City of Sydney plans recycled water network

Clover Moores Sydney city council seems to be plotting a slow secession from the electricity and water grids. The SMH has a report on an interesting plan for storing recycled water in local aquifers - City of Sydney plans recycled water network.

THE City of Sydney council is finalising plans for a recycled water network to be established throughout much of the city. It will include use of the Botany aquifer which extends from Redfern and Surry Hills, through Centennial Park and on to Botany Bay.

The rethink of the citys water supply comes as the council finalises plans to decouple the electricity network from the statewide supply grid, instead using a new network of power generators throughout the CBD which will provide cheaper and more reliable power to the city. If youre digging up the streets to put in the new trigeneration [electricity, heating and cooling] system, thats the golden opportunity to put in a recycled water network, the councils chief development officer for energy and climate change, Mr Allan Jones, said.

Sixty per cent of the cost of the infrastructure is in the trenching and traffic management. Thats why were also looking at automated waste collection.

The council recently outlined plans for an automated waste collection system, which remains under study. Piping water into the city and only drinking 2 per cent of that is just crackers, Mr Jones said. Taking into account cooking, and any possible way of ingesting water, no more than 20 per cent of the citys water needed to be of drinking quality, he said.

Central to the plan will use of recycled water and stormwater at new developments such as Barangaroo and Green Square.
Barangaroo will generate a surplus of recycled water which is expected to be used in water cooling towers and similar structures in other parts of the CBD.

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BMW Launches Its Answer to Tesla’s Supercharger Network

Wired has an article on BMWs foray into recharging networks for electric vehicles - BMW Launches Its Answer to Tesla’s Supercharger Network.

The biggest problem automakers selling electric cars face is limited range. No one wants to get caught without any juice. To get around this concern, Tesla, whose Model S offers the best range (up to 265 miles), is building a vast network of “Supercharger” stations that make it possible to take epic road trips. Now BMW is following suit, launching a network of charging stations to make owning its first all-electric car, the range-handicapped i3, more convenient.

The automaker announced last week that it has developed an impressively small, lightweight, and inexpensive charger that it is working to install around the country. BMW will sell the charger to “authorized partners”—starting with dealers—for $6,548. NRG eVgo, a private EV-charging company, will install at least 100 around California and offer free charging to i3 owners through the end of 2015.

The 24 kilowatt BMW i DC Fast Charger, developed with Bosch Automotive, can charge the i3’s battery up to 80 percent in 30 minutes. Compared to other chargers on the market, the BMW version is quite small: 31 inches tall, 19 inches wide and 12 inches deep. It weighs just 100 pounds, light enough to be mounted without reinforcing the wall or pouring extra concrete.

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Ausgrid smartening up the distribution network

Australian IT News has a look at a smart grid project within AusGrid, increasing the level of data available about the distribution network - Ausgrid zeroes in on network faults.

Energy utility AusGrid has deployed monitoring devices in 2300 street-level cabinets in an ongoing effort to gain a more granular visibility of its electricity distribution network.

The utility had previously announced it would roll out the PowerSense devices in 12,000 of its 30,000 street-level power distribution boxes, coupled with a back-end data analysis system supplied by IBM.

The IBM system was funded as part of the Federal Government’s $100 million ‘Smart Grids, Smart Cities’ program, in which Ausgrid - formerly EnergyAustralia - has been trialling smart grid hardware, meters and applications at select areas in Sydney, the Hunter Valley region and Newcastle.

Ausgrid managing director George Maltabarow told iTnews that the newly deployed sensors would measure voltage and current between Ausgrid’s high voltage (11,000V) major zone substations and its street-level distribution units, where the current is converted into the 240V current used in households.

He said the sensors indicated whether there was any service interruptions on that street and what loads the equipment were carrying.

“The system has already proved itself in emergency situations,” he said. “We have already had major failures and used the system to prioritise and optimise where in the network we put generators in to provide supply.”

Diagnostic data was transmitted over a 3G network to larger substations, and then to the utilitys central IT systems for monitoring and analysis over a fibre network.

Maltabarow said Ausgrid’s SCADA system had previously only provided visibility into the high voltage segment of the network. “Without this technology, we don’t know what’s going on in the [lower-voltage] distribution network,” he said.

The project was designed to deliver second-by-second analysis of faults in the utility’s electricity grid, with the same level of information previously only available to the company on an annual basis. ...

Once AusGrid has better data on its distribution network, the power utility will use a custom 4G network using a mixture of WiMAX and LTE technologies over spectrum leased from vividwireless to connect street-level distribution units to smart meters installed in residential premises.

The meters would optimise transmission and address service outages right down to the level of the individual customer. It would also allow customers to monitor their own energy usage at a house level and with individual devices, allowing room for potential customer rebates to incentivise energy consumption.

Maltabarow said AusGrid has identified 144 sites for antennae builds for a 4G network to complement these meters, 60 of which are already under construction.

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