If your goal is to provide electricity, you would ship in generators and diesel (, gas, etc). Batteries are useful because you can store the energy being gener

If your goal is to provide electricity, you would ship in generators and diesel (, gas, etc). Batteries are useful because you can store the energy being generated onsite, but their energy to weight ratio is an order of magnitude smaller than combustible fuels. http://en.wikipedia.org/wiki/Energy_density http://en.wikipedia.org/wiki/Energy_density