jump to navigation

Tesla Semi and the price of batteries November 26, 2017

Posted by Maury Markowitz in Uncategorized.
Tags: ,



Even their trucks are sexy.

It was surprising enough that Tesla announced they were making a semi, but I think what really surprised everyone was the cost; the 300-mile range version is expected to run $150,000, while the long range 500-mile version is $180,000. They compare this to a similar class Diesel at $120,000.

This is interesting enough on its own, but now that we have the numbers, we can play a little game with them…


Shocked! Shocked to hear the EIA underestimates renewables! October 22, 2017

Posted by Maury Markowitz in power grid.
Tags: , ,
1 comment so far

When I was still on the front lines of the PV market, we would look forward to receiving the latest US Energy Information Administration’s (EIA) reports. Invariably they predicted a price for PV that was much higher than what we were shipping it out at retail, and every year we managed to ship a non-insignificant portion of what they said the entire US’s installations would be.



Error? What error?

Everyone knew their predictions were way off, but as the official mouthpiece of the industry it was hard to argue that they weren’t the “official numbers”. Well no longer; the Natural Resources Defense Council had Statista review the EIA’s numbers, and it makes me laugh all over again.



Tesla nails solar roofs October 29, 2016

Posted by Maury Markowitz in solar.

Yes, those are solar shingles.

On 28 October, Tesla held a press event announcing their long-rumored solar roofing product.

I have to say, I’m floored. This is leaps and bounds ahead of anything I’ve seen before. They’re not just acceptable looking, they’re downright beautiful.


And we’re down under $1… July 22, 2016

Posted by Maury Markowitz in Uncategorized.
add a comment

It was bound to happen sooner or later, but there’s not a single person on the planet that would have seriously predicted I’d be posting this in 2016:

Utility scale solar in the US is currently installing for under $1/Wp. In Europe it’s expected to be 80 to 85 cents/Wp in the next 12 to 18 months.

Monosilicon panels, the expensive ones, are going for 53 cents/W today, and the expectation is that they’ll be 50 cents/W by the end of the year.

Power purchase agreements are going in at under 5 cents/kWh, and are signing at 4 cents for projects coming online in 2017.

So that’s basically that.

Another PV ERoEI debacle May 17, 2016

Posted by Maury Markowitz in balonium, solar.
Tags: ,

Your face should have this expression when you read Ferroni and Hopkirk’s paper.

recent report by Ferroni and Hopkirk explores the energy balance of solar power, and concludes that using PV is energy negative. That is, building PV requires more energy than the panel will produce over its lifetime.

Claims like these pop up from time to time, and normally end up being based on definitional tricks on the part of the authors. This example is no different in that respect, but in this case they also add a liberal dose of bad data.

The paper is so filled with errors and omissions that’s it’s almost breathtaking. Once again, dear reader, it’s time for the deep dive.


Electric cars and particulate pollution May 15, 2016

Posted by Maury Markowitz in Uncategorized.
add a comment

You think it’s bad now? It is.

The latest bit of news-mongering in the electric car world hit the press a few days ago, a new report noting that emissions from EVs are no better, and perhaps worse, than from normal cars. And because of that, they will cause just as much pollution and related health problems.

Well, at least that’s the way 3rd party news outlets reported it. If this is starting to sound familiar, that’s because it is. The original paper’s conclusions are quite a bit at odds with the conclusions being suggested by the news blogs.