Kaindlbf
Kaindlbf t1_j9w5pbb wrote
Reply to comment by chopchopped in Building for the future: Andalucian luxury villa to be ‘Spain’s first carbon-zero home’ powered by unique hydrogen system. Running costs for the eco-home are expected to be 90% cheaper than similar new builds by chopchopped
Not a fanboy statement just a fact. This guy has 90kw of solar panels and spent $500,000 to set it up with $400,000 from a government grant. This is not practical or useful for normal citizens.
A normal household with battery + solar panels only really needs a 10-30kw solar system for fully off grid including charging an electric car.
If you get 28 kw of battery storage + 20kw of solar panels it would cost you around $40-50k to install in Australia. In USD that would be around $30,000.
Ohh and then you have maintenance costs for fuel cells and electrolysers and storage tanks etc that obviously aren't free and could end up costing a fair bit while solar panels and batteries last 15-25 years and maintenance free.
This BS "Building the future" on hydrogen is just a waste of government and citizen money and will never be practical for normal households.
Also notice that all hydrogen plans are always based on government funding and can't ever stand on their own business models. Products and pricing were never compelling and even with decades head start fell behind solar+Battery and Evs instantly.
Kaindlbf t1_j9hgp26 wrote
Reply to Building for the future: Andalucian luxury villa to be ‘Spain’s first carbon-zero home’ powered by unique hydrogen system. Running costs for the eco-home are expected to be 90% cheaper than similar new builds by chopchopped
Sigh, again with the pointless usage of hydrogen. This is far less efficient than solar panels and battery storage. Why lose 3x efficiency just to do the hydrogen- fuel cell - electricity conversion when you can just go solar to battery in one shot.
Article title should be renamed to: “How to need 3x more solar panels to power a house with hydrogen storage”.
Kaindlbf t1_iwrsg8l wrote
Reply to comment by Bournvitta2022 in Overhyping hydrogen as a fuel risks endangering net-zero goals by filosoful
It only makes sense in Japan because Toyota lobbied the government for heavy hydrogen subsidies.
It's only competitive if government pays the difference.
Kaindlbf t1_iwpohja wrote
Reply to comment by Bournvitta2022 in Overhyping hydrogen as a fuel risks endangering net-zero goals by filosoful
Except that hydrogen takes 3x times more energy to make than charging a car directly. Also difficult to transport and store compared to just using the grid.
Also vehicles will be much more expensive to refuel and service than pure EV from a fundamental architectural point of view. Dead end tech.
Kaindlbf t1_jdk3w9y wrote
Reply to An ESA advisory committee has recommended Europe should independently develop its own space station when the ISS retires, and develop its own lunar base independently of NASA's Artemis plans. by lughnasadh
how about they develop cheap reusable rockets first before blowing wads of cash on a station