Here’s how the Net Present Values of each project stack up
This is how quickly you’ll break even with each of these projects
And this is how much you’d had to charge for water if you just wanted to break even
You might be wondering what the upfront cost would be to get any one of these projects going
Now you know how much money you need, but what does that mean for your solar array? For each project, you’ll need this many installed kW of solar
And of course you’ll also need some batteries to help tide you over when the sun isn’t shining. Here’s how big that system will have to be: