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Fuenkli

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Fuenkli last won the day on April 17 2018

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  1. it is not only inefficient it is also incredibly expensive to generate, store and transport hydrogen. As much as the oil and gas lobby tries to push the politicians at the moment into distributing power using H2, i think it will never happen. It is much cheaper to do that with electricity. Sure we need hydrogen for industrial and (some) transport needs but that will be generated at the site it is required. I also think that the need to store renewable energy will not be as big as some politicians want us to believe at the moment. A well developed worldwide (DC) electricity grid will take care
  2. One other thing to consider is, that a single phase system will severely restrict the maximum possible feed in power. If we follow the rest of the world (which i sincerely hope so), it will soon be possible and viable to completely cover our roofs with PV and export the surplus to the grid .
  3. this is the problem with an island system. It has to cater for the maximum power consumption of your house. My advice is to rather go grid tied. You can size the inverter for the average consumption and the grid will absorb the peaks.
  4. does the CoCT still require connections to remain net consumers over the year or are you now permitted to feed in more than what you consume
  5. i wonder what the real reason was why the CoCT has changed your existing prepaid meter . I am not aware of any one way prepaid meters who credit you (spinning backward) when you feed in.
  6. yes. As long as it is a prepaid meter. And as @Tariqmentioned, the CoCT exchanges an old spinning with a prepaid meter free of charge when you register your system.
  7. not necessarily. We have an option in the CoCT to remain on the normal tariffs and fees with a grid tie system if we agree not to feed in.
  8. it was reported by @Weasel (see below) (from post "Goodwe vs others") The goodwe es is a brilliant machine. They fall a little short on software and they have had a fair share of firmware bugs. Build quality and component selection im sorry to say surpasses victron by quite a bit. Before im shot at dawn im a massive victron fanboy and to someone like me blue offers the best all round. But credit where its due. The hardware issues guys have with them are almost assuredly because of improper installation, Oversizing backup or high inductive loads. Bonding does happen, guy
  9. it works (at least on my inverter. It is the old model with the serial number starting with a 3). The unlabeled (third) connection on the "back up" output is indeed bridging to neutral in islanding mode .
  10. not only. I am sure that age plays an important role as well.
  11. I propose you contact Dave Havenga (Goodwe rep Southern Africa) [email protected]
  12. They look similar to the Shoto batteries. Are they all coming from the same company?
  13. i don't think this is necessary. The outlets are positioned sufficiently high above the bottom. My tanks have been in operation for 5 years and i never had a problem with dirty water. Last year i checked and cleaned the first tank the rain water enters the system (the tanks are connected in series). There was only about 5mm of sediment at the bottom. The other (downstream) tanks did not even need cleaning. I also do not have filters on the in and outlets (except leaf strainers on the supply pipes).
  14. when you separate the plumbing it is a good idea to do it with a change over system. This will allow you to quickly switch back to municipality supply if there is a problem with your rainwater system.
  15. That is a big advantage . i have a similar set up. I positioned a small (2500 liter) tank at the top of the property. The tank is used to gravity feed the rainwater circuit of the house and garden. With this set up you only have to pump water once in a while (this is cheaper and works well with a PV system).
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