Australian grid regulator releases blueprint for integrating 75% green electricity

first_imgAustralian grid regulator releases blueprint for integrating 75% green electricity FacebookTwitterLinkedInEmailPrint分享Renew Economy:The Australian Energy Market Operator has laid out an action plan to accommodate levels of up to 75 percent “instant” penetration of wind and solar in Australia’s main grid by 2025, saying the country had the technical know-how to cope with such a high penetration of wind and solar, but needed to urgently update the market and regulatory settings.Releasing the long-await Renewable Integration Study, a key adjunct to its 20-year blueprint for the grid transition known as the Integrated System Plan, AEMO chief executive Audrey Zibelman reinforced the widespread view that integrating very high levels of renewables is not so much a technical challenge. It’s more about updating rules and regulations to make them fit for purpose for a new system, and to add new markets to ensure the availability of essential services such as inertia and voltage. Without these changes, AEMO warns it may have to limit the contribution of wind and solar resources to 50 or 60 per cent of electricity supply at any point in time.“Australia already has the technical capability to safely operate a power system where three quarters of our energy at times comes from wind and solar energy generation,” Zibelman says in a statement accompanying the report. “However, to do so requires changes in our markets and regulatory requirements. Otherwise, AEMO will be required to limit the contribution of these wind and solar resources to 50 or 60 per cent of electricity supply at any point in time, even though they are the lowest cost way of providing electricity,” she warned.Wind and solar have recently accounted for close to 50 per cent of supply in the National Electricity Market in some trading periods (more than 50 per cent including hydro, and up to 140 per cent wind and solar in South Australia), although there have been some 5-minute intervals where wind and solar has already exceeded 50 per cent.AEMO, which is responsible for managing grid and keeping the lights on, debunks this and says there is no reason Australia cannot have a very high level of renewables: “Beyond 2025, AEMO has not identified any insurmountable reasons why the NEM cannot operate securely at even higher levels of wind and solar penetration, especially with ongoing technological advancement worldwide,” it notes.Indeed, its ISP maps out a path – mostly through infrastructure – to accommodate a 90 per cent share of renewables in Australia’s main grid by 2040.[Giles Parkinson]More: AEMO lays out “action plan” to manage 75 pct wind and solar by 2025last_img read more

Mothers of children with Down Syndrome encouraged to terminate

first_imgStuff 19 April 2017Family First Comment: Disturbing.The mother of an unborn child with Down Syndrome says she was advised by medical professionals to terminate the pregnancy.Antenatal screening meant Masterton mother of two Danielle Bolt knew her unborn daughter Noa would have Down Syndrome, but she did not hesitate in giving birth to her now 21-month-old.Bolt was angry with the advice she was given and said doctors and nurses should change their approach.“I was told to terminate by the specialist,” Bolt said. “They literally said to me Noa will become a burden on society and she’s not worth it.”“It’s so cruel because they don’t know her potential.”Bolt, who went for Chorionic Villus Sampling (CVS) at Wellington Hospital, said she was called by staff, who apologised and told her that her daughter would have Down Syndrome.Bolt was upset they felt the need to apologise about an otherwise healthy baby girl.READ MORE: read more

Bonsignore: Clippers should consider trading Blake Griffin, but seller beware

first_imgThe notion the Clippers might be making Blake Griffin available in a trade should come as a surprise to no one.And it has little to do with how they’ve gone 18-5 in Griffin’s recent absence or how Griffin punched out an assistant equipment manager last month in Toronto.Even though the Clippers might point to both situations as justification for trading away one of the top seven players in the game, the unquestioned face of their franchise and one of the most marketable athletes in sports.Trading Griffin goes much, much deeper than all that. The reality is, it’s been five seasons since the Clippers put Chris Paul together with Griffin and DeAndre Jordan and they are no closer to legitimately competing for an NBA title today as they were five years ago.The sad truth is, the Clippers have changed coaches, general managers, supporting casts and even owners over the past five years, yet the path to an NBA title is more uncertain now that it’s ever been.And the further the Golden State Warriors and the San Antonio Spurs and perhaps even the Oklahoma City Thunder sprint ahead of the Clippers in the Western Conference, the more we realize the Griffin/Paul/Jordan core isn’t capable of delivering an NBA title.It ain’t working.And it probably never will. Newsroom GuidelinesNews TipsContact UsReport an Errorcenter_img Not at the highest level, anyway.And that means the Clippers are standing face to face with a remarkably difficult decision.Are they OK with being a very good team that has very little hope of hanging a championship banner?Or are they determined to do everything and anything possible to closing the gap on the Spurs and Warriors and anyone else kicking up dust in front of them?If the answer is the latter, than no player on the Clippers’ roster should be considered untouchable.Not even the face of the franchise. Based on all that smoke billowing lately, it looks like the Clippers have come to the conclusion it might be time to break up the current core in hopes of quickly reconstructing an even better one.Whether you believe the Clippers approached the Denver Nuggets recently about a Griffin and Lance Stephenson trade for Danilo Gallinari, Kenneth Faried, Will Barton and Nikola Jokic really isn’t the point.It’s pretty clear the two teams talked about the possibility of a Griffin trade, and that the Clippers have likely had discussions with other teams.All of which means the Clippers are at least warming up to the ideal of parting with their All-Star power forward.And that means it’s likely only a matter of time before they fall upon a deal that’s acceptable to them and their trade partners.But they better tread carefully.No matter what their record is without Griffin, there is no way they are better without him.He’s a tremendous ball handler and passer and an offensive force down low and from the mid-range, where his jumper has improved considerably. And for all the talk the offensive flow is stagnant when he’s on the court, the numbers say otherwise. The Clippers were the most efficient offensive team last year and among the best this year.He’s arguably a top five player in the game, and at the very least among the top seven.And he’s the most marketable player in the history of the Clippers, who have been one of the best teams in the league almost since Griffin’s arrival.It’s risky business trading away talents as exceptional as Griffin, and history has shown blockbuster trades rarely work out for the team dealing away the marquee player.Going all the way back to the Milwaukee Bucks shipping out Kareem Abdul-Jabbar or the Philadelphia 76ers trading Charles Barkley and on and on and on, history is not on the side of the team trading away the best player.You are more likely to set your franchise back by years than you are closing the gap on the teams ahead of you.The Clippers can’t be so seduced by the dependability of players like Gallinari and Faried and the upside of Jokic that they’d part with a 27-year-old five-time All-Star in the prime of his career who is averaging 23 points and nine rebounds per game.It’s an unacceptable return for an elite player, it puts the Clippers even further behind the Warriors and Spurs then they already are with Griffin, and it completely wastes another year in the prime of Paul’s and Jordan’s careers.If you are going to trade Griffin, you damn well better do it to improve your team.You don’t do it to stand pat. You don’t do it to theoretically get better in a few years,You do it to get better right now.The Clippers should be open to trading Griffin.As they should Paul and Jordan and anyone else on the roster.But they better be careful.History isn’t on the side of teams that trade away All-Star players.last_img read more