I would add to RonegraT's feedback with the following
Step 0 : Do keyword discovery - Kind out what keywords are optimal for your website
Step 1 : Add content - Content needs to solve users problems. Lots of problems to solve in the go green niche!
Step 2 : Making sure i get visitors (submit it to google, ping it)
Step 3 : Making links to the site (best is from related nisches) -
Step 3.1: When making links, make sure you develop a natural link profile
Step 4 : Analyze the trafic, what are they searching for, how could you earn from that - Review affiliate sites for possible products... Also when you type in the keywords, review the Paid ads that are in google and those are the products people may want.
Step 5 : Make searches on internet, after ads revelant to your nische or just get a Adsense account and try it out
There are many other steps, but these are an ok start.