Filed under: Uncategorized | Tags: Andrew Restuccia, energy, fracking, oil imports, peak oil, Politico, transportation, US oil imports, US oil production
Attention news reporters, editors, producers and quacking heads: The US burns about 18.5 million barrels per day, and produces 7.7.
18.5 – 7.7 is 10.8.
These numbers are from the freakin EIA itself: http://www.eia.gov/petroleum/supply/weekly/pdf/table1.pdf
No wonder the Koreans are kicking our tails in math. We get reports like this, all over the internet and on NPR:
In October, for the first time since February 1995, the U.S. produced more crude oil than it imported, the Energy Information Administration said this week.
EIA, the Energy Department’s nonpartisan statistical arm, said U.S. crude oil production averaged 7.7 million barrels per day in October while 7.6 million barrels per day were imported.
Even if that were true, all it would mean is that we still have to import half the oil we burn. But we’re not there yet, and may never be (again).
Filed under: Uncategorized | Tags: bicycling, bike lanes, biking, Complete Streets, cycling infrastructure, NACTO, transportation, urban cycling
Filed under: Uncategorized | Tags: Air pollution, black carbon, dirt clod, energy, industrial emissions, ozone, ozone concentrations, particulate, PM-2.5, tailpipe, transportation
Via MIT. Looking at 2005:
… Total combustion emissions in the U.S. account for about 200,000 (90% CI: 90,000–362,000) premature deaths per year in the U.S. due to changes in PM2.5 concentrations, and about 10,000 (90% CI: −1000 to 21,000) deaths due to changes in ozone concentrations. The largest contributors for both pollutant-related mortalities are road transportation, causing ∼53,000 (90% CI: 24,000–95,000) PM2.5-related deaths and ∼5000 (90% CI: −900 to 11,000) ozone-related early deaths per year, and power generation, causing ∼52,000 (90% CI: 23,000–94,000) PM2.5-related and ∼2000 (90% CI: −300 to 4000) ozone-related premature mortalities per year. Industrial emissions contribute to ∼41,000 (90% CI: 18,000–74,000) early deaths from PM2.5 and ∼2000 (90% CI: 0–4000) early deaths from ozone. The results are indicative of the extent to which policy measures could be undertaken in order to mitigate the impact of specific emissions from different sectors — in particular black carbon emissions from road transportation and sulfur dioxide emissions from power generation.
Filed under: Uncategorized | Tags: butane, energy, gas prices, gasoline, NGLs, RVP, transportation, vapor pressure
Blending butane into gasoline is why gas prices fall in the fall, according to Robert Rapier. RVP = Reid vapor pressure, the higher the RVP the faster the evaporation. EPA sets limits on RVP of gasoline which are more stringent in summer months than in winter, allowing the increased blending of cheap, yet highly evaporative (word?) butane:
Butane has an RVP of 52 psi, which means pure butane is a gas at normal pressures and temperatures. But butane can be blended into gasoline, and its fractional contribution to the blend roughly determines its fractional contribution to the overall vapor pressure of the mixture. As long as the vapor pressure of the total blend does not exceed normal atmospheric pressure (again, ~14.7 psi) then butane can exist as a liquid component in a gasoline blend.
But with a vapor pressure as high as 52 psi, butane can’t make a large contribution to summer blends where the vapor pressure limit is 7.8 psi. For example, if a gasoline blend contained 10 percent butane, butane’s contribution to the vapor pressure limit is already 5.2 psi and you would still have 90 percent of the blend to go. It isn’t feasible to blend much butane into gasoline when the vapor pressure requirement is low. But when the limit increases by 5 or 7 psi, it becomes feasible to blend large quantities of butane.
Why do we care about blending butane anyway? Because it is abundant and cheap. Butane can routinely trade at a $1/gallon discount to crude oil or gasoline. Butane is a byproduct of oil refining, but is also a component of natural gas liquids (NGLs), which are condensed out during natural gas production. Given the huge expansion of natural gas production in the US, it should come as no surprise that NGL production is also on the rise.
Filed under: Uncategorized | Tags: Colorado, driving, energy, gasoline consumption, Great Recession, transportation, Vmt
Just like everywhere else…
DENVER – A new report from the Colorado Public Interest Research Foundations shows Coloradans have cut their per-person driving miles by 11.4 percent since 2005.
Since 2005. But is it headed back up compared to last year?
Filed under: Uncategorized | Tags: bicycling, Copenhagen, cryogenics, Denmark, sperm, transportation
Filed under: Uncategorized | Tags: energy, Peak Car, Peak Driving, Peak Motorization, peak oil, Sivak, transportation
It’s not about efficiency.
Filed under: maps | Tags: Indianapolis, Joan Hostetler, transportation, urban cycling, urban development, urban freeways
In Indianapolis and elsewhere. Here is a current map of some Indy freeways superimposed over a 1956 aerial photo.
Filed under: Uncategorized | Tags: energy, light vehicle sales, Peak Demand, peak oil, SAAR, transportation
via Calculated Risk:
Filed under: Uncategorized | Tags: carbon credits, climate change, electric cars, EV, Honda Fit EV, PEV, Tesla, transportation
Honda is not selling the Fit EV with gas under 4$/gal. Lowered their lease price by one third.
Under a complicated formula that varies by state, automakers earn “zero emission vehicle” credits for each electric vehicle they sell or lease, and they’re expected to rack up a certain number of credits each year. Not all green cars are equal: All-electric models such as the Fit EV are worth more credits than plug-in hybrid models with gasoline engines like the Volt. The number of credits the carmakers must earn rises each year, and the companies face fines for falling short. (They can buy credits from other companies, such as electric-only Tesla Motors (TSLA), that sell too few cars to be subject to regulation yet still earn credits which they are allowed to sell. Tesla made $85 million selling California and federal credits in the first quarter of 2013.)