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COVID-19 responses

We are publishing regular updates and actions taken in response to the COVID-19 pandemic on our dedicated COVID-19 page.

Market Codes

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The latest version of the market codes, the change process and consultations on changes.

Panel & Committees

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What the Panel does and meeting details, member biogs and panel committees

CMOS

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Everything to do with the core IT system that underpins MOSL’s role within the new water market

Market Performance

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Key charts and information outlining market performance including switching and settlement

FORTHCOMING EVENTS

03Dec

Bilateral Transactions Programme Operational Advisory Group (OAG) meeting

04Dec

Nov 2020 Settlement R1 Invoice Period

04Dec

Sep 2020 Settlement R2 Invoice Period

04Dec

Mar 2020 Settlement R3 Invoice Period

04Dec

Jul 2019 Settlement RF Invoice Period

08Dec

Jan 2021 Settlement P1 Invoice Period

10Dec

OPS submission deadline

15Dec

Panel Meeting 50

17Dec

Bilateral Transactions Programme Operational Advisory Group (OAG) meeting

18Dec

Trading Disputes Committee

22Dec

MPS and OPS charts updated

22Dec

MPS and OPS reports published and OPS data refreshed

07Jan

Dec 2020 Settlement R1 Invoice Period

07Jan

Oct 2020 Settlement R2 Invoice Period

07Jan

Apr 2020 Settlement R3 Invoice Period

07Jan

Aug 2019 Settlement RF Invoice Period

08Jan

Feb 2021 Settlement P1 Invoice Period

13Jan

MPC agenda published

13Jan

OPS submission deadline

18Jan

CMOS Planned Maintenance MPS/MPS2 – 10am to 4pm

19Jan

CMOS Planned Maintenance MPS/MPS2 – 10am to 4pm”

20Jan

MPC papers published (non-confidential)

20Jan

CMOS Planned Maintenance MPS/MPS2 if required – 10am to 4pm

21Jan

User Forum

25Jan

MPS and OPS charts updated

25Jan

MPS and OPS reports published and OPS data refreshed

27Jan

MPC Meeting 46

04Feb

Jan 2021 Settlement R1 Invoice Period

04Feb

Nov 2020 Settlement R2 Invoice Period

04Feb

May 2020 Settlement R3 Invoice Period

04Feb

Sep 2019 Settlement RF Invoice Period

05Feb

Mar 2021 Settlement P1 Invoice Period

06Feb

CMOS Planned Maintenance PROD – 11pm to 6am (next day)

08Feb

OPS submissiondeadline

10Feb

MPC agenda published

10Feb

OPS submission deadline

17Feb

MPC papers published (non-confidential)

18Feb

User Forum

22Feb

MPS and OPS charts updated

22Feb

MPS and OPS reports published and OPS data refreshed

24Feb

MPC Meeting 47

04Mar

Feb 2021 Settlement R1 Invoice Period

04Mar

Dec 2020 Settlement R2 Invoice Period

04Mar

Jun 2020 Settlement R3 Invoice Period

04Mar

Oct 2019 Settlement RF Invoice Period

10Mar

Apr 2021 Settlement P1 Invoice Period

10Mar

OPS submission deadline

17Mar

MPC agenda published

18Mar

User Forum

22Mar

MPS and OPS charts updated

22Mar

MPS and OPS reports published and OPS data refreshed

24Mar

MPC papers published (non-confidential)

31Mar

MPC Meeting 48

16Apr

CMOS Release 10.0 deployed in MPS2 – 10am to 8am (next day)

30Apr

CMOS Release 10.0 Patch Drop in MPS2 – 10am to 5pm

14May

CMOS Release 10.0 deployed in PROD – 6pm-2pm (next day)

18May

CMOS Release 10.0 deployed in MPS – 10am to 5pm

30Jul

CMOS Release 10.5 deployed in MPS2 – 10am to 8am (next day)

13Aug

CMOS Release 10.5 Patch Drop in MPS2 – 10am to 5pm

27Aug

CMOS Release 10.5 deployed in PROD – 6pm-2pm (next day)

31Aug

CMOS Release 10.5 deployed in MPS – 10am to 5pm

01Oct

CMOS Release 11.0 deployed in MPS2 – 10am to 8am (next day)

15Oct

CMOS Release 11.0 Patch Drop in MPS2 – 10am to 5pm

05Nov

CMOS Release 11.0 deployed in PROD – 6pm-2pm (next day)

09Nov

CMOS Release 11.0 deployed in MPS – 10am to 5pm

MOSL@mosl_

We are drafting our response to the @WaterUK 2030 Net Zero Routemap outlining the role the #waterretailmarket can p… https://t.co/pWsRVHFlAL

08:46 - 3 Dec 2020

DID YOU TUNE IN? @MOSL_ Market Performance Director @ytsegrin took part in the #FOUSummit session 'Beyond 2025: env… https://t.co/5HJCP6pRvo

