1 / 7

UMS Working Group update

UMS Working Group update. 4 August 2011. Andrew Pace UMS Working Group Chair. 1 | Energy Networks Association - DCMF. UMS Working Group. 4 August 2011. 2 | Energy Networks Association – DCMF. Set up in April 2011 to look at 2 issues:

trixie
Télécharger la présentation

UMS Working Group update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UMS Working Group update 4 August 2011 Andrew Pace UMS Working Group Chair 1 | Energy Networks Association - DCMF

  2. UMS Working Group 4 August 2011 2 | Energy Networks Association – DCMF • Set up in April 2011 to look at 2 issues: • Introduction of 4 new tariffs to replace NHH UMS single rate • Continuous • Dusk to Dawn • Half night • Dawn to Dusk • Remove the discrepancy between NHH and HH charges

  3. Introduction of 4 new NHH tariffs 4 August 2011 3 | Energy Networks Association – DCMF • Need to produce coincidence factors & load factors for each profile • Data available from Meter Operator • Change to CDCM was modelled and assessed • Discrepancy between NHH and HH UMS tariffs was exaggerated by the introduction of the 4 tariffs • Conclusion: re-look at this issue when NHH/HH discrepancy has been resolved

  4. UMS HH/NHH Discrepancy 4 August 2011 4 | Energy Networks Association – DCMF • Reason for Discrepancy: • NHH tariffs derived based on coincidence factors & load factors • HH tariffs derived from peaking probabilities • The different approaches are reconciled to some extent using a coincidence correction factor • Pricing discrepancy also exists for PC 5-8, but its larger for UMS because there is no capacity charge.

  5. UMS HH/NHH Discrepancy 4 August 2011 5 | Energy Networks Association – DCMF • Possible Solutions: • 11 ideas considered (plus some combinations of the 11) • Preferred Option – to remove the HH tariff which is considered less cost reflective than the NHH tariff due to the seasonality of UMS • However, issue with load shedding UMS meant this idea does not better meet licence conditions. • Other options considered: • Introducing seasonality by creating a new timeband • Introducing a capacity charge • Derive NHH tariffs directly from HH tariffs

  6. UMS HH/NHH Discrepancy 4 August 2011 6 | Energy Networks Association – DCMF • A number of solutions tried to address the fundamental reason behind the discrepancy • These solutions looked at using the same methodology to derive HH and NHH tariffs. • These options were discounted because they had a big impact on other tariffs, not just UMS. • UMS group agreed that these options would offer a more enduring solution to the NHH/HH discrepancy issue

  7. UMS Group – Next Steps 4 August 2011 7 | Energy Networks Association – DCMF • The UMS group submitted a final paper to MIG on 24th June. • Recommended that the NHH/HH discrepancy should be addressed by using a consistent methodology for deriving NHH and HH prices. • A new working group will be set up to examine this issue • The decision was taken to set up a new group to allow any interested party to participate, as the impact could be large on some tariffs. • The options considered and documented by the UMS group will be evaluated by the new working group.

More Related