There are real stirrings of hope in the economics of Greentech.  We covered the big month in VC here.  We looked at A123's potential home-run IPO here.  Factor in stimulus funding and loan guarantees and there's cause for hope.  We could use some good signs in project finance and new construction – but that's coming.

And here's one more reason to be cheerful:

July Greentech M&A

The last few months of M&A in Greentech have been limited to "undisclosed" deals.  Undisclosed is usually a code word for sad fire-sale acquisitions with very few winners.  But July's M&A list actually includes some disclosed big ticket acquisitons. 

• Germany1, a SPAC, bought AEG's inverter business for $752 million
• SAIC, the US spook house, bought R.W. Beck, an energy consultancy for $155 million

With A123 and some other Greentech IPOs looming (Tesla? Bloom? Solyndra? Serious Materials?) it's not out of the question for Greentech's denizens to be optimisitic.  The next few quarters could just be the start of the greentech boom.