Market Charges
In accordance with the Market Arrangements Code (MAC), MOSL may levy the following charges on trading parties:
Invoiced in advance
- Wholesaler Market Operator (MO) Charges
- Retailer Market Operator (MO) Charges
MO Charges are based on MOSL’s approved annual MO Budget, profiled monthly based on a one twelfth (1/12) split. MOSL will revisit the future profile as part of its quarterly analysis and forecast and may alter the profile if required.
Invoiced in arrears
- Additional and Market Services
Charges payable by relevant wholesaler and retailer for the provision of services identified in the Schedule of Additional Services and Market Services. MOSL Invoicing explained provides detail on how the MO Charges are calculated.
- Market Performance Standard (MPS) Charges
MPS Charges are payable in respect of underperformance by a trading party against Market Performance Standards.
- Operational Performance Standard (OPS) Charges
OPS Charges payable by undertaker wholesalers in respect of underperformance against the Operational Performance Standards.
Please note: We are currently experiencing an issue with the ordering of rows within the tables below, therefore the information you require may appear at the bottom of the table instead of at the top.
| Deliverable | Description | SLA | Code Reference |
|---|---|---|---|
| Market Operator (MO) charges invoices | Invoice including the relevant trading party’s share of monthly MO charges | MOSL will issue invoices by the ninth business day of the month Each trading party’s invoice will be emailed to accounts payable department and/or a designated contact | Consistent with Market Arrangements Code (MAC) – Section 10.4 |
| Other Market Charges invoices | MPS charges, OPS charges, Additional Services charges, Interest charges for late payment of invoices and/or Default MO Charges payable by a trading party | MOSL will issue invoices for Performance Standard Charges by the 15th business day of the month, and by the ninth business day for all other charges | Consistent with MAC – Section 10.4 |
| MO charges Annual Reconciliation | Audited annual accounts will be used to make a final determination, following which adjustments to charges for each wholesaler and retailer may be made for any outturns and any surplus/deficit in charges. These adjustments will include any adjustments relating to MOSL’s relocation to Southampton. | No later than 25 business days after publication of MOSL’s Audited Annual Accounts | MAC – Section 10.10.1, Schedule 6 – 4 and 5 |
| MO charges Annual reconciliation payments or invoices | MOSL will make payments to wholesalers and retailers as required following the annual reconciliation. In the event of a deficit, invoices will be raised, which are payable within 20 days. | Within five business days of MOSL’s final determination of the Annual Reconciliation | MAC – Section 10.10.2 |
Market Operator Charges.
Invoiced amounts are required to be paid no later than 10 business days after invoice date by electronic transfer.
All funds are required to be paid within the invoice terms in full without set off or counter claim, withholding or deducting of any kind whatsoever. In the event payment is not made by a trading party, MOSL will withhold any payments which may be due to that trading party until which point the payment has been made.
| Invoice Period | Issuing Date | Payment Date |
|---|---|---|
|
April 2024 |
13/03/2024 |
27/03/2024 |
|
May 2024 |
12/04/2024 |
26/04/2024 |
|
June 2024 |
14/05/2024 |
29/05/2024 |
|
July 2024 |
13/06/2024 |
27/06/2024 |
|
August 2024 |
11/07/2024 |
25/07/2024 |
|
September 2024 |
13/08/2024 |
28/08/2024 |
|
October 2024 |
12/09/2024 |
26/09/2024 |
|
November 2024 |
11/10/2024 |
25/10/2024 |
|
December 2024 |
13/11/2024 |
27/11/2024 |
|
January 2025 |
12/12/2024 |
30/12/2024 |
|
February 2025 |
14/01/2025 |
28/01/2025 |
|
March 2025 |
13/02/2025 |
27/02/2025 |
Trading parties have 10 business days from the invoice due date to make payment before MOSL will commence formally recovering outstanding debts. To the extent an invoice remains unpaid after ten 10 business days of its due date, details of the non-paying parties and invoice amount will be published on the MOSL website after two business days. MOSL will also formally notify the Panel and Ofwat of the payment failure.
