some seeing eye wrote:The energy density of gasoline is 50 million Joules per Kg. Lead acid batteries can store about 150 thousand Joules per Kg. That's about a 300x difference by weight.
The money argument is bullshit, go and calculate how many batteries you'd need to equal what a $900 generator will do.
Solar is the future, battery efficiency is improving but conservation and efficiency makes them work. Dinosaur plant fuel is cheap, liquid fuels are easy to transport, we're addicted to inefficiency.
Where's the analysis for using generators on the playa?
+$50 oil and spark plug.$900 generator(10 year life cycle x 10 days/year) +$600 gas=$1,500.
No Phil, they aren't using coal fired, likely using hydro power, hence the big dam east of Las Vegas.Are they using personal, gas-powered generators like the Honda i2000 (whatever the model number is)? No, they're using coal, aren't they?
At least 3 tons and probably over $10-15,000.So much would a battery bank cost (and weigh) that will run an air conditioner, lights, fans, refrigerators, and charge small batteries, etc., for the full week of the run?
much2naughty2 wrote:kman,At least 3 tons and probably over $10-15,000.So much would a battery bank cost (and weigh) that will run an air conditioner, lights, fans, refrigerators, and charge small batteries, etc., for the full week of the run?
phil wrote:> You're the one that started this thread suggesting batteries were
> always better than gas or deiesel generators.
I just re-read my post, and I'm missing where I suggest that. The lead statement by Pablo of treehugger.com is that "you have limited amounts of gasoline," and it's cheaper in the long run to buy batteries.
> Most of the discussions about generators assumes loads for thigs
> like AC units.
I'm seeing more discussions about lighting up LEDs all night and running sound systems. I'm not seeing most discussions about running air conditioning.
Since I'm not saying batteries are always better than generators, another straw man, let's get back to the point: Generators are not always the best choice for power on the playa. Since we're on the playa for a specific time and with planning will know our power needs in advance, batteries may turn out to be a better buy than a generator. In some cases, they will be a better option than a generator.
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