How should a person with not much money invest on green/eco friendly related industries?

Professional, fact based answers, please.

Green/Environmentally friendly investing is a subset of an investment philosophy called Socially Responsible Investing (SRI), which is a form of investing based on ethical considerations.

A common way that individuals can get a fairly large assortment of SRI companies without spending large amounts of money is to purchase units of mutual funds and/or exchange traded funds that mimic SRI stock indexes or represent a handful of companies that are considered to eco friendly. In either case, an individual can purchase as little as one unit or share and still have an environmentally friendly investment. Plus, you can always purchase more shares/units afterwards.

For example, the Domini 400 Social Index is stock index based on the S&P 500, but only contains companies that operate on favorable environmental and other SRI related basis. While individuals cannot directly invest in this index, they can buy exchange traded funds (such as the iShares KLD 400 Social Index Fund) and mutual funds (such as the Green Century Equity Fund) that track the index.

Hi mate,
Where-ever you live you may have seen many adverts from car manufacturers, all the way to energy suppliers saying they are going "green". Personal recommendation is to invest (Stocks) EDF energy are probably the greenest you can get. There are many indications that they will rise. They are in a market where british gas dominates. They are the biggest alternative in ECO friendly fuels (UK). Many people are also under the belief that "ECO" friendly is the future. They have graphing support at E1 & E2 (in terms of previous gains and demand). If you are a knowledged trader I would say wait fo E3 support, otherwise do some more research until you are convinced in you own mind. Then go for an investment.

I dont have alot of money, (500$) that i've invested into a company with stock ticker ESLR although there stock is currently down i think they have growth potential. Listening to CNBC also helps. Another good way to look for ECO stocks is to check out the companies that are from China. They are cheap labor and currently they are one of the top 5 manufacturers of solar equip. So your return should be good. Sunpower is one of the chinese companies and Suntech but i dont have anyting in them. good luck. please let me know if you find something better than that