The much-anticipated Landis+Gyr sale finally happened last week as Toshiba emerged as the buyer. ABB, following the acquisition of Mincom last week, also made another acquisition in the smart grid sector.

North American cleantech community has experienced a loud week in terms of VC activities. Prominent names like Fisker, Bridgelux and Hara occupied the headlines. In other news, Solazyme upped its IPO fundraising projection to $184 million, adding to the anticipation created by the biofuel company when it first announced IPO plan earlier this year.

It has been quite a lively week in worldwide cleantech community. Numerous North American companies received funding, European cleantech companies and investors celebrated a successful Cleantech Forum in Amsterdam, and Asia saw significant amount of funding committed to cleantech sectors for the near future.

Although Asia has been somewhat quiet on cleantech investment and M&A front, all the fund announcements still made it an outstanding week for cleantech in Asia. Five out of the six fund-related announcements were all either Asia-based or Asia-focused.

Swiss electric equipment company ABB continued its recent wave of acquisitions by acquiring mining software company Mincom, broadening its operational technology offerings. This move followed ABB’s recent acquisition of Novatec Solar, a German concentrated solar thermal technology provider.

Among all the venture and M&A deals of this week, the one company that stands out would be General Fusion, the nuclear fusion technology developer. Though this seems like a dubious time for a nuclear technology company to be funded because of what happened in Japan lately, General Fusion claims that its fusion technology is safer, cleaner and even cheaper than the fission-based technologies used in most plants today.

This week’s top highlight belongs to French energy conglomerate Total, which made a giant acquisition of American solar company SunPower for more than $1 billion. Total has been quite active lately in the solar sector, having completed the takeover of French solar company Tenesol SA just two weeks ago.

British companies seemed to be gaining some momentum with the Royal Wedding. Enecsys, in particular, completed the largest venture deal in Europe this year.

This week’s highlight features several interesting venture deals and a few corporate transactions in the M&A front. Fallbrook Technologies’ change of plan in IPO also grabbed some attention.

After months of speculation, California-based solar thermal technology developer BrightSource Energy finally filed for an initial public offering, expecting to raise $250m. This news represents an exclamation mark on BrightSource’s eventful fundraising journey after it raised $201m at the end of last quarter.