Category Archives: engineering
Earth Day 2019: So how do people transition to the new energy economy?
I’ve been pretty hard on the Green New Deal. That’s partly because its proponents don’t seem to see that a transition to a new zero Carbon energy economy is inevitable. It’s opponents don’t see that either. It may not come … Continue reading
So, y’say you want a Green New Deal …
There isn’t a lot known about the Green New Deal or “GND”. Its proponents are certainly making the rounds, but it is light on specifics, heavy on urgency, heavily coupled with advancing jobs and justice, racial, climate, and environmental. As … Continue reading
October 2013 retrospective … Karl Ragabo on ‘Talk Solar’ podcast, regarding value of solar generation
In October of 2013, Karl Ragabo was interviewed on the Talk Solar podcast from Beth Bond of Decatur, GA. This was shortly after the first version of the Value of Solar report was issued by IREC. Listen to it below: … Continue reading
Still a climate hawk, and appreciate all my climate friends: To the climate deniers, the greenwashers, the liberal environmental opportunists, and the environmental purists who will never compromise …
“Not ready to make nice” (Dixie Chicks) I stick by my friends in these hard times: Tamino’s community The Azimuth Project Woods Hole Oceanographic Institution The American Statistical Association The International Society for Bayesian Analysis Losing Earth: The decade we … Continue reading
Welcome to snowy New England … Bad place for solar PV, right?
And this is ISO-NE, who, as little as three years back were highly sceptical anything other than additional natural gas generation could supply the ever increasing electrical power needs of the region, particularly with the withdrawal of generation from oil, … Continue reading
“About” section of this blog has been revised, and rules of commenting made more prominent
See the About section of this blog for a revision in the blog’s description and rules governing commenting made more explicit and prominent. In fact, I have copied these at the bottom of this post. The heading of the blog … Continue reading
Series, symmetrized Normalized Compressed Divergences and their logit transforms
(Major update on 11th January 2019. Minor update on 16th January 2019.) On comparing things The idea of a calculating a distance between series for various purposes has received scholarly attention for quite some time. The most common application is … Continue reading
Winter composting: How to make friends with microbes and defy weather (podcast, too)
(Slightly updated 2019-04-08, although the podcast has not been updated to be consistent.) (This blog post is accompanied by an explanatory podcast. See below.) Many people compost. It can be easy or hard, depending upon your tolerance for turning and … Continue reading
Alex Steffen on Climate Defeatism
On 31st July 2018, Alex Steffen wrote (on Twitter) that: Reminder that climate defeatism—arguing that we are already so screwed that there’s no real point in acting to limit climate emissions or ecological damage—is absolutely a form of denialism, and … Continue reading
What will happen to fossil fuel-fired electric bills everywhere, eventually, including those fired by natural gas
See Cost of Coal: Electric Bills Skyrocket in Appalachia as Region’s Economy Collapses, by James Bruggers at Inside Climate News. Excerpt: The common denominator is American Electric Power, one of the nation’s largest utilities. It owns Kentucky Power, along with … Continue reading
big generation day … first complete with WSS II online
Our additional 3.45 kW solar PV is up and generating today, collecting substantial numbers of photons (500 kWh) by 0800 ET. (Click on figure to see a larger image and use browser Back Button to return to blog.) (Click on … Continue reading
What gives me hope … And it ain’t the small stuff
AS Arman Oganisian of Stable Markets writes “There are no solutions, only trade-offs.” That is a fundamentally engineering attitude. It is fundamentally about the economics, and, in particular, the dramatic drop in levelized cost of energy for wind and renewables, … Continue reading
What does it really mean for an electrical grid to be resilient?
