Commercial Solar Leads

Hey everyone. I run some Meta Ads very successfully for the smaller UK arm of a large European solar farm company. it's an odd situation as they have quite small budgets.

They have approached me to run LinkedIn ads for them, but looking for different customers.

They want UK companies who have very large power consumption like cement companies, data centers, large manufacturing companies etc.

I doubt they will spend more than £1000 per month on ads, and I'm getting the feeling as a complete novice this is going to be a waste of money.

All suggestions most welcome.

PS I have a very good cold email infrastructure in place too, that I do not use for this client currently.