"efficiency rate" is a correct and usable phrase in written English.
It refers to the measurement of how well something performs or operates in relation to its intended purpose or goals. Example: The company's efficiency rate has increased by 10% since implementing the new production process.
Three days later, SolarCity announced what it calls the world's most efficient solar PV panel, achieving a higher than 22% efficiency rate.
Murray's serve functioned adequately from a 58percentnt efficiency rate, and he struck 28 clean winners.
Currently available commercial photovoltaic technology converts sunlight to electricity at an efficiency rate of 12percentto14percentcent.
The university can now recover this at an 85%90%% efficiency rate with a purity rate of greater than 99.9%.
But you've only managed to achieve a 10-20% efficiency rate for typical solar cells, haven't you?
The world body does vaccinate its troops, but the researchers found that vaccines alone have a much lower efficiency rate in counteracting the cholera bacterium.
"Before '85, the efficiency rate averaged around 60, which meant 60percentt went into the house and 40 went up the chimney.
First Solar's panels have an average efficiency rate of 11-12% as opposed to 14-15% for the silicon ones.
The company's chief financial officer volunteered that he thought the company was running at an efficiency rate of 89 percent.
In practice, each system must make compromises that lower the efficiency rate to 50 to 70 percent.
No other National Football League quarterback has completed a lower percentage of his passes than Washington's Tony Banks (48.3percentt), no N.F.L. team has fewer first downs (62) and no team has a lower third-down efficiency rate (22.5percentt).
