April 19th, 2018 | by Nicolas Zart
We've been covering the development of the Sun Flyer electric airplane (e-plane) for quite some time now, and we are happy to report that its successful maiden test flight has been completed at the Centennial Airport near Denver, Colorado
March 9th, 2018 | by John Farrell
When author local activist saw that his community wanted a better, more renewable future he took action — now he’s doing the same work in the Colorado State Senate.
February 27th, 2018 | by Joshua S Hill
As barriers to begin to fall, the community-scale solar segment in the United States has shown itself to be the fastest growing segment, thanks to a 40% decline in the levelized cost of energy for these systems over the last two years.
February 12th, 2018 | by John Farrell
Measure 2L passed with 51.7% of the vote, keeping Boulder on course to make history as first city to municipalize its electric company in years, and the only one ever to do it specifically to advance clean, local power
January 11th, 2018 | by John Farrell
As energy efficiency and renewable energy technologies continue to improve both functionally and economically, Zero Net Energy (ZNE) buildings are spreading in communities around the country. The energy savings and environmental benefits of ZNE buildings, which produce as much energy using on-site renewables as they consume, are catching the attention of city leaders, regulators, and individuals nationwide
December 16th, 2017 | by Steve Hanley
SoCalGas is funding research into using excess electrical power from wind and solar to make hydrogen. It claims the process can provide long term storage for electricity better than grid scale batteries.
November 14th, 2017 | by Steve Hanley
Arrivo says it has signed a deal with the state of Colorado to construct a "hyperloop inspired system" that will whisk cars and cargo between Denver and Boulder in 10 minutes.
November 13th, 2017 | by John Farrell
An innovative group purchasing program in Boulder County, Colorado, put hundreds of electric vehicles on local roads and sparked the addition of more than 1 megawatt of rooftop solar in its first two years. Now, the initiative is a springboard for efforts nationwide to allow consumers to seize control of their clean energy future.
October 27th, 2017 | by Kyle Field
Energizer Solar has moved into the consumer electronics space with a new product lineup that pairs Energizer's trusted batteries with portable solar panels for a system that provides power when you need it, where you need it
October 26th, 2017 | by John Farrell
Fast-improving technology and growing consumer interest continue to put momentum behind the clean energy transition. Unlike utilities and other industry players that have largely ignored growth opportunities as market dynamics shift, a coalition of independent solar companies is harnessing its combined power to command more influence in the marketplace.
October 11th, 2017 | by Steve Hanley
Seven western states plus Virginia are planning to expand their EV charging infrastructure using some of the money coming to them from the settlement of the Volkswagen diesel emissions cheating scandal.
September 15th, 2017 | by Steve Hanley
The plunging cost of wind power has forced the cancellation of a long planned expansion to the coal power generating facility in Holcomb, Kansas
August 28th, 2017 | by John Farrell
Pueblo, Colorado, last month became the first city to commit to an all-renewables future since President Donald Trump took office
June 19th, 2017 | by Cynthia Shahan
Colorado is sometimes at the forefront of policies to protect clean air and the environment. As part of that and its effort to bring good jobs to the state, Colorado's one of the top states for solar energy. It also offers perhaps the best electric car incentives in the nation. Now, some in the state are also looking to clean up their buses. A nice bit of news in this regard comes from Aspen.
June 16th, 2017 | by Joshua S Hill
It's been a huge month for Vivint Solar, one of the United States' leading residential solar providers, and it continues the upward momentum this week, announcing that it will be expanding its services into Vermont.
June 9th, 2017 | by Joshua S Hill
Vivint Solar, one of the United States' leading residential solar companies, announced on Thursday that it would be relaunching its residential services in Nevada after a two-year absence.
June 8th, 2017 | by Joshua S Hill
Just two days after US solar installer Vivint Solar announced that it had acquired $100 million in its latest round of financing, the company announced that it was expanding its residential services into Colorado.
May 6th, 2017 | by Kyle Field
Hello Solar put together an interactive map documenting all of the cities in the US that have committed to moving to 100% renewable energy*. The map includes the timing on which the cities have committed to complete the transition and the population of each for context. (Note: since the site and many cities write "100% renewable energy," we are using that language, but many of these commitments are actually just about 100% renewable energy for electricity or electricity + heating.)
May 4th, 2017 | by Zachary Shahan
Our friends over at EV Volumes — a Silver Sponsor of our upcoming Cleantech Revolution Tour conference in Berlin+Wroclaw — recently shared some interesting state-specific electric car sales data with us. The most notable finding is clear enough in the following chart
April 24th, 2017 | by Joshua S Hill
The United States is closing 46 coal-fired generating units at 25 electricity plants across 16 states over the next few years, transitioning to natural gas or intentionally closing them, and a new report shows that this will likely result in eliminating about 30 million tons of annual coal demand by the end of 2018.