First Solar produces thin-film modules capable of creating energy at around $2 per watt, equivalent to 15 cents per kilowatt hour--matching electricity prices in many global markets.

最初的太阳能薄膜模块可产能量为每瓦2美元左右，相当于15美分/千瓦时 - 相当于全球许多市场的电力价格。

youdao

Digital watt-hour meter is the necessary equipment with increasingly wide application while it is necessary realization of quantity traceability.

数字式电能表是必备设备，应用越来越广泛，实现量值溯源是非常有必要的。

youdao

The metering error considers the non linear effect of the voltage coil and current coil in watt hour meter under different order of harmonics and different distortion degree of input waveform.

计量误差考虑了电度表电压线圈和电流线圈在不同的谐波次数以及谐波大小时的非线性效应。

youdao

The Spark's 39 Watt hour battery has both a high-powered USB port for tablets and a standard USB port for phones and other handheld electronics.

ENGADGET: Voltaic Spark Tablet Case powers your pad with the Sun's rays

One watt generates 3.41 BTUs, so each 250-watt device generates 852.50 watts per hour, or 7, 467, 900 BTUs annually.

FORBES: For IT Managers, Going Green Can Save You Some Long Green

The mariner uses a 250 watt free-spinning motor mounted in the front wheel for propulsion and high capacity 36 volt 9 amp hour advanced lithium battery (LiFEPO4) which provide a smooth, powered ride on flat and hilly terrain.

FORBES: Green Gear Test - Folding Electric Bikes