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Today MOSL publishes its 2021/22 Annual Market Performance Report which provides an overview of trading parties’ performance and assurance over the past 12 months.

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Market Operations

From settlements and credit arrangements to disputes, we provide you with the resources you need to operate effectively.

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Market Assurance

Find out more about our market entry process, compliance as Market Operator and our performance activities.

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Discover more about our business planning activities, as well as progress within the Bilateral Transactions Programme.

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Peer Comparison League Tables

View charts comparing the performance of retailers and wholesalers.

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Market Charges

Information on the various charges issued by MOSL to its members.

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Compliance and Audit

Read more about our trading party and Market Operator compliance and audit activities.

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Market Focus

Read our publication, which provides a monthly update on MOSL and the water retail market.

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View active change proposal consultations available for trading party feedback.

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Latest news

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15/06/2022

MOSL publishes 2021/22 Annual Market Performance Report

Today MOSL publishes its 2021/22 Annual Market Performance Report which provides an overview of trading parties’ performance and assurance over the past 12 months.

23/06/2022

MOSL responds to Lords committee inquiry into Ofwat

We have submitted a response to the House of Lords Industry and Regulators Committee inquiry into the work of Ofwat. 

23/06/2022

Market Focus - June 2022

Today we've published the June edition of Market Focus, our monthly update to our members.

15/06/2022

MOSL publishes Data and Analytics Roadmap

As part of our Data Insight improvement programme and Market Data Strategy, we have published a Data and Analytics Roadmap.

Upcoming events

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01/07/2022

CMOS Planned Maintenance MPS and MPS2 - 10am to 8pm

30/06/2022

CMOS Planned Maintenance MPS and MPS2 - 10am to 8pm

29/06/2022

Webinar: metering-related roles and responsibilities - phase 1 research findings