However, a base station has grid power and can use power-hungry, but very flexible software radios.

Developing countries where many villages are often more than five kilometers away from grid power have begun using photovoltaics.

The truck does have a 5.5KW gasoline generator which can run continuously for over 3 days if grid power is not available.

Privately owned generators are especially popular in areas where grid power is undependable or unavailable.

A 2012 study shows photovoltaics to be cheaper than grid power for small systems in all of New Zealand.

The 7 April aftershock caused the loss of grid power again until the next day.

Recharging all those green batteries uses dirty grid power.

But it has the same amount of grid power as Bradford, according to the Economist.

Powering your home using solar energy does require more maintenance than using the regular old grid power.

Besides grid power, a 2 cylinder diesel engine provided internal power.