The rule is to be clear about pricing when it works in your advantage and to obfuscate otherwise.
you have to schedule a consultation if you want prices.
- The state of the roof (does it need reinforcing? will the installers need scaffolding?) - The complexity of the installation (lots of little roof sections with earth tiles and 2 or 3 transformers? Or a plain and simple one-transformer south facing asphalt roof?) - Does the crew need to drive 5h from headquarters? Or just 1h? - A 3kW installation may be worthwhile in some locations but not in others.
And finally since solar city depends on the performance of the panels (which they sell as debt), they must ensure that your house will be a good candidate. If it's not, they don't want you as a customer.
...actually, the more I think about it, this may be a business idea in itself, for the poor suckers who don't afford a solitary launch!
It's different for software that actually needs integration of some sort (SAP, most of the IBM portfolio, …) but SaaS startups doing this shit are just deluding themselves.
Is that millitonnes, more commonly known as kilograms?
That's to illustrate the difference between an imperial ton, which is 2000 lbs (or ~907kg).
Or (unfortunately not) better known as one megagram.