Originally posted by: Eeezee
Originally posted by: Cogman
Originally posted by: eits
Originally posted by: Mo0o
Unless we dont come up with good alternative fuel systems by the time it runs out
the technology is all already there... i believe that this administration has been dragging it's feet on alternative fueling ever since 2001 when high horsepower hydrogen-powered cars by bmw were showcased in the u.s. because it was put in power by the big oil companies.
Tell us, oh mighty one, what is the alternative? solar? Wind? Ocean? Ethanol? Hydro? Hydrogen?
Let us dive into some alternatives.
Solar, expensive, dirty, and requires rare minerals, in some instances it doesn't produce more energy then the cost to manufacture. A long standing public myth deems this fuel source as "Clean" because it has low operating costs. This myth fails to take into account disposal and manufacturing which more then destroys this as being a "Clean" source. Lets not forget that it only operates during the day, in which case expensive batteries and converters (DC to AC) would be needed to supply the world with power at night.
What you know about solar power was true 20 years ago. Times have changed.
Solar power does NOT require photovoltaic cells for generation. This is but one option. A more efficient (cost-effective) method is to essentially use mirrors to boil water, which runs a turbine. No rare materials are required (unless you consider mirrors to be particularly rare). Allow the steam chamber to be a nanotube coated surfaces (environmentally friendly) for maximum efficiency.
Solar power does NOT require batteries for supplying energy at night. In the regions most ripe for solar power, cloudy days are rare, so there's an automatic plus. These regions also happen to be home to some of the largest abandoned mine shafts in the world. Using molten salt (ie filling the unused shafts) as an energy storage medium is a well-understood cost-effective process.
HVDC transmission lines are an effective, nearly lossless (less lossy than standard AC lines) method for transferring the power from place to place, and the AC converters are actually a lot cheaper than you'd think.
I suggest you actually read up on modern solar power. Newscientist and Scientific American each did a series of very informative articles regarding the latest advancements in the last 5-10 years. In 50 years the US could be running on over 90% solar power for its electricity if we start laying down the infrastructure and investment NOW. The initial cost is high, but over a long time it will be cheaper to run on solar power than coal (which has been seeing a price spike in recent years).
Today, solar is just slightly more expensive per kW/hr than nuclear, which is only slightly more expensive than coal (factors of two). Coal is going up in price. Nuclear is a PR nightmare despite being safe and cost-effective, but its price is pretty much Solar is going DOWN in price every year as more research is conducted.