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

SeaBird cuts losses in fourth quarter 2018

first_imgSeismic company SeaBird Exploration increased its revenues during the last quarter of 2018 and managed to cut its losses compared to the prior-year period.Eagle Explorer; Source: SeaBird ExplorationIn its financial report released on Tuesday SeaBird said it had recorded revenues of $6.8 million in 4Q 2018 compared to $5.4 million in 3Q 2018 and $5.5 million in 4Q 2017.The company reported a net loss of $3.7 million for 4Q 2018 compared to the net loss of $4.9 million in the same period in 2017.The company had a vessel utilization of 58% in 4Q 2018, compared to 55% in 3Q 2018 and 42% in 4Q 2017.The company had three active vessels during the quarter, one vessel starting operations late in 4Q after docking, and one vessel warm stacked. SeaBird said it expects to maintain four vessels in operation for the first quarter of 2019 and expects utilization for 1Q 2019 to be higher than 4Q 2018. Tendering activity healthy SeaBird said that the improved oil & gas sentiment seen earlier in the year continued in quarter four, although the reduction in the oil price created some near-term uncertainty in the financial markets. Tendering activity continued at a healthy level.According to the company, most contracts year to date have been related to ocean bottom seismic surveys (OBN) largely driven by the oil & gas companies’ focus on increased oil recovery on producing fields, as well as near-field exploration. The OBN market is thus experiencing strong growth with tenders coming from all geographic regions. OBN-related source vessel tenders have a high conversion rate.“We continue to see a healthy number of exploration-related 2D and 3D streamer survey tenders, and we were recently awarded two 2D contract surveys in South America.“Multi-client streamer activity is still lagging given limited prefunding. We would expect this market segment to improve as exploration spending by the oil companies increases,” SeaBird said.“With many oil companies now indicating increased exploration activity and spending in 2019, we expect tender activity to recover and continue at a solid rate going forward. Moreover, we believe the ongoing consolidation of the seismic fleet and the reduction in seismic streamer operators have improved the company’s position in its core markets,” SeaBird stated.Seismic spending in 2018 has largely been targeting increased oil recovery (IOR) from producing fields and near-field exploration, and this has resulted in a commensurate increase in source vessel demand related to ocean bottom seismic surveys. SeaBird stated it expects the growing volume of ocean bottom seismic activity to continue in 2019.last_img read more

IN CONTROL: Syracuse dismantles Villanova, nets 20 en route to highest offensive output of season

first_imgNarrowly clinging to a one-goal lead with about five and a half minutes left in the first quarter, Syracuse coughed up the ball — Villanova was ready to make its move.But instead of the Wildcats getting the ball upfield and potentially swinging momentum in their favor, freshman JoJo Marasco turned things right back around for SU.As Villanova tried to clear on the right side, Marasco and Stephen Keogh hounded the Wildcat defenders. Marasco finally knocked the ball free, and Keogh picked up the ground ball. He took a few steps toward the cage before finding an open Cody Jamieson just to the right of the crease.Jamieson caught the pass and ripped the shot past Wildcat goalie Billy Hurley to give SU a two-goal lead.From then on, No. 3 Syracuse never looked back. The Orange (6-1, 2-0 Big East) blasted the young Wildcats 20-6 in front of 2,341 people in the Carrier Dome Monday afternoon. It was the most goals SU has scored in a game this season and the fewest it has allowed. Syracuse controlled the ball most of the day, and its high-pressure play frustrated No. 15 Villanova (5-3, 0-1) as the Orange dominated all facets of the game.AdvertisementThis is placeholder textFor Wildcats junior longstick midfielder Brian Karalunas, though, there was one aspect that really keyed Syracuse to the blowout win. The SU riding — when the offense works to force turnovers as the defense attempts to clear its zone — was too much for Villanova to handle.‘Speaking from a defensive standpoint, trying to clear the ball, I honestly think that Syracuse’s best asset of the game today was their ride,’ he said. ‘More than their 6-on-6 sets. They really outplayed us in the riding and clearing game, and I think that’s what led to the wide margin of victory.’Other than the first five minutes of the game, in which Villanova scored the game’s first goal, the outcome was never really in question. Syracuse outscored (5-2), outshot (14-5) and outhustled (13 groundballs to four) the Wildcats in the first quarter. Junior Jeremy Thompson and Keogh led the Orange with three goals apiece, and Marasco dished out a career-high four assists.SU would gain possession and keep it for chunks at a time while Villanova struggled to just get the ball into its offensive side of the field. And the lack of possession and lack of success got to the Wildcats, who started six underclassmen.‘As the hole got deeper for them, you could see the frustrations coming out a little,’ junior defenseman John Lade said. ‘They were trying to force the ball a little more and, yeah, you just saw a little frustration when they couldn’t get the ball that much.’Some of the Villanova players could not hold in their emotions, even early on in the game. After a holding call on midfielder Nolan Vihlen following a faceoff at the end of the first quarter, the sophomore jogged over to the sideline and spiked his stick on the ground. He then paced back and forth along the sideline behind his teammates as SU’s Jovan Miller scored on the ensuing possession.Syracuse continued its domination throughout the rest of the game. Villanova struggled to find its offense, mostly due to Syracuse’s ball control and ball-hawking rides.The Wildcat defensive unit accounted for 10 of the team’s 21 turnovers. It could not solve the Orange’s pressure for any stretch of time as SU switched up its tactics throughout the game.‘I thought we rode pretty well,’ SU head coach John Desko said. ‘(Assistant coach Kevin Donahue) had a pretty good game plan coming in and mixed it up. We used probably three different rides today, and I think just the changing of the rides did a very good job.’By the fourth quarter, Syracuse held a 15-5 lead and rotated in some of its bench. But that didn’t even help Villanova slow down the Orange attack. Redshirt freshman Ryan Barber and junior Alex Giocondi tallied their first scores of the season in the final period to cap off the day.‘I thought that maybe a little bit of the Dome bug might have got to (Villanova) a little bit,’ Desko said. ‘But I think a lot of it had to do with our possessions and how these guys played today. … Just playing pretty good offense and the defense being stingy.’zjbrown@syr.edu Facebook Twitter Google+ Commentscenter_img Published on March 29, 2010 at 12:00 pmlast_img read more