Power is what makes just about everything work. Producing it on a large scale requires lots of fuel, such as coal, oil and natural gas. If there's a shortage of any of those fuels...
But you can produce your own energy, in ways that are sustainable, economic (at least in the long run), and most importantly, available.
How to Live Without Electricity - and Like it
Live off the grid but still have power, water, heating, and refrigerated food. [book]
Power with Nature: Solar and Wind Energy Demystified
Highly-recommended book on solar, wind, micro-hydro, heating house and water and pumping water. [book]
An "electricity usage monitor" that measures the amount of electricity consumed by household appliances—even when they're not actually being used but are simply plugged in. A great way to see where you can reduce your electricity consumption. [electronics]
Cooling and Refrigeration You don't necessarily need a refrigerator or freezer to keep foods cool long-term.
A Yahoo discussion group on energy-efficient home refrigeration, including traditional refrigerators as well as root cellars, cooling cabinets, brine solutions and much more.
Geoexchange / Geothermal
No, it's not just using heat from geysers. It's using the internal temperature of the earth—anywhere.
What is Geoexchange Heating and Cooling System?
A brief introduction
Earth Energy Systems
Private company constructing geoexchange systems.
Geothermal heat pump consortium
Information from the Oregon Institute of Technology
Introduction to Geothermal Direct Use
From the U.S. government's National Renewable Energy Laboratory (NREL)
Introduction to Geothermal Heat Pumps
From the NREL
And then there's the original source of power. The one many of us try to avoid, unless absolutely necessary.
Generating electricity the old-fashioned way.
You can use the natural flow of nearby water to produce your own electrical power.
All About Hydraulic Ram Pumps
Book on the device that can pump water from a flowing source of water to a point higher than that source using the force of gravity rather than power. [book]
Micro-Hydro Power Systems
From the U.S. Department of Energy. Includes How a Microhydropower system works.
Network promoting small hydro systems up to 5kW. Currently very popular in Vietnam.
Not just when the sun shines brightly, though it helps.
The pioneer in home solar energy.
Real Goods Solar Living Sourcebook
The classic information catalog. [book]
Small Solar Electric Systems
From the U.S. Department of Energy. Includes How small solar electric systems work.
Solar Electric House, The
Energy for the environmentally responsive, energy-independent home [book]
If the wind blows in your area, you've got power.
American Wind Energy Association
Manufacturer of small wind turbines
Scoraig Wind Electric
Home page for Hugh Piggott, author of How to Build a Wind Turbine
Small Wind Electric Systems
From the U.S. Department of Energy. Includes How a small wind electric system works.
Wind Energy Basics
A guide to small and micro wind systems. From Real Goods. [book]
Wind Power, Revised Edition
Renewable energy for home, farm, and business [book]
By someone who relies on wind power for his own energy [book]