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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

09Jun

Jul 2020 Settlement P1 Invoice Period

10Jun

MPC agenda published

10Jun

OPS submission deadline

16Jun

ORWG - June

17Jun

MPC papers published (non-confidential)

18Jun

User Forum

22Jun

MPS and OPS charts updated

22Jun

MPS and OPS reports published and OPS data refreshed

24Jun

Trading Disputes Committee

24Jun

MPC Meeting 39

30Jun

Panel Meeting 44

06Jul

Jun 2020 Settlement R1 Invoice Period

06Jul

Apr 2020 Settlement R2 Invoice Period

06Jul

Oct 2019 Settlement R3 Invoice Period

06Jul

Feb 2019 Settlement RF Invoice Period

10Jul

Aug 2020 Settlement P1 Invoice Period

10Jul

OPS submission deadline

15Jul

MPC agenda published

15Jul

Trading Disputes Committee

20Jul

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

21Jul

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

21Jul

Panel Meeting 45

22Jul

MPS and OPS charts updated

22Jul

MPS and OPS reports published and OPS data refreshed

22Jul

MPC papers published (non-confidential)

22Jul

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

29Jul

MPC Meeting 40

06Aug

Jul 2020 Settlement R1 Invoice Period

06Aug

May 2020 Settlement R2 Invoice Period

06Aug

Nov 2019 Settlement R3 Invoice Period

06Aug

Mar 2019 Settlement RF Invoice Period

07Aug

Sep 2020 Settlement P1 Invoice Period

12Aug

MPC agenda published

12Aug

OPS submission deadline

14Aug

CMOS Release 8.5 Patch Drop in MPS2 – 10am to 5pm

15Aug

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

19Aug

Trading Disputes Committee

19Aug

MPC papers published (non-confidential)

24Aug

MPS and OPS charts updated

24Aug

MPS and OPS reports published and OPS data refreshed

25Aug

Panel Meeting 46

26Aug

MPC Meeting 41

28Aug

CMOS Release 8.5 deployed in PROD – 6pm-2pm (next day)

02Sep

CMOS Release 8.5 deployed in MPS – 10am to 5pm

04Sep

Aug 2020 Settlement R1 Invoice Period

04Sep

Jun 2020 Settlement R2 Invoice Period

04Sep

Dec 2019 Settlement R3 Invoice Period

04Sep

Apr 2019 Settlement RF Invoice Period

09Sep

Oct 2020 Settlement P1 Invoice Period

10Sep

OPS submission deadline

16Sep

MPC agenda published

17Sep

User Forum

22Sep

MPS and OPS charts updated

22Sep

MPS and OPS reports published and OPS data refreshed

23Sep

Trading Disputes Committee

23Sep

MPC papers published (non-confidential)

29Sep

Panel Meeting 47

30Sep

MPC Meeting 42

02Oct

CMOS Release 9.0 deployed in MPS2 – 10am to 8am (next day)

06Oct

Sep 2020 Settlement R1 Invoice Period

06Oct

Jul 2020 Settlement R2 Invoice Period

06Oct

Jan 2020 Settlement R3 Invoice Period

06Oct

May 2019 Settlement RF Invoice Period

09Oct

Nov 2020 Settlement P1 Invoice Period

12Oct

OPS submission deadline

14Oct

MPC agenda published

14Oct

Trading Disputes Committee

15Oct

User Forum

16Oct

CMOS Release 9.0 Patch Drop in MPS2 – 10am to 5pm

19Oct

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

20Oct

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

21Oct

MPC papers published (non-confidential)

21Oct

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

22Oct

MPS and OPS charts updated

22Oct

MPS and OPS reports published and OPS data refreshed

27Oct

Panel Meeting 48

28Oct

MPC Meeting 43

05Nov

Oct 2020 Settlement R1 Invoice Period

05Nov

Aug 2020 Settlement R2 Invoice Period

05Nov

Feb 2020 Settlement R3 Invoice Period

05Nov

Jun 2019 Settlement RF Invoice Period

06Nov

CMOS Release 9.0 deployed in PROD – 6pm-2pm (next day)

09Nov

Dec 2020 Settlement P1 Invoice Period

10Nov

CMOS Release 9.0 deployed in MPS – 10am to 5pm

11Nov

MPC agenda published

11Nov

OPS submission deadline

14Nov

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

18Nov

MPC papers published (non-confidential)

