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As the prices have come down, the financial incentive for installing PV on your roof has become more-and-more compelling. Yet many people still resist. Some have very good reasons not to install PV such as "I can't", or "I'm moving next month". But I've heard some real doozies. Here are a...

DaveEV introduced this topic in the MTBF thread, but since I received a snail mail from Enphase about this program, I thought it should have its own thread. The letter I received was dated March 8, 2019 and pointed me to the following URL: enphase.com/upgrade The letter says "Availability is...

What appears to be a "Wardenclyffe Tower" was erected in Texas about a year and a half ago in the small town of Milford. It has apparently been erected by a startup company called Viziv Technologies. They claim that they are applying the 1907 work of Jonathan Zenneck by creating a tower which...

California becomes the first state to require solar on new homes: It's a good idea. I've wanted to see this for a long time. I'm sure there will be instances where the production will not be very good, but hopefully those cases will be limited in CA.

This prediction seems much more likely than the one from McKinsey that imagines that adding EVs does not increase the peak load: UK Grid Might Be Strained By EV Influx Come 2030 This is a very big deal in the UK where the amount of dispatchable electricity available is extremely marginal and...

Electrek reports on a new type of electric machine being developed for EVs called an axial-flux motor: I am not familiar with axial-flux machines, but these look very interesting! The manufacturer has a white paper which describes the technology. Here's an image from the manufacturer's...

Since I was so terrible at this last month, let's do this again! I'll start: U.S.: 2500 Worldwide: 12,000

We've recently joined the 21st century and purchased a Smart TV. We didn't get an Android TV unit, but instead we purchased one with VEWD (formerly OperaTV). The built-in Apps are decent (VUDU's streaming works better than Netflix or YouTube, but they all work fine), but the other available...

CleanTechnica has this article about the TRIPL Urban Cargo, which is a three-wheel EV for making small deliveries in urban areas. It looks like it could be quite useful and therefore quite popular. Here is the main website for the product. At least I *think* it is, or will be, a product. Not...

I have quite a few M190 inverters which have been in storage as cold spares for over a year. I recently put some of these inverters back into service, but what I found is that they did not work until they could talk to an Envoy. In a discussion with pclifton regarding the incident, he...

I know this sounds like a support issue, but I suspect it is something else entirely. Please let me explain. Once I learned that Enphase was converting Envoys from 5-minute reporting to 15-minute reporting, I decided to restrict the access my Envoys have to connect to the "Mother Ship" to only...

Mazda has teamed up with ELIIY and Ube to develop 12-V Li-ion batteries to replace their lead-acid counterparts: If ELIIY sounds familiar to some here, it is because they make the extremely-safe, 12,000-cycle Li-ion battery used in the Enphase AC Battery: http://www.youtube.com/watch?v=nUg7cDbRBo0

Let's try to guess US and worldwide LEAF sales numbers for March 2018. I'll go first: US: 2500 WW: 8500

Eviation Aircraft website InsideEVs has an article about Eviation, which is working to build a battery-electric commuter plane: Specifications (as of February 27, 2018): - Seats: 9 passengers plus 2 crew members - Cabin: Unpressurized - Service ceiling: 12,000 ft. - Cruise altitude: 10,000...

This article at CleanTechnica discusses a new global location system. The video makes it sound wonderful, but when I downloaded the app and tried it, it shows me at my neighbor's house approximately 200 meters from here. Since I've never had any application fail to show my location within a...

So far, the BEV market has been dominated by two types of electric machines: induction machines and permanent-magnet synchronous machines. Induction machines have the benefits of being more powerful and not requiring any rare-Earth materials since they do not have magnets. Permanent-magnet...

When I read articles about EVs, I find that I'm often saying to myself things like, "That's only happening because of Tesla," or , "That's just a copy of a Tesla." Since it happened twice today, I thought I would start a thread where we could record things which appear to be Tesla-influenced in...

A Nissan powertrain executive has stated that Nissan would launch 4 new BEVs in the next 5 years while Inifinity would launch 2: Simply put, BEVs are becoming a larger-and-larger part of major automakers' portfolios. The Genie is now fully out of the bottle.

This "auction" is really a PSA explaining what is wrong with the Enecsys inverters which are being sold on eBay: The "auction" also includes pictures of a disassembled Enecsys inverter showing a massive amount of burning of the internal components. (Unlike Enphase inverters, these inverters are...

I have a broad range of Enphase M-series inverters in my system ranging from M190s which were built in 2010 to M250-72s built in 2017. I have taken "measures" to try to prevent Enphase from changing the recording intervals for these inverters from five minutes to 15 minutes. While looking at...