Tag Archives: mileage

Progress…I Guess

Well, there goes the neighborhood.  So to speak.

The Cedar Valley Nature Trail is paving another six miles this summer.  Unfortunately for me this is the same portion of trail that I ride several times a week.  In fact, this is the best part of my frequent rides because the minute the surface turns to loose aggregate the crowds thin out.

I am of two minds about this project.

First, I am glad to see the paving continue northwards.  The section of the trail west of Interstate 380 frequently becomes a sandy and rutted mess.  Also, a paved trail attracts more users and more users is a good thing.

It also means that early season rides can go longer before having to bail out due to wet conditions.

Second, I am unhappy to see another section of trail fall to the paving gods.  Losing the final third or so of my out route will reduce my off-pavement time unless I really up the mileage this season.  Sure, there are lots of gravel roads that radiate out from the Cedar Valley Nature Trail but being off grade really spoils a rider.  Not worrying about a seventeen-year-old checking Facebook while driving an Oldsmobile Alero down a gravel road is a sweet feeling.

Progress…I guess.

February 2020 Solar Production and EV Efficiency

The monitoring platform for my expanded photovoltaic array is back online:

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It was only turned on for the last few days of the month, so I do not know how the system performed for the entirety of February.  However, in just four days the system recorded more production than the entire month of February last year.  Granted, the array was under ten inches or more of snow for most of that time last year.

Overall, I ended up nearly even in terms of production versus consumption.  The actual number was approximately 4 kWh “ahead.”  I am figuring that I will end up “ahead” of consumption for most months here on out until January rolls around again.

The crazy thing was that if I had driven a normal amount this month I would have been even more in the black.  Due to a work commitment out of town for an entire week I drove approximately 50% more miles per day on average in the month of February.  Those highway miles added up to a lot of extra driving at a not so efficient clip.

For the month of February I drove ~973 miles at an average efficiency of 4.6 miles per kilowatt hour.  That driving used ~212 kWh of electricity and saved ~1,086 pounds of CO2 being emitted, assuming all electricity was pulled from the grid at an average carbon intensity for my region of the country, versus if those same miles were driven in my truck.

Cracking the Electric Vehicle and Solar Photovoltaic Code in April

April felt like the month where I cracked the code on this whole electric vehicle thing.  How so?  After averaging 5.0 miles per kilowatt hour (kWh) in March and considerable less in the prior two months I ended April at an average of 5.4 miles per kWh.  Over the course of ~630 miles of driving I saved ~724 pounds of carbon dioxide emissions compared with my prior ICE vehicle.

Since mid-January when I acquired my used Nissan Leaf, I have driven a total of ~2,214 miles and saved ~2,456 pounds of carbon dioxide.  Not to mention saving ~$230 in fuel costs, which is a number that is sure to go up as fuel costs are creeping up here in eastern Iowa along with the spring time temperatures.

The story gets even better when you factor in April’s solar production:

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The numbers are not dramatic in and of themselves.  However, for the month—including the electricity that I used to “fuel” my EV—I produced ~95 kWh in excess of my needs.  For the month of April my house and my car were more than fueled by the sun.  That is the future.

Imagine what things will be like when I increase the generating capacity of my solar array by almost 60%.  Based on my calculations that will allow for more than 15,000 miles of electric driving per year which should cover both my and my wife’s commuting miles in town.

The Nissan Leaf has Arrived

This is my Nissan Leaf:

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There are many like it, but this one is mine.

It is not new.  It is used and that is where the story begins.  The frequently touted advice is for someone to buy a used car because depreciation begins the minute someone drives a car off the dealership lot.  Now, one can argue against this logic because there are zero used cars sitting on the lot for sale with a few miles that cost a lot less than the new cars on the same lot.  Sorry.

