What’s the efficiency of a Tesla glass tile solar roof?

It depends. We attempt to do the math. Maybe it doesn’t matter.


Job moves: Engie fires CEO, plus Enphase, Sunrun, Sol Systems, Nautilus, Sage Energy

Executive and boardroom moves in solar, storage, project development, cleantech, utilities and venture capital.

Oil and gas giants Shell and Total get serious about solar

Total acquired 50% of India’s Adani Group’s solar portfolio for $510m and Shell is building its first large-scale solar farm, a 120-MW effort in Australia.

New SunPower: Focusing on building the world’s highest efficiency PV modules at Maxeon Solar

In part 2 of our interview, the SunPower brain trust talks about scaling-up its high-efficiency PV technology in a way that it has not been able to do in the past — now that it has cash and a definitive focus.


How to solve Hawaii’s solar and storage problems

“Smart imports” could be the solution Hawaii needs. Two new bills that would allow smart imports are pending this month in Hawaii’s 2020 legislative session.

Generate lands more than $1 billion for renewable infrastructure

Jigar Shah, renewable energy legend, strikes again. Generate added Sunrun CEO Lynn Jurich and NYSERDA’s Richard Kauffman to its board.

Is California trying to kill the community-scale generation market?

The community-scale market segment has been plagued by ongoing policy neglect, and otherwise poor policy choices. Will policymakers heed the track record of demonstrated failure and finally create new programs that address previous problems?


The new SunPower: CEO Tom Werner on disintegrating a PV firm and software eating solar-plus-storage

“It’s what we’ve talked about for many years — it makes sense to produce energy where you use it. And it makes sense that it would be intelligent and easily optimized. The new SunPower will focus exclusively on accomplishing that.”


Hanergy named in class action complaint by ex-employees at Alta Devices

“Hanergy…is not above the rule of law, and this is not China. In abruptly closing the Alta plant, defendants violated the federal and California WARN Acts, which require at least 60 days written notice of termination where a plant is shut down and/or mass layoffs occur.”


Mystery solved? Active Tesla roof tiles come from New York? Passive tiles from China?

All of this guesswork would be unnecessary if Telsa press relations related to the press. And why does Elon Musk insist that the solar glass is made entirely in Buffalo, New York?

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