Should invoiced amounts remain outstanding after MOSL has notified all undertaker wholesalers and retailers, the Panel and Ofwat, MOSL will commence legal proceedings to recover the debts.
Details of unpaid funds classified as bad debts will be published on the MOSL website. MOSL will recover the unpaid funds through Default MO charges if significant, otherwise they will be part of the annual reconciliation process.
• Default Market Operator (MO) Charges
Unpaid invoices declared as bad debts will be recovered by MOSL by way of Default MO Charges. These charges are payable one half by undertaker wholesalers and one half by retailers (other than the non-paying trading party).
• Interest Charges
An interest charge will be made to the relevant wholesaler and retailer if payments for invoices are not made by the invoice due date.
| Month | Member | Balance Due (excl. VAT) | Date Due | Date Received |
|---|---|---|---|---|
|
January 2025 |
Nottingham City Council (Retailer) |
£394.74 |
30/12/2024 |
|
|
January 2025 |
County Water Limited (Retailer) |
£250 |
30/12/2024 |
|
|
January 2025 |
Albion Water Limited (Wholesaler) |
£10.93 |
30/12/2024 |
|
|
January 2025 |
Albion Water Limited (Retailer) |
£255.32 |
30/12/2024 |
|
|
December 2024 |
United Utilities Water Limited (Wholesaler) |
£87963.37 |
27/11/2024 |
30/12/2024 |
|
December 2024 |
Sutton & East Surrey Water PLC (Wholesaler) |
£2977.42 |
27/11/2024 |
10/01/2025 |
|
December 2024 |
Olympos Water Limited (Retailer) |
£250 |
27/11/2024 |
|
|
December 2024 |
County Water Limited (Retailer) |
£250 |
27/11/2024 |
31/12/2024 |
|
December 2024 |
Albion Water Limited (Wholesaler) |
£10.93 |
27/11/2024 |
|
|
December 2024 |
Albion Water Limited (Retailer) |
£255.30 |
27/11/2024 |
|
|
November 2024 |
Olympos Water Limited (Retailer) |
£250 |
25/10/2024 |
|
|
November 2024 |
Leep Networks Water Limited (Wholesaler) |
£84.31 |
25/10/2024 |
29/11/2024 |
|
November 2024 |
County Water Limited (Retailer) |
£250 |
25/10/2024 |
29/11/2024 |
|
November 2024 |
Albion Water Limited (Wholesaler) |
£10.93 |
25/10/2024 |
07/01/2025 |
|
November 2024 |
Albion Water Limited (Retailer) |
£255.43 |
25/10/2024 |
07/01/2025 |
|
October 2024 |
Olympos Water Limited (Retailer) |
£250 |
26/09/2024 |
|
|
October 2024 |
County Water Limited (Retailer) |
£250 |
26/09/2024 |
31/10/2024 |
|
October 2024 |
Albion Water Limited (Wholesaler) |
£10.93 |
26/09/2024 |
02/12/2024 |
|
October 2024 |
Albion Water Limited (Retailer) |
£255.41 |
26/09/2024 |
02/12/2024 |
|
September 2024 |
Olympos Water Limited (Retailer) |
£250 |
28/08/2024 |
|
|
September 2024 |
Albion Water Limited (Wholesaler) |
£10.92 |
28/08/2024 |
07/11/2024 |
|
September 2024 |
Albion Water Limited (Retailer) |
£255.34 |
28/08/2024 |
07/11/2024 |
|
August 2024 |
Olympos Water Limited (Retailer) |
£250 |
25/07/2024 |
|
|
July 2024 |
Olympos Water Limited (Retailer) |
£250 |
27/06/2024 |
|
|
June 2024 |
Olympos Water Limited (Retailer) |
£250 |
29/05/2024 |
|
|
May 2024 |
Olympos Water Limited (Retailer) |
£250 |
26/04/2024 |
Monthly Billing
Wholesaler and Retailer Market Operator Charges are based on the R1 Settlement Report published by MOSL on the 4th Business day of the month. MOSL runs this report at 18:00 on the last day of each relevant month to quantify the aggregate number of Supply Points for which the Market Operator Charge is based.