However, with this 2015 Nissan Leaf it is a story about depreciation and market forces.  New, the 2015 Nissan Leaf S started at ~$30K.  Three years and ~32,000 miles later I was able to buy the same vehicle for less than $11K before tax, title, and license.  For those of you keeping score at home that is a decline in value of about 65%.  Granted, some of that decline in value is related to the $7,500 federal EV tax credit which pushed the effective new price down.

Nonetheless, the decline is dramatic.  This is where market forces come into play.  People want the latest and greatest.  With EVs that trend is exacerbated because the latest and greatest frequently get you a lot more range, which is the single biggest issue with EVs for most drivers.  If you are willing to live with a more limited vehicle you can really score a great deal on a used EV right now.  I am living proof.

Here is what living with a compromise solution looks like.  My Nissan Leaf shows a range of anywhere from 90 to 100 miles on 100% battery charge when I activate the car:

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When new the range was within that range.  See what I did there?  I digress.

Therefore, the degradation of the battery pack that plagued earlier Nissan Leafs does not seem to be impacting my car’s battery pack.  This is due to the 2015 model having the so-called “lizard architecture” that is better suited to handle temperature extremes, particularly high heat.  A common complaint of the Nissan Leaf from the EV community is that they designed the vehicle to use passive, ambient air cooling for the battery pack.  Not so good in the southwest United States but it should not be too much of a problem in eastern Iowa.

Overall, this vehicle is not much of a compromise compared to anything.  The range allows me to travel round trip to Iowa City—some 36 miles to the south—without having to worry about recharging.  Although there are plenty of spots to plug-in down south.

MPG (Beer Equivalent)

The comments were lobbed across the common table at the local taproom:

How many miles per gallon do you get on your bike?

Is it really that efficient to ride a bike?

And so on and so forth.  The topic of conversation was the next step in the #myPersonalParis evolution.  In order to reduce my personal emissions of greenhouse gasses I have set the goal of riding my bike to work three days a week through the fall.  Sixty percent of my commuting trips by bike might seem a little aggressive, but I feel that doing more than half will be a sort of tipping point in my daily behaviors.  It’s a theory and I am going to test that theory in practice.

The miles per gallon question is a constant because there is always some smart ass in the room who says, “You aren’t carbon free because you are breathing.”  Sure enough, but I had to be breathing anyway so I consider that a moot point.

However, let’s spend a moment to ruminate on the relative efficiency of riding a bike to work versus commuting in my truck.

A gallon of gasoline contains 7,594 kilocalories of energy and a gallon of e85 contains 5,463 kilocalories of energy. [1]  On average my truck—a Ford F-150 equipped with a flex-fuel V-8 engine—achieves 15 miles per gallon using e85 fuel.  Simple math says that my truck uses approximately 364 kilocalories to travel one mile.

What about the bike.  Based on over 1,110 miles of riding tracked via a Garmin vivoactive HR the kilocalories expended to travel one miles via a bicycle is approximately 65.  The range is anywhere from 60 to 75 with the high end representing some serious pedal mashing on a long distance ride.

Based purely in terms of kilocalories the bicycle is around six times more efficient just to transport myself from point A to point B.

How does that translate to miles per gallon?  I do not care because I am not fueled by gasoline.  Beer on the other hand?  The average pint of beer—not the light lager swill—contains 200 kilocalories.  A gallon therefore contains 1,600 kilocalories.  [2] Therefore, I achieve approximately 25 miles per gallon beer equivalent or MPGBE.

It’s a ridiculous comparison, but sometimes we need a little folly.

 

Friday Linkage 10/11/2013

Do you ever have weeks go by where you stop. Look up, and wonder, “Where did the last month or so go?”  Yep, I am having one of those periods of time.

On to the links…

The Huge Chill: Why Are American Refrigerators So Big?—I found this exploration into the gargantuan size of American refrigerators fascinating.  Maybe our fascination with giant sized cooling boxes and Costco sized quantities is a bad thing?  Hmmm….

