The paper and paperboard industry is quite energy and capital intensive.

We do not need to be energy intensive to be technically advanced.

As a result it is less energy intensive, which means that a witch can do more than a technically equally powerful wizard.

Because of the multiple stages involved this technique is considered more energy intensive and time consuming.

The continuous casting method is much less energy intensive and has become the preferred process.

I'm not sure that one will work but it's less energy intensive than the other way.

Treating air is energy intensive, so you can improve efficiency by:

Waiting until we have a drought and then abstracting water from a river by pumping is much more energy intensive.

Bio techniques, when they work, are usually cheaper, less energy intensive.

The process is more energy intensive than conventional oil and thus more expensive.