Energy is the lifeblood of the economy and the British Thermal Unit (BTU) is the standard measure for the energy we use to heat our homes, travel to work, run our factories, power communications, produce foods, and power our computers. Information technology (IT) plays an ever increasing role relating to energy, whether it is helping to locate, develop, produce, transport, or even consume energy.
Current BTU's
According to the Energy Information Administration, energy from all renewable sources represented only about 9% of the nearly 100 quadrillion btu's consumed in the U.S. in 2006 (the latest year for which we have statistics). Add another 8% for nuclear and that leaves 83% from fossil fuel sources. Not all fossil fuels impact the environment equally. CO2 emissions for direct consumption by each of the major sources are:
Natural Gas ~118 Lbs per million BTU
Fuel Oil ~190 Lbs. per million BTU
Coal ~210 Lbs. per million BTU
And consuming this energy in the form of electricity generated from fossil fuels creates substantially more CO2 due to conversion and transmission inefficiencies.
Electricity from natural gas = ~388 Lbs. per million BTU
Electricity from oil = ~628 Lbs. per million BTU
Electricity from coal = ~694 Lbs. per million BTU
One problem facing the energy industry is that the cleaner fuels are ever more difficult to locate and produce. Information technology in the form of seismic analysis, visualization, modeling and simulation play a critical role in finding the deeper pockets of cleaner natural gas. And information technology is instrumental to economically producing the "alternative fossil fuels" such as oil shale and tar sands. Because fossil fuel will play a key role in powering the world, information technology plays a key role in bringing relatively cleaner BTU's to the market.
Better BTU's
Expansion beyond the 9% of energy from renewable sources and 8% from nuclear must take place if we are to wean ourselves from fossil fuels. Biofuels generated from organic matter will play a key role in our mobile energy picture. Electricity from wind, solar, surf, tides, geothermal, hydro and other renewable sources will all play an expanded role in our energy future. These renewable sources also require copious amounts of information technology for research and development, modeling and simulation, citing, production management and integration. IT for "Better BTU's" will accelerate our use of renewable energy and power our path to ecologically sound energy independence.
Best BTU's
The best BTU is the one you never use. Energy loss due to conversion inefficiency, heat and leakage can consume up to 90 percent of the total energy within the resource. For a typical industrial pumping system the losses at each stage of the process goes like this:
Power plant losses - 70%
Transmission and distribution losses - 9%
Motor losses - 10%
Drivetrain losses 2%
Pump losses 25%
Throttle losses 33%
Pipe losses 20%
In this model (similar to what it takes to cool a data center) 100 units of fuel energy in results in 9.5 units of energy out. So when you think backward from downstream to upstream in a typical process, saving one unit of energy in the data centre may result in eliminating 10 units of resource energy. Understanding a business's application portfolio from a number of dimensions (value, cost, power consumed) will be a critical factor in ensuring that energy is used effectively.