(Thu, 27 Dec 2018) Nearly 40%, or 10.4 gigawatts (GW), of utility-scale solar photovoltaic (PV) systems operating in the United States at the end of 2017 were fixed-tilt PV systems rather than tracking systems. Of the utility-scale fixed-tilt solar PV systems, 76% of the capacity was installed at a fixed angle between 20 degrees and 30 degrees from the horizon.
Security flaws threaten our privacy and bank accounts. So why aren’t we fixing them?
(Wed, 26 Dec 2018) U.S. energy expenditures declined for the fifth consecutive year, reaching $1.0 trillion in 2016, a 9% decrease in real terms from 2015. Adjusted for inflation, total energy expenditures in 2016 were the lowest since 2003. Expressed as a percent of gross domestic product (GDP), total energy expenditures were 5.6% in 2016, the lowest since at least 1970.
A giant dam was supposed to help lift Ecuador out of poverty. Instead, it’s part of a national scandal, and a future tethered to China.
(Fri, 21 Dec 2018) U.S. electric power sector carbon dioxide emissions (CO2) have declined 28% since 2005 because of slower electricity demand growth and changes in the mix of fuels used to generate electricity. EIA has calculated that CO2 emissions from the electric power sector totaled 1,744 million metric tons (MMmt) in 2017, the lowest level since 1987.
(Thu, 20 Dec 2018) In 2016, hydraulically fractured horizontal wells accounted for 69% of all oil and natural gas wells drilled in the United States and 83% of the total linear footage drilled. The combination of horizontal drilling and hydraulic fracturing has increased the rate of recent U.S. crude oil, lease condensate, and natural gas production.
The design by the Genoan-born architect features 43 lamps to honor the 43 victims of the Morandi Bridge collapse last summer.
Under a program China insisted was peaceful, Pakistan is cooperating on distinctly defense-related projects, including a secret plan to build new fighter jets.
(Tue, 18 Dec 2018) Results from the 2015 Residential Energy Consumption Survey (RECS) introduced estimates of energy consumption for an expanded list of energy end uses. For electricity, the number of end uses estimated has expanded from 4 to 26 by adding estimates for equipment such as dishwashers, clothes washers, clothes dryers, televisions, and lighting.
Amazon is coming to New York despite the city’s transit horrors. Other companies may not be so forgiving.
