Final testing under way at expanded Hornsdale big battery in Australia FacebookTwitterLinkedInEmailPrint分享Renew Economy:The Tesla big battery at Hornsdale in South Australia is entering the final testing of its expanded capacity, and is achieving some significant new records and milestones that would be expected when the world’s biggest lithium ion battery gets even bigger.The Hornsdale battery set a world record for a lithium-ion battery installation when it was installed in late 2017 with capacity of 100MW/129MWh. It has played an important control in providing frequency control and emergency back-up – both critical in helping keep the lights on during major network problems – as well as doing the normal storage thing of energy arbitrage, buying at the lows and selling at the peaks.It is now being expanded to a capacity of 150MW/194MWh, and is adding new services, particularly synthetic inertia, that will allow it to replicate more of the services once exclusive to fossil fuel generators in South Australia, and allow the grid to take another important step towards the shift to the state government target of “net 100 per cent renewables.”The expanded Hornsdale Power Reserve (its official name) is owned by the French renewable energy developer Neoen and located next to the 315MW Hornsdale wind facilities, and got the OK to connect last month. It is now going through testing that allows it to progress through various “hold points” that it can straddle once the market operator is satisfied with the outcome.On Tuesday, in the latest series of tests, the Hornsdale battery did a rapid 270MW flip – from charging at 120MW to discharging at 150MW. It appears to have flipped between the two on several different occasions – at least one of which had an immediate impact on the wholesale price of electricity, pushing it down to the peppercorn price of just above $8/MWh.Those 270MW flips – from the level of discharge to the level of charge – are likely a world record in both speed and extent of the change. And it’s this flexibility of the big batteries such as Hornsdale, and others at Dalrymple North, Lake Bonney, Gannawarra and Ballarat, that is particularly attractive to project owners and valuable to AEMO, the market operator.[Giles Parkinson]More: Tesla big battery sets new record as testing for Hornsdale expansion enters final stage
Rape of 9-year-oldA man who allegedly sexually molested a 9-year-old relative over three months ago in the mining town of Linden, Region 10 (Upper Demerara-Berbice), is expected to make his court appearance in the new week.Police Commander of Region 10, Superintendent Hugh WinterThis is according to Police Commander of Region 10, Superintendent Hugh Winter, who told Guyana Times on Sunday that the file was recently returned from the Office of the Director of Public Prosecutions (DPP).It was explained that the advice given by the DPP is that the man be charged with sexual activity with a child under the age of 16.However, he stated that although the recommendation came just before the Christmas holidays, the relevant authorities will have to wait for the new year for the Judicial system to commence new cases.Commander Winter noted that in the interim, investigators will contact the suspect and notify him of the development.Presently, the man, who is in his 60s, is on station bail ever since the matter was reported to the police.The male relative reportedly sexually molested the child twice in September.Reports are that the child left her mother’s residence on September 27, 2019, to spend the weekend with relatives in the mining town and returned home on September 29 in a withdrawn state.The little girl then told an aunt and other relatives of the incidents and the police were contacted.The child’s grandmother had told Guyana Times that the middle-aged perpetrator took her granddaughter along with his two grandchildren to “Blue Water Lake” and a creek in “Buck Town” under the pretence of teaching them to swim.However, he allegedly touched the 9-year-old’s private parts inappropriately despite her asking him to stop.“She said the other children were playing by themselves in the water and he took her way from them. According to what she told her mother, he started touching her butt and vagina in the water and even though she told him to stop he ignored her pleas and continued. He took his penis and rubbed it by her butt and inserted his finger inside of her vagina while she kept crying for her mother and crying for him to stop until he was ready to stop,” the grandmother related.However, following the police report, the suspect was arrested and told of the allegation, which he denied. He was released on a small amount of station bail.The furious grandmother further explained that the child underwent a medical examination which proved that she had been sexually violated.It was reported that relatives of the suspect contacted the relatives of the child offering to settle the matter in the form of financial compensation.“I don’t want any money from them or anyone because I won’t sin my soul. We need justice for this innocent child and therefore we want to go to the court and let him face the consequences for what he did to this little child. Justice delayed is justice denied,” the distraught grandmother added.