Just cooling, what takes even more energy than heating in colder climates.
Do you know it for sure and from personal experience? Can you compare bills for heating and air conditioning for the same house/apartment?
Green electricity in Poland
Do you know it for sure and from personal experience? Can you compare bills for heating and air conditioning for the same house/apartment?
Its a bit lacking in ambition - By 2020, Poland is expected to have a total installed capacity of up to 12,500 MW,
Today, on windy days, Poland gets 25% energy supply from wind farms.
wysokienapiecie.pl/26583-rekord-produkcji-pradu-z-wiatru-w-cztery-dni-tyle-co-w-miesiac/
johnny reb 48 | 7748
12 Dec 2021 #33
Food for thought on wind energy. (When the wind is blowing)
A two-megawatt windmill is made up of 260 tons of steel that requires 300 tons of iron ore and 170 tons of coking coal., all mined, transported and produced by hydrocarbons.
A windmill could spin until it falls apart and never generate as much energy as invested in building it.
A two-megawatt windmill is made up of 260 tons of steel that requires 300 tons of iron ore and 170 tons of coking coal., all mined, transported and produced by hydrocarbons.
A windmill could spin until it falls apart and never generate as much energy as invested in building it.
Antibs
22 Dec 2021 #34
BS.
Average windturbine gets its cost back in 6 months.
Fullfact.org/online/wind-turbines-energy/
Average windturbine gets its cost back in 6 months.
Fullfact.org/online/wind-turbines-energy/
johnny reb 48 | 7748
22 Dec 2021 #35
If there is wind enough to turn them and even then, they kill birds.
So do cats and there are plenty enough of them.
They're working well here.
And there are still birds too.
Average windturbine gets its cost back in 6 months.
They're working well here.
And there are still birds too.
Wind and solar are a waste of time and money.
The only way to go is nuclear.
The only way to go is nuclear.
FYI, wind and solar contribute 12% of the total in the US. All renewables combined: 20%. That's a lot.
Average windturbine gets its cost back in 6 months.
using data from 2012 for the cost of installing wind power ( about 7 million PLN per 1 MW : - gramwzielone.pl/energia-wiatrowa/3154/ile-kosztuje-budowa-farmy-wiatrowej-w-polsce) and wholesale energy prices for 2019 (in Poland) I calculated that wind power repays the investment after about 3,5 years (assuming it's in constant use with the highest possible output (windfarms cannot work in gale force winds as far as I know)) -
edit: optimal wind velocity for power generation is 15-20 km/h - most of Poland has average wind velocity of 4 km/h - we can safely round the average velocity down (say to 3.5 km/h) because of episodes of winds of higher velocity when wind turbines are halted for safety reasons
johnny reb 48 | 7748
31 Dec 2021 #40
Wind and solar are a waste of time and money.
The only way to go is nuclear.
The only way to go is nuclear.
Germany disagrees with you.
They have decided to shut down their nuclear facilities in favor of Green Energy and Nord Stream 2.
Germany today is shutting down half of the six nuclear plants it still has in operation, a year before the country draws the final curtain on its decades-long use of atomic power.
Not that this a particular smart way if you also want to decrease Carbon emissions, but it is likely going to be much cheaper long-term than using nuclear energy.