18Nov

Trading Disputes Committee

19Nov

User Forum

23Nov

MPS and OPS charts updated

23Nov

MPS and OPS reports published and OPS data refreshed

23Nov

Panel Meeting 48a

24Nov

Panel Meeting 49

25Nov

MPC Meeting 44

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

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_

RT @BotanyRocks: Health Benefits Urban Allotment Gardening: 332 people (Japan). Allotment gardeners, compared to non-gardeners. Results: re…

16:09 - 5 Jun 2020

RT @DefraGovUK: Our environment is everything. It has got many of us through challenging times and is the solution to some of the biggest…

16:04 - 5 Jun 2020

Did you know @MOSL_ offers colleagues two days each year to volunteer? We're proud of our colleagues who are school… https://t.co/mTCqPx7tnH

17:20 - 4 Jun 2020

RT @TheWater_Report: Our June issue is out now including our coverage of the RWG's new Water Efficiency sub group working on an action plan…

16:52 - 4 Jun 2020

What a great idea! #Kudos #waterefficiency https://t.co/n8ei74yd4M

10:43 - 4 Jun 2020

RT @WaveUtilitiesUK: The recent hot weather and spending more time at home means there's a higher demand for water. Wholesalers are working…

10:42 - 4 Jun 2020

England may have set monthly records for sunshine hours in May, but it is putting increasing pressure on our water… https://t.co/chSX1UXgzN

10:33 - 4 Jun 2020

As part of the #COVID19 response, @Ofwat has extended the suspension Market Performance Standard Charges and Operat… https://t.co/LPp7tdUiXV

17:23 - 2 Jun 2020

RT @CCWvoice: Gulp! We've been using an extra 2.2 billion litres of water every day during the dry weather which has put a huge strain on o…

12:11 - 2 Jun 2020

Remember, @MOSL_'s consultation for the draft Market Performance Operating Plan closes this Wednesday 3 June. We wa… https://t.co/alVyB4YzyU

11:36 - 2 Jun 2020

RT @Ofwat: “We are looking to improve the way the [business retail] market works, including working with @MOSL_ to ensure better, more accu…

19:00 - 1 Jun 2020

Last week @MOSL_'s Board approved the Outline Business Case for the Bilateral Transactions Programme - giving the… https://t.co/7OadriUffr

15:54 - 1 Jun 2020

Welcome. What area do you need help with?

Market Codes

Panel & Committees

CMOS

Market Performance

FORTHCOMING EVENTS

Jul 2020 Settlement P1 Invoice Period

MPC agenda published

OPS submission deadline

ORWG - June

MPC papers published (non-confidential)

User Forum

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

Trading Disputes Committee

MPC Meeting 39

Panel Meeting 44

Jun 2020 Settlement R1 Invoice Period

Apr 2020 Settlement R2 Invoice Period

Oct 2019 Settlement R3 Invoice Period

Feb 2019 Settlement RF Invoice Period

Aug 2020 Settlement P1 Invoice Period

OPS submission deadline

MPC agenda published

Trading Disputes Committee

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

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

Panel Meeting 45

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

MPC papers published (non-confidential)

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

MPC Meeting 40

Jul 2020 Settlement R1 Invoice Period

May 2020 Settlement R2 Invoice Period

Nov 2019 Settlement R3 Invoice Period

Mar 2019 Settlement RF Invoice Period

Sep 2020 Settlement P1 Invoice Period

MPC agenda published

OPS submission deadline

CMOS Release 8.5 Patch Drop in MPS2 – 10am to 5pm

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

Trading Disputes Committee

MPC papers published (non-confidential)

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

Panel Meeting 46

MPC Meeting 41

CMOS Release 8.5 deployed in PROD – 6pm-2pm (next day)

CMOS Release 8.5 deployed in MPS – 10am to 5pm

Aug 2020 Settlement R1 Invoice Period

Jun 2020 Settlement R2 Invoice Period

Dec 2019 Settlement R3 Invoice Period

Apr 2019 Settlement RF Invoice Period

Oct 2020 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

Trading Disputes Committee

MPC papers published (non-confidential)

Panel Meeting 47

MPC Meeting 42

CMOS Release 9.0 deployed in MPS2 – 10am to 8am (next day)

Sep 2020 Settlement R1 Invoice Period

Jul 2020 Settlement R2 Invoice Period

Jan 2020 Settlement R3 Invoice Period

May 2019 Settlement RF Invoice Period

Nov 2020 Settlement P1 Invoice Period

OPS submission deadline

MPC agenda published

Trading Disputes Committee

User Forum

CMOS Release 9.0 Patch Drop in MPS2 – 10am to 5pm

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

MPS and OPS charts updated