(Slightly updated 2nd October 2017 to add a link to the Brattle Group’s report on the myth of baseload generation.) Secretary of Energy Rick Perry has recently called for `baseload` coal and nuclear plants which are no longer competitive in … Continue reading
On the responsibilities of engineers
A recent tour of Titanic Belfast with my son, Dave, and pondering the responsibilities of engineers with respect to Big Constructs, like defending a city against floods, or advising on the ramifications of deploying geoengineering, and worrying about the tendency … Continue reading
On Hoarding Electrons
I was once scolded by an energy wonk and political progressive at a semi-public forum for suggesting people “hoard electrons”. That is, instead of being grid connected, there seemed to me to be situations where becoming as independent of the … Continue reading
Solar Costs at `Jaw-Dropping Lows`; `No Evidence That Changing Power Mix Endangers Electric System Reliability`
From GTM: `Solar Moves in a Curious Direction Since Trump Quit Paris Deal: Up‘ There is “[n]o evidence that the changing power mix endangers electric system reliability”. Two reports: Advancing past baseload to a flexible grid Electricity Markets, Reliability and … Continue reading
Deloitte: The drumbeats for the extinction of utilities have begun
Deloitte Resources 2017 Study — Energy management: Sustainability and progress. From The Economist, 25th February 2017: FROM his office window, Philipp Schröder points out over the Bavarian countryside and issues a Bond villain’s laugh: “In front of you, you can … Continue reading
Installed Non-Utility Solar, Massachusetts, 12/2016
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I’m afraid, dear progressive friends, Mr Maher is 110% correct
I see nearly every week in the comedy called progressive plans for energy sources in the Commonwealth of Massachusetts. Progressives, it seems, eschew cooperation with business and attorneys and, as a result, never get anything respectable done. They are, as … Continue reading
“Hadoop is NOT ‘Big Data’ is NOT Analytics”
Arun Krishnan, CEO & Founder at Analytical Sciences comments on this serious problem with the field. Short excerpt: … A person who is able to write code using Hadoop and the associated frameworks is not necessarily someone who can understand … Continue reading
Taking advantage of the natural skepticism and integrity of scientists and their co-workers, and their commitment to scientific process
I’ve seen this. One can seldom discuss or debate a science denier, whether at (my) presentations at UUAC Sherborn or in many places online, without their employing moving the goalposts or, when they fail to response to an explanation, trotting … Continue reading
Papers of the day
From the Machine Learning and Computational Modeling Lab, School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran: A. Ahmadian, K. Fouladi, B. N. Araabi, “Writer identification using a probabilistic model of handwritten digits and Approximate Bayesian Computation,” International … Continue reading
Yes, I will be marching for Science in Boston
Like many, including Eli Rabett, I will be marching for Science in April, on Earth Day. My march will be part of the Boston march. Why? Because Science has been and is my life, and it always has been, and … Continue reading
You really can’t go home again: An update of “Getting back to 350 ppm CO2 …”
I have made an important update to an earlier post here, Getting back to 350 ppm CO2: You can’t go home again. The message, essentially based upon recent work Tokarska and Zickfield on one hand, and by The Global Carbon … Continue reading
Our daily electricity consumption since May 2016
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It’s the technology, not the brand
Just about a year ago, our home in Westwood began a march towards zero Carbon consumption, with heating, hot water heating, and even lawn mowing all converted to high efficiency electricity. As indicated at the time, our main automobile, a … Continue reading
Energy Consumption with Air Source Heat Pumps and Water Heater
Once nice thing about having a net metered solar PV array is that, with a little diligence, you can figure out how much electricity your household is consuming each day, or at finer resolution if you like (*). Below is … Continue reading
93% of year is free of cost, with heat, cooling, hot water, powered by free solar PHOTONS
A retrospective, something we all now need. Remember: Want your democracy back? Take back control of your energy supply Energy Democracy Dramatis personæ: How to do zero Carbon emissions at a residence (Westwood, MA) Three stories of solar energy domination: … Continue reading
“Climate Change and the Post-Election Blues” (a reblog of a post by Meredith Fowlie at The Energy Institute, BerkeleyHAAS)
Re: Meredith Fowlie, “Climate change and the post-election blues”, from The Energy Institute, BerkeleyHAAS Some direction. My only comments regard Dr Fowlie’s LCoE analysis. While correct from its perspective, LCoE depends upon the viewpoint of the cost efficiency. For example, … Continue reading