How America Cultivated a Generation of Obesity—The idea of a hamburger’s pickles being considered a vegetable in terms of a serving is just asinine.  But, someone figured out a way for a few parties to make money so it became law.  I do like how the anti-fat crusade of my childhood is getting some of the blame for our current dietary straits.  When I was a kid no one wanted to eat anything with fat.  If a package said “fat free” it was carte blanche to eat.  Too bad all those carbs made us fat.

Unease in Hawaii’s Cornfields—You do not think about Hawaii having corn or soybean fields, but such fields are very common on Kauai.  There is a growing sentiment on the islands that these fields of GMO crops are not welcome visitors from the mainland.

How to Build a Cider Press and Harvest Apple Juice—After reading this I spend my days walking around the area looking at the apple trees dropping fruit no one wants and daydreaming about making gallon upon gallon of fresh pressed cider.  I am also daydreaming about using my homebrew skills to make some homebrew apple hooch.

Just What is in a Chicken Nugget—I am glad that someone asked the question and did the science, but I am now even more disturbed.  Only 40% meat?  Fat, cartilage, and pieces of bone make up the rest?  Reminds me of the classic John Candy movie The Great Outdoors when the he is challenged to eat the Ol’ 96er.  At the end the cook says he needs to eat what’s left on the plate.  But it’s just fat and gristle.  Part of the weight.

All You Can’t Eat, Pigs Will—This is a great story from a while back about a hog farmer that takes the leftovers from Las Vegas buffets and feeds them to his animals.  I wonder if the animals also wake up in a few days sunburned and full of regret.

The Largest Coal-Fired Power Plant In New England Is Shutting Down—It’s not the dirtiest coal plant in New England, but the Brayton Point Power Station is the largest of six coal fired plants in New England and it will be retired in 2017.  Good riddance!

Illustrating How the Keystone XL Tar Sands Pipeline Fails President’s Climate Test—This article is just filled with data and charts that show just how awful the Keystone XL pipeline would be for the environment.  As if most people with half a brain who follow the news did not already know that.  There are three or four such people out there.

New Arizona Solar Plant Uses Salt To Keep Producing Electricity When The Sun Goes Down—It’s electricity derived from solar energy after the sun goes down.  It’s not from a traditional battery, per se, but rather a bank of molten salt that stores heat to create steam to drive turbines later.  Freakin’ cool.

Is Solar Power Facing a Dim Future?—Too often the story about solar power focuses on the panel makers and the trouble that these providers are having.  Panels, however, are turning into a commodity and that business is defined by the race to the bottom in terms of price.  Solar is here to stay!

Could Mexico be at the Start of a Solar Boom—Mexico has some pretty audacious goals.  It wants to generate 35% of its power from renewable sources by 2026, which would be up from ~15% today.  Solar is part of that equation because like the American Southwest a large swath of the country is bathed in excellent solar resources.

How Apps are Helping Us Drive Less—The U.S. Public Interest Research Group (PIRG)—an acronym that is almost as convoluted sounding as SHIELD—released a report that finds our mobile technology is helping drive the trend toward less driving.  Anything that gets us out from behind the wheel is a good thing.

Industry Ahead of Schedule on Mileage Goals—According to an official at the EPA, the auto industry is ahead of pace to meet the new mileage goals instituted recently.  It’s amazing how these new targets were going to be catastrophic according to the pundits on the right, but now industry is ahead of the game.  Oh, and how is the auto industry doing right now?  Pretty dang well.

Plastic Waste is Hazardous for Sub-Alpine Lakes as Well—Is there anywhere that our plastic pollution will not soil?  Just asking.

Engine Exhaust May Be Contributing to Bee Colony Collapse—Is there anything that we humans do anymore that is good?  It seems like every action we take has a dark side that harms the environment.  It’s enough to get someone down in the dumps.

Fall of USSR Locked Up World’s Largest Carbon Sink—Apparently, when the USSR fell into disunion millions of acres of farmland went fallow.  Over the years those millions of acres have sucked up carbon to become one of the biggest carbon sinks in the world.

