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Post by ComfortZone on Nov 27, 2024 9:08:10 GMT 12
I don’t have a massive chip on my shoulder but the grid tie scheme doesn’t achieve much else other than giving folks a rebate on their power bill . I don’t think it upsets the grid much here but in Germany it got to such a scale it really fucked up the grid supply and cost the Govt way more money than it saved . I've seen a complaints about Solar Zero on the socials for the last few months, and on social pages nothing to do with solar. They would install the gear, you'd lease it, and they were responsible for maintenance, replacing stuff when it died. The complaints were that they never replaced anything and you couldn't even get hold of them if there was a problem. Not surprised to hear it is all part of Black Rock, that great saviour according to Saint Dame Jacinda. I just thought it was an interesting story in that the economics aren't there. I did a deep dive into putting solar on my house, the savings would struggle to cover the cost of capital, specifically the interest on my mortgage from the cost of the install. That is for a retrofit and it should be better for a new build, but I can't even see how it could be economic for a new build from a personal perspective. That is grid tied solar. And that is including the banks random cash back and special interest rate offers for installing solar. It just doesn't add up. Going to be interesting to see how existing customers are treated seeing as the solar equipment will most likely be owned by Solar Zero, as best I could understand the arrangement was like a rental. |
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Post by ComfortZone on Nov 27, 2024 9:35:39 GMT 12
countering people living in Lala land newzealandenergy.substack.com/p/batteries-by-massThe motivation for starting this Substack was to help explain some the topics that pop up in the New Zealand energy conversation. Much of which is often a jumbled mess of misleading press releases smooshed together by the media who clearly did not spend any time in a physics class.
Some of the statements made are simply bizarre, often comparing apples and oranges.
Today’s example is not from the media, but instead comes from Rewiring Aotearoa (www.rewiring.nz), a not-for-profit advocacy group promoting electrification of New Zealand, who frankly should know better (CZ - maybe not, cannot find anyone involved with them with engineering qualifications). 
Ok so let’s break this one down a bit shall we.
1. A battery is a storage device, it’s akin to an empty jerry can in petrol terms.
2. Oil is an energy source, it should be compared to an energy source, in this case electricity, not the weight of a battery.
3. If we were to electrify everything, we would need to compare how much oil products we import to how much additional electricity we would need to generate by fuel source.
4. For this comparison to be done properly would compare energy sources joule for joule with a correction factor for electric drive system efficiency relative to a combustion engine-based drive system.
5. We would also need to consider utility as batteries have major limitations in heavy transport such as trucks, and the efficiency advantage of an electric drive system is very quickly eroded by the weight, size and comparatively low energy density of the batteries.
6. Anyone who lived through August this year in New Zealand will appreciate that we don’t actually have enough generation, to the extent that we had to shut down heavy industries, and that battery vehicles are more often than not coal fired cars.
7. Given that this solution relies on vast increases in generation, transmission infrastructure, grid management and rare earth materials it will never be cheap.
8. This is again the trap of narrow boundary analysis. What are the true lifecycle emissions associated with replacing the existing fleet and developing the network infrastructure to electrifying everything?
This is confusion by conflation and a pretty dishonest way to promote your favorite solution.
Luckily, the readers of this Substack are too sophisticated for that malarkey.
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Post by sloopjohnb on Nov 27, 2024 15:12:47 GMT 12
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Post by GO30 on Nov 27, 2024 18:06:13 GMT 12
So they reckon it is better to dig up,a lot using kids and/or diesel, 5.6 tons of shit to make a 500kg battery meaning 5 tons go to waste is better than petrol.
One barrel of oil is 136kg, that gets turned into 160-170lts of petrol of which none is wasted.
Numbers can be fun.
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Post by harrytom on Nov 27, 2024 22:08:55 GMT 12
Now I know why I keep falling over. |
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Post by ComfortZone on Nov 30, 2024 12:45:31 GMT 12
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Post by ComfortZone on Dec 2, 2024 11:51:14 GMT 12
I've seen a complaints about Solar Zero on the socials for the last few months, and on social pages nothing to do with solar. They would install the gear, you'd lease it, and they were responsible for maintenance, replacing stuff when it died. The complaints were that they never replaced anything and you couldn't even get hold of them if there was a problem. Not surprised to hear it is all part of Black Rock, that great saviour according to Saint Dame Jacinda. More on Solar Zero The Herald reported:https://www.nzherald.co.nz/business/solarzero-collapse-government-on-the-hook-for-115m-nicola-willis-seeks-urgent-advice/7SSNT6CFHNHIVDUAO64J5G2QDI/
The Government has $115 million at risk from the collapse of SolarZero.
Finance Minister Nicola Willis said she was seeking urgent advice on the SolarZero situation. She had no further comment.
NZ Green Investment Finance – a “green investment bank” created by the previous Government to fund environmentally-friendly businesses – made a $145m debt facility available to SolarZero, as well as facilitating $220m in credit lines from international private lenders First Sentier Investors, Natixis Investment Managers and Société Générale.
There are scores of investment funds that are looking to invest tens of billions of dollars in green energy firms. If SolarZero couldn’t attract enough investors willing to risk their own money, taxpayers should not have been forced to invest in it.
The husband of one of the GF's friends worked there, they had been saying for a long time the top management was beyond hopeless. The liquidators will be looking to see where this money has disappeared to.
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