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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

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)

22Feb

MPS and OPS charts updated

22Feb

MPS and OPS reports published and OPS data refreshed

24Feb

User Forum

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_

Today we've published the January edition of #MarketFocus which features an overview of our draft 2021/24 Business… https://t.co/lL1HxL8bos

14:27 - 19 Jan 2021

Remember to give us your feedback on our draft 2021-24 Business Plan plan. Consultation closes 22 January:… https://t.co/9teApLNwg2

10:56 - 19 Jan 2021

RT @EnvAgencyAnglia: Please don't walk through flood water as it can contain hidden dangers⚠️ Make sure you are signed up to our flood war…

08:40 - 19 Jan 2021

RT @IndepenLtd: Today Indepen and @TheWater_Report host the 3rd & final #SocialContractSummit debate exploring young professionals’ views o…

14:03 - 18 Jan 2021

RT @Ofwat: We’re excited to announce that entries are now open for the first round of the Innovation in Water Challenge! Find out more http…

14:02 - 18 Jan 2021

Our Cost to Serve Efficiency programme is targeted at driving down the cost of the core services that @MOSL_ provi… https://t.co/H65myrht6C

10:25 - 15 Jan 2021

Metering is one of the root causes of a number of key market frictions. Find out more about our Strategic Metering… https://t.co/JpyAQn1OhN

09:25 - 14 Jan 2021

Thank you @StretchingtheCity for leading our Wellbeing Webinar on smart eating strategies whilst working from home… https://t.co/GQV65Mw8T4

16:24 - 13 Jan 2021

We are looking for a Market Design Analyst to join our friendly and ambitious team. This is a permanent position ho… https://t.co/LRnkYFCdpO

09:54 - 13 Jan 2021

Our business planning process has focused on engaging closely with the Panel, Board and members, to develop a plan… https://t.co/1QvqNBRU0T

10:00 - 12 Jan 2021

If you want to find out more about being part of MOSL's website redesign beta group, email comms@mosl.co.uk for an… https://t.co/WInVg8VtXH

17:04 - 11 Jan 2021

Our business plan aims to deliver high #quality, #reliable and #consistent core services alongside a longer-term pl… https://t.co/ovT7Ql8YEj

13:36 - 11 Jan 2021

Welcome. What area do you need help with?

Market Codes

Panel & Committees

CMOS

Market Performance

FORTHCOMING EVENTS

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)

MPS and OPS charts updated

MPS and OPS reports published and OPS data refreshed

User Forum

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