A related meter (also known as a dual or linked MPAN) is when one electricity supply point has two MPANs — typically one for peak and one for off-peak consumption.
These are physically linked at the property and must always be treated as a single account.
You cannot switch one MPAN without the other; both must move to the same supplier at the same time.
If you attempt to switch only one, the current supplier will object and block the transfer.
Brokers often assume “it’s just another MPAN” and submit a standard sale.
It isn’t — related meters have specific handling rules and different topline formats.
Ignoring that causes errors, cancellations, or automatic supplier rejections.
❌ Submitting only one MPAN
❌ Using mismatched suppliers
❌ Missing “Related Meter” note on the prep form
❌ Re-submitting when it fails without fixing the issue
You don’t need ECOES access — just check the customer’s latest bill.
Look for:
Two MPANs listed at the same address
Wording such as “Related Off-Peak Meter” or “Night Register”
Two line items for electricity usage (day/night or peak/off-peak)
If you see this, stop and confirm both MPANs and usage figures.
If you’re still unsure, raise a ticket before submitting — guessing will only waste attempts.
💡 Quick example:
MPAN 1: 1200031234567 (Main)
MPAN 2: 1200031234578 (Related / Off-Peak)Both MPANs must be on the same prep form with a note:
“Related Meter – Dual MPAN”
| Supplier | Accepts Related Meters? | Conditions |
|---|---|---|
| ❌ EDF | No | EDF will not accept related meters under any circumstance. |
| ❌ E.ON Next / Scottish Power | No | Do not submit — these will always reject. |
| ⚠️ BGB (British Gas Business) | Rare | Only in limited legacy cases; both MPANs must exceed 5,000 kWh EAC each. |
| ✅ Valda Energy | Yes | Both MPANs must register together. Combined EAC ≥ 5,000 kWh (peak + off-peak). Credit must pass. |
Valda onboarding: 3–5 working days after contract and credit approval.
Dual MPANs must go live simultaneously; staggered registrations will fail.
✅ Valda = Recommended
⚠️ BGB = Legacy only (case-by-case)
❌ EDF / E.ON Next / SP = Do not submit
If you raise a ticket asking which suppliers accept related meters, it will be auto-replied with a link to this article and closed immediately.
Repeated tickets of this type may lead to restricted support access.
Always quote both MPANs on the same prep form.
Incomplete or mismatched submissions will be rejected automatically.
Remember: related meters are paired supplies, not duplicates.