Year 2024/25
Wholesaler share of 2024/25 budget: £6,765,000.
Retailer share of 2024/25 budget: £6,765,000.
Year 2023/24
Wholesaler share of 2023/24 budget: £6,075,000.
Retailer share of 2023/24 budget: £6,075,000.
Year 2022/23
Wholesaler share of 2022/23 budget: £5,700,000.
Retailer share of 2022/23 budget: £5,700,000.
Year 2021/22
Wholesaler share of 2021/22 budget: £5,707,500.
Retailer share of 2021/22 budget: £5,707,500.
Year 2020/21
Wholesaler share of 2020/21 budget: £5,600,000.
Retailer share of 2020/21 budget: £5,600,000.
Year 2019/20
Wholesaler share of 2019/20 budget: £5,348,000.
Retailer share of 2019/20 budget: £5,348,000.
Year 2018/19
Wholesaler share of 2018/19 budget: £5,350,627.
Retailer share of 2018/19 budget: £5,350,627.
Year 2017/18
Wholesaler share of 2017/18 budget: £6,500,178.
Retailer share of 2017/18 budget: £6,500,178.
| Invoice Month | Wholesaler SPIDs | Retailer SPIDs | Primary Charges | Number of Retailers |
|---|---|---|---|---|
|
May-24 |
2,583,266 |
2,583,266 |
£227,727,111 |
43 |
|
Apr-24 |
2,584,644 |
2,584,644 |
£213,766,777 |
46 |
|
Mar-24 |
2,587,157 |
2,587,157 |
£226,679,071 |
46 |
|
Feb-24 |
2,589,104 |
2,589,104 |
£228,349,941 |
46 |
|
Jan-24 |
2,590,587 |
2,590,587 |
£220,453,443 |
46 |
|
Dec-23 |
2,592,112 |
2,592,112 |
£229,459,996 |
46 |
|
Nov-23 |
2,593,426 |
2,593,426 |
£221,963,501 |
46 |
|
Oct-23 |
2,594,312 |
2,594,312 |
£229,788,946 |
46 |
|
Sep-23 |
2,595,028 |
2,595,028 |
£233,789,671 |
46 |
|
Aug-23 |
2,597,249 |
2,597,249 |
£220,980,421 |
46 |
|
Jul-23 |
2,598,088 |
2,598,088 |
£233,406,320 |
46 |
|
Jun-23 |
2,598,861 |
2,598,861 |
£217,514,751 |
47 |
|
May-23 |
2,602,345 |
2,602,345 |
£206,513,062 |
47 |
|
Apr-23 |
2,602,905 |
2,602,905 |
£185,787,965 |
48 |
|
Mar-23 |
2,605,020 |
2,605,020 |
£213,271,316 |
49 |
|
Feb-23 |
2,606,961 |
2,606,961 |
£205,753,704 |
49 |
| Jan-23 | 2,608,078 | 2,608,078 | £198,951,863 | 49 |
| Dec-22 | 2,609,214 | 2,609,214 | £205,043,868 | 49 |
| Nov-22 | 2,610,377 | 2,610,377 | £196,952,767 | 50 |
| Oct-22 | 2,611,384 | 2,611,384 | £205,626,087 | 50 |
| Sep-22 | 2,613,138 | 2,613,138 | £204,600,011 | 50 |
| Aug-22 | 2,613,982 | 2,613,982 | £197,910,146 | 50 |
| Jul-22 | 2,615,229 | 2,615,229 | £202,262,815 | 50 |
| Jun-22 | 2,617,491 | 2,617,491 | £193,748,730 | 50 |
| May-22 | 2,620,227 | 2,620,227 | £192,826,619 | 50 |
| Apr-22 | 2,620,844 | 2,620,844 | £172,584,844 | 51 |
| Mar-22 | 2,622,337 | 2,622,337 | £189,973,357 | 50 |
