilling for every month billed above the approved cap;
3. Priority metering under the applicable MAF / MAP / DISREP process for my feeder.

While this dispute is pending, I will continue to pay my last undisputed bill amount. Kindly issue a formal complaint reference and written response.

Yours faithfully,
[Full Name]
[Phone] | [Email]

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4. Escalating to the NERC Forum Office

If your DisCo ignores the letter, refuses adjustment, or fails to resolve the complaint within the DisCo’s published resolution window, escalate to the NERC Forum Office that covers your DisCo area.

Practical escalation path

1. File written complaint with DisCo and keep the ticket/stamp
2. Follow up in writing and keep paying the last undisputed amount
3. If unresolved, file at the regional NERC Forum Office with your evidence pack
4. Seek an order for account audit and credit adjustment

Evidence pack to attach

• Disputed bill(s) and recent previous bills
• The NERC/DisCo capping schedule page for your feeder and month
• Stamped complaint letter or ticket number
• Proof of payments made on the undisputed amount
• Any SMS/email/app complaint references

Forum offices operate across DisCo coverage areas (including major centres such as Lagos, Abuja, Ibadan, and Port Harcourt). Confirm the correct office for your service address before filing.

When NERC finds capping violations, the usual customer remedy is an account credit / bill adjustment, consistent with past NERC enforcement orders directing DisCos to credit overbilled unmetered customers.

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5. Your Rights While a Billing Dispute Is Open

DisCos sometimes use disconnection threats to force payment of disputed estimates. Know the consumer-protection baseline:

While disputing an estimated bill: NERC’s published consumer rights allow an unmetered customer to pay the last undisputed bill while the contested bill goes through the dispute process. Keep proof that the dispute was filed and that undisputed payments continued.

If technicians attempt disconnection despite an open written dispute and continued payment of the undisputed amount:

1. Show the stamped complaint / ticket and payment proof
2. Record names, time, and feeder/account details
3. Report immediately to DisCo customer care and escalate to the NERC Forum Office
4. Ask for written confirmation that the disputed amount is under investigation

Do not rely on verbal assurances alone—paper trails win these cases.

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Key Takeaways

1. NERC energy caps still apply in 2026; check the current month’s schedule for your feeder and band.
2. Compare billed kWh vs. capped kWh before you pay a spike.
3. Dispute in writing, keep the ticket, and request account credits for overbilled months.
4. During the dispute, pay the last undisputed bill and document everything.
5. If the DisCo stalls, escalate to the NERC Forum Office with a complete evidence pack.
6. The long-term fix is a working meter—track MAF / DISREP / MAP options in parallel.

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Related Guides & Tools

• Electricity Billing Dispute Resolution in Nigeria
• How to Get a Free Prepaid Meter (MAF & DISREP)
• Electricity Act 2023 Explained
• How to File a NERC Complaint
• Free Electricity Bill Calculator