The phrase "are only viable" is correct and usable in written English.
It can be used when discussing options, solutions, or alternatives that are considered practical or feasible under certain conditions.
Example: "In this scenario, the proposed solutions are only viable if we secure additional funding."
Alternatives: "are merely feasible" or "are solely practical".
The recovery should bring some "normalisation of interest rates", and reduce forbearance (as firms who are only viable in a low interest rate environment go to the wall).
The price gap between fossil fuels and clean energy is so large and power plants so capital-intensive that tecapital-intensive thatand carbon captechnologiesrage are onlikeiable economically when solardised.
ONGC, India's largest state-owned energy firm, says some offshore discoveries are only viable at a gas price of $11 per BTU, well above the new price that Reliance will be receiving.
Yet, as these organisations are only viable where ore permits long lasting exploitation, their members represent less than 30% of the workforce.
Since sterility testing methods require 14 days and these cells are only viable for several hours, they are currently administered without the result of this test.
The IEA's report disagreed with claims that renewable energy technologies are only viable through costly subsidies and not able to produce energy reliably to meet demand.
The SDF is only viable because the YPG is its backbone," he said.
The deposits, some of the largest in the world, were only viable for development when natural gas prices surpassed $2.50 per million British thermal units.
And, says Mr Peterside, "if someone comes to me with a project that is only viable because of an import ban, I'm reluctant to finance him.
The deep-sea oil is only viable at today's price "if we make an effort to reduce costs," says Eduardo Braga, the new energy minister.
Therefore, a one-stage process is only viable when the conversion can be kept at 100%.
