• Flow-battery (large-scale energy storage) developer Deeya Energy has raised a $15mm Series B round, led by NEA and including existing investors BlueRun, DFJ and DFJ Element.  Some fo the capital will be used to fund development of a factory in India.  VentureBeat and GTM also had write-ups.

• EnerTech Environmental, which is developing plants to capture energy from wastewater sludge, has raised a $42mm second round, led by Citigroup and Masdar, and including Nimes Capital and CNM.

• StreamControl, which offers systems to reduce water loss in municipal water systems, has raised a $250k round of financing from Israel's Shari Arison's investment fund.

• Cleantech investors in the news:  Dutch cleantech venture capital firm Icos Capital has brought on Dinant Veehof as a General Partner...  Brad Barton, formerly of the DOE's EERE program, has joined NGP Energy Technology Partners...  And Yellowstone has launched a second, $50mm fund.

Other news and notes:  Here's a pretty good overview on carbon capture and sequestration (CCS)...  Measurement and verification -- critically important in the carbon offset business...   Nathanael is thinking BIG this year...  An update on biofuels...  An update on green electronics...  Pretty interesting tally (note: pdf) of the biggest R&D spenders in the corporate world (lots of them increasingly focused on cleantech)...  Finally, don't try this at home with your salt shaker.