Meanings of as cost-efficient in английском

Despite landowners offering alternative land, the government says none would be as cost-efficient as Mabira.

Ghosn said on Thursday that unlike earlier electric cars, current battery technology is more advanced, making electric cars as cost-efficient as gasoline-powered cars.

But the comment option is still almost as cost-efficient as that shrewd old publisher realised, and consequently is more in demand than ever.