15:15 - 2 Dec 2020

We are delighted that @KarmaOckenden joined us for this year's #CEOForum2020 and featured a write up of the event i… https://t.co/I14hPM0y9g

18:01 - 1 Dec 2020

Tomorrow the Panel will be holding an urgent meeting to discuss the consultation responses for change proposal CPW1… https://t.co/6RmBle6XnF

17:44 - 1 Dec 2020

Last month, as part of our Thought Leadership series, @MOSL_ Head of People, Angela Day, shared her thoughts about… https://t.co/C2LGMbR1RC

08:23 - 1 Dec 2020

We are the retail water market operator for England and Wales. Find out more about our purpose and vision here:… https://t.co/fixPtk3ZAb

17:04 - 30 Nov 2020

RT @CCWvoice: Make your voice heard! Our last event for business customers was a great success, so we’re doing it again. Join in the conver…

15:41 - 30 Nov 2020

This week @MOSL_ published updated good practice guides for Data Logging, Leak Allowances and Return to Sewerage Al… https://t.co/Gds93odzAT

08:59 - 26 Nov 2020

RT @PA_RaspberryPi: Excited to announce Sarah McMath from @MOSL_ as a PA Raspberry Pi Competition 2021 judge! She’ll support judging the in…

11:38 - 25 Nov 2020

At today's @Waterscan Self Supply Retail Forum, @MOSL_ CIO John Davies will be sharing the approach and scope of M… https://t.co/ndZJxD4jUv

10:52 - 25 Nov 2020

Today Market Operator Services Limited (MOSL) Market Performance Director @ytsegrin will be recording the… https://t.co/UWCppbAnPy

07:58 - 25 Nov 2020

RT @InstWater: There's now only one day to go before we host our @InstWater Environment Conference: Climate Change & Water, bookings are st…

07:46 - 25 Nov 2020

Welcome. What area do you need help with?

Market Codes

Panel & Committees

CMOS

Market Performance

FORTHCOMING EVENTS

Bilateral Transactions Programme Operational Advisory Group (OAG) meeting

Nov 2020 Settlement R1 Invoice Period

Sep 2020 Settlement R2 Invoice Period

Mar 2020 Settlement R3 Invoice Period

Jul 2019 Settlement RF Invoice Period

Jan 2021 Settlement P1 Invoice Period

OPS submission deadline

Panel Meeting 50

Bilateral Transactions Programme Operational Advisory Group (OAG) meeting

Trading Disputes Committee

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

Dec 2020 Settlement R1 Invoice Period

Oct 2020 Settlement R2 Invoice Period

Apr 2020 Settlement R3 Invoice Period

Aug 2019 Settlement RF Invoice Period

Feb 2021 Settlement P1 Invoice Period

MPC agenda published

OPS submission deadline

CMOS Planned Maintenance MPS/MPS2 – 10am to 4pm

CMOS Planned Maintenance MPS/MPS2 – 10am to 4pm”

MPC papers published (non-confidential)

CMOS Planned Maintenance MPS/MPS2 if required – 10am to 4pm

User Forum

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

MPC Meeting 46

Jan 2021 Settlement R1 Invoice Period

Nov 2020 Settlement R2 Invoice Period

May 2020 Settlement R3 Invoice Period

Sep 2019 Settlement RF Invoice Period

Mar 2021 Settlement P1 Invoice Period

CMOS Planned Maintenance PROD – 11pm to 6am (next day)

OPS submissiondeadline

MPC agenda published

OPS submission deadline

MPC papers published (non-confidential)

User Forum

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

MPC Meeting 47

Feb 2021 Settlement R1 Invoice Period

Dec 2020 Settlement R2 Invoice Period

Jun 2020 Settlement R3 Invoice Period

Oct 2019 Settlement RF Invoice Period

Apr 2021 Settlement P1 Invoice Period

OPS submission deadline

MPC agenda published

User Forum

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

MPC papers published (non-confidential)

MPC Meeting 48

CMOS Release 10.0 deployed in MPS2 – 10am to 8am (next day)

CMOS Release 10.0 Patch Drop in MPS2 – 10am to 5pm

CMOS Release 10.0 deployed in PROD – 6pm-2pm (next day)

CMOS Release 10.0 deployed in MPS – 10am to 5pm

CMOS Release 10.5 deployed in MPS2 – 10am to 8am (next day)

CMOS Release 10.5 Patch Drop in MPS2 – 10am to 5pm

CMOS Release 10.5 deployed in PROD – 6pm-2pm (next day)

CMOS Release 10.5 deployed in MPS – 10am to 5pm

CMOS Release 11.0 deployed in MPS2 – 10am to 8am (next day)

CMOS Release 11.0 Patch Drop in MPS2 – 10am to 5pm

CMOS Release 11.0 deployed in PROD – 6pm-2pm (next day)

CMOS Release 11.0 deployed in MPS – 10am to 5pm

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Document Versions

New MOSL Site Launch