The fuel is hence utilizable as a petroleum-substitute energy.

You have to have provision to replace your energy.

More importantly, however, are the personal financial implications of deciding to purchase an alternative-energy vehicle.

There are also the personal financial implications of deciding to purchase an alternative-energy vehicle.

Despite the development of renewable energies (including hydroelectricity), gas is, in Asia, the preferred substitute for coal.

Areas of interest include divergent energy sources: alternative, chemical, electrical, gas, mining, metals, oil & gas, and utilities.

In spite of its first use for military needs, the nuclear became a substitution energy, especially for the electric power production.