The phrase "boost the capacity" is correct and usable in written English.
You can use it when you're referring to the increasing of something's ability or size. For example, "We need to boost the capacity of our customer service team if we want to be able to take on more clients."
To achieve this aim we will need to significantly boost the capacity of the housebuilding industry".
We could boost the capacity, but we don't want to send the show to the booth" -- TKTS, the discount seller.
Even as the international community works to boost the capacity of the federal government, it must engage with the regions.
They can also boost the capacity of private farmers by training local farmers in sustainable agricultural practices, and helping co-ops develop modern business practices.
Furthermore, technical improvements to boost the capacity of existing spectrum and further auctions in 2007 and 2008 mean the wireless industry will be increasingly competitive.
And state-reconstruction programs have done little more than boost the capacity of the authoritarian central government, and of administrative officials at all levels, to oppress the population.
As well as boosting the capacity of its existing drives, the company also plans to make even smaller ones that can fit inside mobile phones.
Retailers have boosted the capacity of their websites and hired extra drivers and delivery companies in a bid to cope with demand after many were taken by surprise last year.
A Tesla is a more stylish way of displaying environmentalist credentials than a lumpen Toyota Prius and more practical than a Ferrari putting two child seats in the back boosts the capacity to seven passengers.
But working aggressively to limit other drivers of risk (poverty, vulnerable agriculture and water systems) is also a prime imperative, as is boosting the capacity to watch for and recognize warning signs (there's more on that here).
They had not reached a consensus on the introduction of a European financial transaction tax, not come to an agreement on treaty change, nor on the idea of boosting the capacity of the euro bailout fund by allowing the European Central Bank to act as a "lender of last resort".
