[onion2k]

How much would this 3D Solar Power Plant simulator cost if a company needed to pay for it?

I reckon 25 days is a fair estimate. That breaks down to;

1 day to research sun position, azimuth, etc.

2 days to figure out the various bits of maths involved and write code to do the calculations.

4 days to build a working interactive 3D model.

2 days to build the charts and tables.

5 days for a designer to make a great layout, build assets, etc.

6 days to bring everything together in a website that works across different browsers.

3 days for device testing.

2 days to cover meetings, phone calls, etc.

At a rate of $800/day that's $20,000. I'd add a $5,000 (20%) buffer on to that to cover unexpected scope changes.

$25,000 for what appears to be a single page might sound high, but if the company is getting, say, $500,000 of value from it then it's really cheap. I know of agencies that would charge 10* that if they thought the client could afford it.

[crobertsbmw]

That assumes $800 a day. If the OP is a student, whoever is hiring him is probably expecting to pay closer to $200 a day. But they should also probably assume it's going to take a student 4x longer to finish the project (if ever), so it probably comes out to about the same price either way.

[Quenhus]

Yes I'm a student so $200/day sounds great. Though, I'm not even sure that a company could be interested about my project. I was not asking its value in order to sell it, but just to start conceiving how much does a a project cost for a company. Thanks a lot for your reply.

[Quenhus]

Thanks a lot. It looks like a really fair estimate, much more reasonable than what I would be able to provide.

It seems absolutely unbelievable for me that my project costs so much, but it makes me proud of my work.

[onion2k]

Finding clients willing to pay for good work is hard, but if you can do it you can make a really good living. You clearly have the ability to build great stuff; there's a fun career in this web stuff if you fancy it.