The Scary Truth About Antibiotic Overprescription—Most of the press on this issue relates to the insane amount of antibiotics that we feed farm animals in feedlot operations.  However, humans are over prescribed antibiotics as well.  Great.

Dirtball’s ‘Green’ Jeans Are Made In U.S. From Recycled Water Bottles—It was not the recycled content of the jeans that really caught my eye, but the infographic showing where all of the components were sourced from.  Too often we think of “Made in the USA” to mean assembled here from foreign parts, but the supply chain is critical to creating sustainable industries.

Friday Linkage 1/11/2012

I have been slow and loathe to post anything the past week.  It’s like I have nothing good to write about.  Maybe it’s that seasonal affective disorder that I have heard about.

On to the links…

Average Fuel Economy for U.S. Vehicles in 2012 was 23.8 MPG—This is one of those “boring, but important” stories.  The average fuel economy of new vehicles in the U.S. has been increasing recently and it will only continue to rise as new CAFE rules come into play.  A bit of good news, right?

FDA Offers New Rules to Stop Food Contamination—I am really torn on the new rules the FDA is proposing.  It seems like another wicket for producers to jump through that will burden small producers and allow the large players to just dominate even more.  On the other hand, there is no excuse that a country as advanced as the U.S. should have so many people get sick and/or die from contaminated food in a year.

Staten Island Ferry to Run on Liquefied Natural Gas—When you get done reading this short piece on the conversion of a Staten Island ferry to run on liquefied natural gas (LNG) you will wonder to yourself why all of the ferries are not running on such fuel.  Really, why not?

Queens Wants to Turn an Abandoned Railway into a Parkway—Now, everyone wants their very own High Line.  This is a good thing because the world needs more urban parks.

Lean Manufacturing Addressing Climate Change through Reductions in Waste—I spent the first few years of my professional career in an advanced manufacturing environment where lean manufacturing was the order of the day.  It’s easy to get swayed by the discussion that we can “help” the planet by making less or no waste when making goods.  That is true on the face of things, but it avoids the larger question of whether we need the stuff in the first place.  Just saying.

Unilever Eliminates Plastic Microbeads in Facial Scrubs—Plastic microbeads, like triclosan in ant-bacterial soap, is a pox upon American medicine cabinets.  The little beads that are supposed to exfoliate just wash down the drain, do not get captured for disposal, and end up in the food system of aquatic creatures.  Great.  Just get a freakin’ loofah.

Junk Food Marketers Target Your Kids Online—Isn’t it lovely how wherever children go to play they are bombarded by messages, cleverly disguised as entertainment, from purveyors of crap food?  It’s the little cuties brought to you by Tyson Chicken Nuggets of Doom!

Minnesota’s Largest Solar Installation Starts Producing Energy—If solar power can make it in Minnesota, it can make it anywhere.  If you think there is no sun in England or Germany or the Pacific Northwest you have never spent a winter in Minnesota.  From November until April the sky is a shade of slate gray so depressing it makes ice fishing seem like an ideal past time.

Tehran Choked by Pollution—Nothing says great governance like your capital city being choked by smog to such an extent that it cripples daily life.  Before spending money on a nuclear program or military weapons maybe you ought to think about cleaning up the air.  Just a thought.

My New Overlord

My new Subaru Outback is insidious.  It can control my behavior with the slightest of effort.  How?  Here is how:

That little display of numbers changes the way I drive.  Already, I drove conservatively but now I am veritable hypermiler.  If the display drops below a certain number I am gliding to stops from further back and coming off the line at an intersection with a little more care.  It is brutal how much of a slave I am to three little digits!

Apparently, the science of feedback loops is well documented.  I used to kind of scoff at the displays in the Ford Fusion Hybrid as gimmicks.  That is until I had one staring at me with its cold eye of disapproval at my slightly sporty acceleration or failure to maximize a gliding opportunity.  Damn you MPG display!

Note: The display is liking me today.  23.4 miles per gallon from all in town driving.  Oh yeah!