| Apr-18 | 2,672,080 | 2,672,080 | £187,326,065 | 32 |
| May-18 | 2,671,204 | 2,671,204 | £208,127,694 | 33 |
| Jun-18 | 2,671,437 | 2,671,437 | £206,801,523 | 35 |
| Jul-18 | 2,670,892 | 2,670,892 | £214,408,101 | 34 |
| Aug-18 | 2,671,465 | 2,671,465 | £209,418,545 | 35 |
| Sep-18 | 2,671,952 | 2,671,952 | £215,973,606 | 34 |
| Nov-18 | 2,672,505 | 2,672,505 | £209,294,556 | 35 |
| Dec-18 | 2,673,355 | 2,673,355 | £211,371,424 | 36 |
| Jan-19 | 2,673,892 | 2,673,892 | £203,552,220 | 36 |
| Feb-19 | 2,672,470 | 2,672,470 | £211,172,136 | 36 |
| Mar-19 | 2,673,082 | 2,673,082 | £210,834,077 | 36 |
| Apr-19 | 2,673,292 | 2,673,292 | £187,727,699 | 38 |
| May-19 | 2,672,131 | 2,672,131 | £213,520,819 | 38 |
| Jun-19 | 2,670,095 | 2,670,095 | £199,011,708 | 38 |
| Jul-19 | 2,668,094 | 2,668,094 | £218,219,340 | 38 |
| Aug-19 | 2,666,781 | 2,666,781 | £214,054,422 | 38 |
| Sep-19 | 2,663,341 | 2,663,341 | £217,772,641 | 38 |
| Oct-19 | 2,660,659 | 2,660,659 | £217,416,657 | 39 |
| Nov-19 | 2,658,439 | 2,658,439 | £208,523,099 | 39 |
| Dec-19 | 2,657,099 | 2,657,099 | £214,708,924 | 38 |
| Jan-20 | 2,657,944 | 2,657,944 | £207,178,547 | 38 |
| Feb-20 | 2,655,982 | 2,655,982 | £213,359,809 | 39 |
| Mar-20 | 2,650,045 | 2,650,045 | £211,914,381 | 38 |
| Apr-20 | 2,650,390 | 2,650,390 | £198,765,546 | 37 |
| May-20 | 2,647,933 | 2,647,933 | £199,039,270 | 37 |
| Jul-20 | 2,642,883 | 2,642,883 | £159,426,808 | 37 |
| Aug-20 | 2,640,019 | 2,640,019 | £165,765,602 | 37 |
| Sep-20 | 2,638,316 | 2,638,316 | £163,807,154 | 37 |
| Oct-20 | 2,637,382 | 2,637,382 | £178,587,140 | 37 |
| Nov-20 | 2,636,963 | 2,636,963 | £190,752,675 | 38 |
| Dec-20 | 2,636,688 | 2,636,688 | £194,206,110 | 38 |
| Jan-21 | 2,636,252 | 2,636,252 | £172,183,955 | 39 |
| Feb-21 | 2,636,153 | 2,636,153 | £180,534,918 | 39 |
| Mar-21 | 2,633,510 | 2,633,510 | £172,837,142 | 39 |
| May-21 | 2,632,569 | 2,632,569 | £168,449,572 | 41 |
| Apr-21 | 2,632,912 | 2,632,912 | £152,507,344 | 40 |
| Jun-21 | 2,631,568 | 2,631,568 | £171,914,139 | 41 |
| Jul-21 | 2,630,745 | 2,630,745 | £181,707,809 | 41 |
| Aug-21 | 2,629,883 | 2,629,883 | £177,060,874 | 41 |
| Feb-22 | 2,623,831 | 2,623,831 | £191,729,838 | 50 |
| Jan-22 | 2,624,875 | 2,624,875 | £183,352,720 | 50 |
| Sept-21 | 2,629,276 | 2,629,276 | £185,814,645 | 42 |
| Oct-21 | 2,628,116 | 2,628,116 | £186,338,573 | 42 |
| Nov-21 | 2,626,332 | 2,626,332 | £179,005,672 | 42 |
| Dec-21 | 2,625,817 | 2,625,817 | £188,310,220 | 50 |