Question: if someone asked you to improve something but you thought it was already good what would you do and why ?

Peter Burgess answered on 10 Nov 2015:

That’s a really good question.
I’d tell them it was good enough.

Fortunately, how good a solar power system needs to be is usually written in the contract when we sell it to a customer. So there is an agreed definition of good enough.

I have certainly found situations where I have seen that we can improve a site, but that the money we would need to spend to get the benefits would be more than the money we would get by improving the performance.
Those kind of decisions about when money is worth spending are one of the harder parts of the work my team does. If it’s something that affects how we design our solar power systems, I tell the design engineering team what I have found so they can apply what I’ve learned on new sites in future.