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Electricity demand and generation scenarios
Independent demand and generation scenarios are a key reference point for preparing and assessing major grid investment proposals by Transpower. Transpower will be required to use the 2012 Electricity Demand and Generation Scenarios (EDGS) when developing major capital expenditure proposals.
Introducing the EDGS
The Ministry strongly encourages stakeholders to participate in the EDGS 2012 engagement process. This will ensure the EDGS has wide acceptance across industry, government and the wider public.
- Download the discussion paper: Introducing the Electricity Demand and Generation Scenarios - July 2012 [639 KB PDF]
- Download the proposed base capital cost assumptions for the EDGS 2012 [136 KB XLS]
Submissions and cross-submissions on the discussion paper have closed.
The Ministry will give consideration to all submissions and cross-submissions and decide on appropriate next steps for the EDGS 2012.
Progress update - September 2012Recently the Ministry consulted on the discussion paper: Introducing the Electricity Demand and Generation Scenarios. The Ministry revived a number of submissions and cross-submissions on the discussion paper and on 18 September 2012 hosted a workshop for submitters to address key issues raised in the submission process. Following the workshop the Ministry has now started collating assumptions, and has begun the modelling process for the Draft EDGS 2012. The Draft EDGS 2012 will be released later this year for consultation. |
Indicative EDGS timeline
The next EDGS release will be the Draft EDGS 2012. The Draft EDGS 2012 will propose detailed assumptions, scenarios and forecasts, and will have its own consultation process.
The following table highlights dates for key EDGS outputs. For more details please see the discussion paper. These dates are subject to change.
Indicative Dates | Ministry Publication |
| July 2012 (complete) | Introducing the Electricity Demand and Generation Scenarios (EDGS) |
| 4th Quarter 2012 (in production) | EDGS 2012 Draft – including consultation process |
| To be confirmed | Final EDGS 2012 |
Background information
The 2009 Ministerial Review of Electricity Market Performance proposed measures to improve the performance of the electricity market, its institutions and its governance. As a result, on 1 November 2010, the Electricity Commission was disestablished with most of its functions being transferred to the new Electricity Authority.
Responsibility for approving Transpower’s grid expenditure plans transferred to the Commerce Commission and the Ministry of Business, Innovation and Employment is now responsible for preparing demand and generation scenarios to feed into this process. The 2012 Electricity Demand and Generation Scenarios (EDGS) will replace the demand and generation scenarios contained in the 2010 Statement of Opportunities (SOO) (produced by the Electricity Commission).
Transpower proposals are subject to Commerce Commission approval under the Transpower Capital Expenditure Input Methodology (Capex IM), which was finalised in January 2012.
Relevant links
Transpower Capital Expenditure Input Methodology (Capex IM)
Statement of Opportunities (SOO) – archive
Feedback and discussion welcomed
In addition to the formal engagement process, the Ministry welcomes stakeholder feedback at any time. If you would like to contact us, please email: EDGS@med.govt.nz.
Submissions and cross-submissions received
The Ministry will give consideration to all submissions and cross-submissions and decide on appropriate next steps for the EDGS 2012.
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