Gas Validate Past Charges
Recalculate every gas transportation charge and CCL from published GDN rates to find what a bill should have been.
For consultants validating supplier gas invoices and building evidence for billing disputes.
Try Gas Validate Past ChargesOvercharge identified
invoiced vs validated · 1 Apr 2024 to 30 Sep 2024
overcharged across 3 line items, recoverable
Charge-by-charge comparison
| Charge | Invoiced | Should be | Variance |
|---|---|---|---|
| ZCA | £49.56 | £49.56 | £0.00 |
| ZCO | £82.16 | £69.70 | -£12.46 |
| CCA | £26.69 | £26.69 | £0.00 |
| CFI | £3.66 | £2.29 | -£1.37 |
| ECN | £20.81 | £20.81 | £0.00 |
| SOLR | £8.45 | £8.45 | £0.00 |
| CCL | £350.30 | £38.53 | -£311.77 |
| Total | £541.63 | £216.03 | -£325.60 |
The journey
Four steps, one verdict
From an MPRN and billing period to a charge-by-charge overcharge analysis.
Enter
Enter supply details
Enter the MPRN, postcode, billing period dates, period consumption and CCL status. For CCA holders, select the correct relief rate: 88% for 2023-24, 89% from 2024-25 onwards. For exempt supplies, select full exemption and CCL drops to zero.
Identify
Identify the site and LDZ
We locate the MPRN in the LDZ from its postcode, derive the AQ and SOQ from your period consumption using the Xoserve Peak Load Factor for the LDZ and EUC band, and classify the site as CSEP, IGT or direct connect. This is the same classification the GDN uses to determine which charges apply.
Recalculate
Recalculate each gas charge
Every gas transportation charge is recalculated from published GDN rates: ZCA, ZCO, CCA, CFI (Band 2 only), ECN and SOLR, each shown as quantity times rate equals result. CCL is calculated at the applicable HMRC gas rate with any CCA-holder relief or full exemption applied.
Charge recalculation · 1 Apr 2024 to 30 Sep 2024 · Cadent EA
| Charge | Qty | Rate | Result |
|---|---|---|---|
| ZCA LDZ Capacity | 93,330 kWh | 0.0531 p/kWh | £49.56 |
| ZCO LDZ Commodity | 45,200 kWh | 0.1542 p/kWh | £69.70 |
| CCA Customer Capacity | 93,330 kWh | 0.0286 p/kWh | £26.69 |
| CFI Customer Fixed | 183 days | 1.2500 p/day | £2.29 |
| ECN Exit Capacity | 93,330 kWh | 0.0223 p/kWh | £20.81 |
| SOLR Levy | 45,200 kWh | 0.0187 p/kWh | £8.45 |
Validate
Find the variance
The invoiced total is compared against the validated charges line by line. Any overcharge is flagged with its exact value and the charge that produced it, giving you the evidence needed to raise a billing dispute or recover the difference.
Overcharge identified
invoiced vs validated · 1 Apr 2024 to 30 Sep 2024
overcharged across 3 line items, recoverable
Charge-by-charge comparison
| Charge | Invoiced | Should be | Variance |
|---|---|---|---|
| ZCA | £49.56 | £49.56 | £0.00 |
| ZCO | £82.16 | £69.70 | -£12.46 |
| CCA | £26.69 | £26.69 | £0.00 |
| CFI | £3.66 | £2.29 | -£1.37 |
| ECN | £20.81 | £20.81 | £0.00 |
| SOLR | £8.45 | £8.45 | £0.00 |
| CCL | £350.30 | £38.53 | -£311.77 |
| Total | £541.63 | £216.03 | -£325.60 |
FAQ
Answers, before you ask
GDN-published transportation rates from the 2022-23 charging year onwards, plus HMRC CCL rates back to 2023-24. We default to the most recent published rates for any year not yet finalised.
Still curious? Email [email protected]
Find what a gas bill should have been.
Validate every charge against published GDN rates and surface any overcharge in minutes.