E Source has employees in more than 40 states and provinces across the US and Canada. Every day, we’re grateful for our diverse communities, stunning mountains, thriving forests, and pristine shorelines. As the devastating effects of climate change become more intense across our cities and landscapes, we’re committed to doing our part to protect the places and people we love.

The best science out there tells us we need bold, unprecedented action from as many people as possible to keep rising temperatures from exceeding 2° Celsius. To ensure a livable planet for future generations, we must dramatically reduce our emissions as a society and work to draw down the roughly 1.5 trillion tons of carbon dioxide in the atmosphere.

Our commitments

Our mission is to build a sustainable future in partnership with utilities and cities. Living our mission means building a sustainable future with our own business practices. We have two top-level sustainability commitments:


We’ll reduce our scope 1, scope 2, and scope 3 emissions by 50% by 2030 and produce net-zero carbon by 2050.


We’ll remove from the atmosphere all of the carbon dioxide we’ve emitted as a business since our founding in 1986 by 2050.

You can’t manage what you don’t measure. To cut our emissions 50% by 2030 and go net-zero carbon by 2050, we must understand our impact.

Our internal team of energy experts measures the greenhouse gas emissions across our business, including our direct emissions; our indirect emissions from electricity consumption; and our commuting, air travel, and emissions associated with providing food at our company events. We use these emissions inventories, verified by a third-party expert, to procure carbon removal credits to erase the emissions impact of our operations.

How we’re cutting emissions

We’ve worked hard at our headquarters in Boulder, Colorado, to achieve low-impact certifications and optimize the energy efficiency of our building:

  • We’ve been ENERGY STAR certified since 2016
  • We installed LEDs and tubular skylights with a control system that turns off lights based on occupancy
  • We installed 13 high-efficiency packaged rooftop units, making our air-conditioning system state of the art
  • We use a condensing natural gas water heater, which provides plenty of hot water without wasting excess energy
  • We installed sun shades and low-E glazing on the windows to control temperatures
  • We use an energy management dashboard to monitor our energy use; on average, our building consumes less than half the energy per square foot of an average office building in our climate zone
  • We created dedicated spots for electric vehicle charging in our parking lot

For the past several years, we’ve:

  • Been 100% powered by renewable wind energy thanks to Xcel Energy’s Windsource program
  • Made recycling and composting a regular part of our day
  • Used the ENERGY STAR Portfolio Manager tool for benchmarking and reporting
  • Provided an indoor bike room with loaner bicycles and an EcoPass to every employee in the Denver Regional Transportation District to encourage alternate transportation

In 2020, we started to:

  • Use only compostable or reusable dishware
  • Pursue additional areas for future efficiency projects
  • Work with our utility providers and participate in energy-efficiency and demand-response programs for small businesses
  • Implement low- and no-cost energy-efficiency measures (such as thermostat set points and smart plugs)
  • Eliminate beef from the menus of our member events—including the E Source Forum and leadership councils—and internal company meetings
  • Evaluate the emissions-reduction impact of strategically consolidating on-site visits to customer locations
  • Create an electric vehicle education group to help reduce barriers for employees interested in reducing their commuting emissions

How we’re paying off our emissions debt

Even if the entire globe went zero carbon overnight, there are still decades of heat-trapping gas in the atmosphere warming our planet. Those greenhouse gases in the atmosphere are a debt we need to pay off.

To begin paying off our carbon debt, we’ve partnered with Nori, a Seattle-based company that pairs individuals and businesses that want to remove carbon dioxide from the atmosphere. Nori works with farmers to adopt regenerative farming practices that build soil carbon, an otherwise expensive and risky transition for farmers.

In August 2020, we purchased 839 tons of carbon-removal credits from Nori to erase our 2018 and 2019 emissions.

Nori Certificate of Carbon Renewal awarded to E Source Companies LLC for 839 <abbr>NRTs</abbr>. It reads: This certifies that the buyer, E Source Companies LLC, paid the supplier, Harborview Farms, for ownership of 839 Nori Carbon Renewal Tonnes (<abbr>NRTs</abbr>) on August 25, 2020.

We’re excited to partner with Nori and other carbon-removal providers to continue removing the carbon dioxide we’ve added to the atmosphere since our founding. And we’re just getting started!