2,272MW NEM summer 2010- 2011 blackout risk |
First 8 of 8 paragraphs shown The market operator, AEMO had analysed drought risk from various angles and its Aggregate Energy Reductions per Region (Low rainfall scenario) data showed a high likelihood of high prices and blackouts across NSW, Victoria, South Australia and Tasmania in the the coming two summers. Ways to look at the data: In addition to the reductions in generation capacity outlined in the previous section, some generators may be subject to limitations in the amount of energy they can deliver due to the drought. These generators are still able to provide their full rated generation capacity for short periods of time, but cannot sustain full power output continuously. Regionally aggregated reductions in energy: The tables showed drought impacts: - expressed as gigawatt hours (GWh) for each quarter, as well as; - a percentage of the scheduled energy forecasts to be published in the SOO 2009. The theory: 'These energy reductions are based on the current water allocation and NEMMCO understands that Jurisdictions may consider allocation of additional water to the affected power stations if customer electricity supplies were threatened during these periods". However the 1 July allocations in the Murray Darling http://www.water.erisk.net showed most of South Australia and Victoria had no spare water to allocate and in many areas, there was 50 per cent less water than that require for stock and for essential human needs. Towns were advised to buy water to supplement essential needs. ...Log in to read rest of Article or image. |