Thanks PRR.
Rex, is it all diesel piston engines? I suppose for small scale that works. One day I drove by the power plant on south Maui and the giant roll-up door was open exposing a generator inside. It was a huge jet engine! Of course made by General Electric, but I had not imagined our power coming from a massive APU. Across the island was another plant that burned "begasse" which is sugar cane scrap. I don't know how that one worked - maybe boilers and steam.
Big gas turbines are very common here in Massachusetts, most coops with their own supplemental generator plants use them. The town I lived in two decades ago was a member of a local electric co-op that had 11 gas turbines. I got to see them - they used them only during peak demand hours to avoid having to pay excessive fees for spot market power. In one major black out they ran about 10 of them to keep the two towns in the co-op lit.
There is a really large gas turbine power plant in the next town over, this particular plant burns natural gas, the one in my old town I believe burned kerosene, LNG/gas or diesel fuel as available.
With all of the goofy fees included I think we typically pay about $0.14kWh.
I wasn't aware the standard had been dropped to 230V but doing a bit of googling it seems that the standard for inverters is AS/NZS4777 and from what I have looked at the max voltage is 255V (and in fact some diagrams show this means a set point of 257V on the inverter)... So I think at 252V it is fine in my case that is if the incoming grid voltage reaches this then the inverter shuts down. see http://www.ipsconnect.org/wp-content/uploads/2017/12/IPS-Connect-2017-Overview-of-ASNZS4777-.pdf page 11.
I haven't checked the voltage for a number of years. It may well be lower now.
Tony.
In Europe it used to be nominal 220V for the mainland and 240V for the UK but then it became 230V for everybody.
The truth is nothing really changed ie Germany did not start supplying a 10V higher voltage and the UK did not drop theirs. All that happened is that they widened the allowable range for everybody so both voltages were covered.
The truth is nothing really changed ie Germany did not start supplying a 10V higher voltage and the UK did not drop theirs. All that happened is that they widened the allowable range for everybody so both voltages were covered.
The same for Ukraine. We have new standard, where they say "The nominal voltage is 230 VAC (but it can be 220 VAC in transition)", and I think this 'transition' will last forever for many old distribution transformer 10/0,4 kV substations.
The electricity price is about 0.06$ for people here now. The price is controlled by the government commitee, and it is the same all over the country (at least now). But it has a tendency to substantial growth. The price for a business is 1.5-2.0 times higher. So, the business pays a market price (and a bit higher) and people pay lower than the market price.
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