L'Emmerdeur wrote:Seth wrote:Er, the only problem is wind can never replace coal or gas because it's not reliable. And it's ugly. And it takes an enormous investment in land that cannot be used for anything else.
And the most compelling reason is because it can never supply the necessary amount of electricity to keep a technological society running without festooning every square foot of the country with giant, ugly towers.
Wind is only one of the energy sources that will help with the inevitable replacement of fossil fuels. The price of solar is
dropping,
Not really. The short-term cost of panels has dropped because the Chinese are dumping solar panels onto the world market but that won't last. While solar is far less intrusive than wind farms it suffers from the same failure that wind does: it's cyclical and the energy cannot be stored for use when demand is high. Oil and gas, by the way, are nothing more than stored solar energy, or had that fact escaped you?
Not once the Chinese wipe out panel production elsewhere and then it either jacks the prices or simply stops exporting panels in order to wage economic warfare, something it has a long, long history of doing.
By the way, you misread this citation, which says that the PRICE of solar energy, which is to say the price that is paid to the individual who owns the solar system, is in decline, not the COST of building and maintaining a system:
The continued decline comes even as the price of photovoltaic modules – commonly known as solar panels – which represent one of the highest single equipment costs in solar energy systems, have remained relatively steady since 2012.
This fact makes it far less economically feasible to spend the huge initial investment required to put in a solar system for homeowners or anyone else. The up-front costs for a solar system are huge, particularly for the individual homeowner, and that investment cannot be justified UNLESS excess solar-generated electricity can be sold back to the grid at a price that amortizes the capital costs involved in a reasonable amount of time. When the price you get for selling back electricity to help pay for the system drops it makes it a waste of money to install it in the first place and you're better off not doing so and continuing to buy retail power from the grid. That's why "net metering" is such a big deal. Power companies hate net metering because in net metering the homeowner "sells" excess capacity back to the power company at the same retail rate that he buys grid power from the power company. Power companies naturally don't want to buy what they produce at wholesale prices at a retail price, much less do they want their customers to not only be able to avoid buying THEIR power at retail rates (which funds their staying in business) but to also force the power company to pay more for the customer's excess electricity that it costs them to produce it themselves.
The ONLY way individual home-based or commercial solar is economically feasible today is due primarily to two factors, both of which are government mandates that affect the profitability of the power companies: net metering and capital-cost subsidies to the homeowner. And that's not economically sustainable and therefore solar is out as a permanent "renewable" energy source.
The work continues on developing
nuclear fusion as a power source as well.
Yeah, fusion is cool and I'm all for it, but it's not a "renewable" energy source because technically it consumes the matter used as fuel, so it doesn't count. But I fully support fusion power plants.
Fossil fuel will be with us for a while yet, but it's on its way out, whether you ever acknowledge that or not.
It's going to be with us for hundreds of years at a minimum and probably thousands because even when not used to fuel fixed electrical generation it's the most energy-dense portable fuel for vehicles known to man...short of "Mr. Fusion" converters in your Delorean. But just try to find a damned flux capacitor these days...
So, since fossil fuels ARE going to be with us for generations there's no need to cease using them immediately...or ever...until they run out.
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