31–40 of 99 posts
"Monitor electricity 3600 times a second" in the video seem wrong, as AC is usually 50 to 60 HZ that would be measuring the consumption 60 to 72 times per period which does not really make sens. It's likely 3600/hour or 1/seconds. Immediately make me doubt the quality of the research. Edit: DC -> AC. was tired.
An interesting alternative to battery storage opened in the UK this week - liquified air energy storage. I wonder if this may be helpful. https://www.theguardian.com/business/2018/jun/05/pioneering-...
>liquified air energy storage. I wonder if this may be helpful. Let me answer this: No, it would not be helpful, because on pretty much all metrics (capital and operating costs, efficiency, flexibility, size etc) this technology is way worse than battery storage. Unfortunately - today - a lot of money which could be sensibly used deploying cost effective technology such as solar and wind power (and to a lesser extent…
http://artsonline.monash.edu.au/climate-change-communication...
"Monitor electricity 3600 times a second" in the video seem wrong, as AC is usually 50 to 60 HZ that would be measuring the consumption 60 to 72 times per period which does not really make sens. It's likely 3600/hour or 1/seconds. Immediately make me doubt the quality of the research. Edit: DC -> AC. was tired.
> DC is usually 50 to 60 HZ Immediately make me doubt the quality of the comment
Earlier quoted context omitted.
From the article: "the growing peak demand that comes at the end of the day, as the sun sets.". So the solar production of electricity peaks earlier than the end-of-day consumption peak.
There is a company in Australia that have improved flow batteries technology to the point where it can be miniaturised down to the size of a fridge freezer (previously they were the size of shipping containers) ten shipping containers full of them are able to store 3.2 megawatt-hours of energy and discharge a megawatt of power for over three to four hours which is roughly enough to keep 500-600 average homes going fo…
I head about them several years ago but haven't seen much since. Do they have the scale/ pricing to sell to the average consumer yet?
Why not organise accordingly?
First, there are batteries: solar roofs should come with batteries, than will power the house during the night. Authorities could enforce that, and could also build larger energy storages with batteries at a region level (see recent examples from Tesla).
Then, this is mostly communication: why not make the grid and the roof "talk" to each other and the roof be turned off from the grid when there is no need for it? Is it because subsidies or some kind of mandatory buy from the grid that this could be an issue? otherwise there could be incentive to have this better integration with the whole system.
Otherwise, use bitcoin miners, during the day!
"Monitor electricity 3600 times a second" in the video seem wrong, as AC is usually 50 to 60 HZ that would be measuring the consumption 60 to 72 times per period which does not really make sens. It's likely 3600/hour or 1/seconds. Immediately make me doubt the quality of the research. Edit: DC -> AC. was tired.
*AC is 50 to 60Hz (DC does not alternate). Also I can see how it's possible that electrical fluctuations could happen at a higher rate than the utility frequency. 3600 Hz does seem like a lot though.
Earlier quoted context omitted.
Solar isn't the problem, but the renewables situation is related. We had a Labor government with the Greens holding a balance of power from ~2010 to ~2013. The Labor party had, I believe, been opposed to a carbon tax up until that point. Then, likely because of pressure from the Greens, introduced a carbon tax. The lesson there will not have been lost on big investors. If anyone invests in fossil fuel generation (ie,…
Following your reasonning, there is no reason why investors should shy away from renewables. The Greens would not harm any project of additional large scale batteries, for example.
Please note that there are powerful lobby groups in Australia that have interests in fossil fuel businesses and promote journalism that exaggerates problems with renewable energy. Eg see this: http://artsonline.monash.edu.au/climate-change-communication...