Are there any ASX indexes for renewable energy?

What does Wikipedia say?

YES!

But it's a qualified yes. It just gives one:

Altex Australia

run by Bakers Investment Group, who also run a Coal industry index, what?

since 2006

118 Companies

$47B

compared against ASX300

A bit of web surfing and I also come up with:

ACT CleanTech

since 2007

75 companies

$11B

ASX200 + ASX Small ords.

Seems OK, they post a monthly report and have annual charts. Looks like it's a good time to invest - from a peak of around 140 in 2007, the index is now sitting around 50, lower even than during 2008-09 (PDF)

also the Ethical Investor magazine has it's own index

Ethinvest Environmental Share Price index.

since 1996

40 companies.

Sadly this one requires membership and doesn't make it clear what or how the index is created. It's from an interesting web site / magazine, which you might be interested in if you are reading this : Ethical Investor

How hard can it be? Online tools seem pretty good these days, maybe I can make my own. Greg's green-tech index. Let's have a go... if only to learn a bit more about the sharemarket and green companies.