30 Largest Electric Utilities Ranked on Advances in Renewable Energy and Efficiency
A new analysis released today by Ceres shows that many of the nation's largest electric utilities and their local subsidiaries are moving toward lower carbon fuel sources and that ambitious state policies and strong corporate demand for renewable energy are key drivers of this trend.
The 2016 Benchmarking Utility Clean Energy analysis ranks the 30 largest electric utility holding companies and their 119 subsidiary companies, which collectively account for about 60 percent of U.S. retail electricity sales. The results show overall advances on renewable energy and energy efficiency in 2014, the latest year for which data is available, with some utilities producing 25 to 35 percent of their electricity from wind, solar and other renewables.
Wide disparities in the utilities' clean energy performance remain, however, underscoring the need for swift implementation of the U.S. Environmental Protection Agency's Clean Power Plan. The plan reduces carbon emissions from electric power plants by 32 percent by 2030.
"Renewable energy and energy efficiency, key building blocks of the Clean Power Plan, are increasingly cost-effective options for electric utilities looking to lower their carbon emissions," said Dan Bakal, director of electric power programs at Ceres, a nonprofit sustainability advocacy organization.
"Our analysis shows that the U.S. electric sector is in the midst of an unprecedented shift toward clean energy resources and that state policies are critical for continued progress in achieving national and international climate goals."
Utilities with the strongest results were typically in states with strong clean energy policies, such as Colorado, Minnesota, Massachusetts and California. The lowest-ranked utilities were mostly in southeast states, such as Alabama and Mississippi, which have weak state policies.
Top and Bottom Ranked U.S. Investor-Owned Electric Utilities on Clean Energy Deployment
Among the 30 holding companies, Sempra, PG&E, Edison International and Xcel ranked the highest for renewable energy sales, accounting for more than half of the total sales. Renewable resources made up more than 20 percent and in Sempra's case, nearly 36 percent, of the companies' sales in 2014. FPL, American Electric Power, ConEdison and PPL Corp ranked at the bottom, with renewable energy sales accounting for less than two percent of their total retail electricity sales.
Sempra Energy's renewable energy sales grew by more than 55 percent between 2013 and 2014 alone and Pinnacle West's grew by nearly 50 percent, while Eversource and DTE Energy demonstrated growth of more than 25 percent.
"Xcel Energy's positive ranking results from more than a decade of working with our states on clean energy policies," said Frank Prager, vice president, policy and federal affairs for Xcel Energy. "We continue to focus on our customers' growing desire for clean, renewable energy while demonstrating that we can successfully integrate these resources reliably and at a reasonable cost. It's an approach that is significantly reducing emissions and ensuring a more sustainable energy future for our communities."
"Californians care a lot about clean energy and we want to be an active partner in making the transition to a low-carbon economy as quickly as possible," said Melissa Lavinson, chief sustainability officer and vice president of federal affairs for PG&E. "Our showing in the Ceres rankings reflects our commitment to addressing the urgent challenge of climate change, while also helping our customers to use less energy and save money."
Energy efficiency top performers among the holding companies include Eversource Energy, PG&E, Portland General Electric, National Grid and Pinnacle West. Each achieved annual savings of at least 1.5 percent of their total retail electric sales, while also helping their customers save on their energy bills. Dominion Resources, FPL, Entergy and Southern Co and OGE Energywere among the weakest performers.
"Continued investment in energy efficiency and zero-carbon energy is central to Exelon's effort to build the next generation energy grid and drive the transition to clean energy," said Chris Gould, Exelon's senior vice president, corporate strategy and chief innovation and sustainability officer. "Exelon continuously works to identify new innovations and smart technologies to give customers greater access to clean energy and tools to help them use energy more efficiently."
Among the report's other key findings:
- The Clean Power Plan's key approaches to compliance, energy efficiency and renewable energy, are increasingly economically feasible options for electric utilities. Energy efficiency is the lowest-cost energy resource and renewable energy costs continues to decline dramatically.
- State policies are no longer the only driver of utility clean energy deployment. Companies with ambitious renewable energy sourcing goals are using their voice as major energy users to encourage utilities to offer more renewable energy. A consortium of major companies pledged not only to promote 60 gigawatts of new renewables development, but also to help overcome the barriers that complicate clean energy procurement. Companies are sourcing ever-greater amounts of clean energy directly from utilities.
- Performance is not the only measure of clean energy leadership, which should include utility support for clean energy policies. For example, National Grid and PG&E have been outspoken supporters of energy efficiency, while FirstEnergy has been a vocal critic of Ohio's energy efficiency policy and supported efforts to freeze the state's goals.
"Seeing the leaps the renewable energy leaders have made in just two years has been amazing," said Ron Pernick, managing director of Clean Edge, a clean-tech research and advisory firm, which co-authored the report with Ceres. "Governments, corporations and individual customers continue to demand clean, efficient energy and some utilities are answering that call."
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Since even moderate-intensity workouts offer a slew of benefits, walking is a good choice for people looking to stay healthy.
How to Rock Your Walk<p>Walking isn't just fun and healthy. It's accessible.</p><p>"Walking is cheap," says Dr. John Paul H. Rue, a sports medicine doctor at <a href="https://mdmercy.com/" target="_blank">Mercy Medical Center in Baltimore</a>. "You can do it anywhere at any time; [it] requires little to no special equipment and has many of the same cardio benefits as running or other more intense workouts."</p><p>Want to up your walking game? Try the tips below.</p>
Use Hand Weights<p>Cardio and strength training can go hand-in-hand when you add weights to your walk.</p><p>A <a href="https://journals.lww.com/acsm-msse/Fulltext/2019/03000/Associations_of_Resistance_Exercise_with.14.aspx" target="_blank">2019 study</a> found that weight training is good for your heart, and <a href="https://www.mayoclinicproceedings.org/article/S0025-6196(17)30167-2/abstract" target="_blank">research</a> shows it reduces the risk of developing a <a href="https://www.healthline.com/health/nutrition-metabolism-disorders" target="_blank">metabolic disorder</a> by 17 percent. People with metabolic disorders have a higher chance of being diagnosed with high cholesterol, high blood pressure, and diabetes.</p><p>Rue suggests not carrying weights for your entire walk.</p><p>"Hand weights can give you an added level of energy burning, but you have to be careful with these because carrying [them] over a long period of time or while walking could actually lead to some overuse injuries," he says.</p>
Make It a Circuit<p>As another option, consider doing a circuit. First, put a pair of dumbbells on your lawn or somewhere in your home. Walk around the block once, then stop and do some bicep curls and tricep lifts before walking around the block again.</p><p>Rue recommends <a href="https://www.healthline.com/health/exercise-fitness/running-with-weights" target="_blank">avoiding ankle weights</a> during cardio workouts, as they force you to use your quadriceps rather than hamstrings. They can also cause muscle imbalance, according to the <a href="https://www.health.harvard.edu/staying-healthy/wearable-weights-how-they-can-help-or-hurt" target="_blank">Harvard Health Letter</a>.</p>
Find a Fitness Trail<p>Strength training isn't limited to weights. You can get stronger by <a href="https://www.healthline.com/health/bodyweight-workout" target="_blank">simply using your body</a>.</p><p>Often found at parks, fitness trails are obstacle courses with equipment for pullups, pushups, rowing, and stretches to build upper and lower body strength.</p><p>Try searching "fitness trails near me" online, checking out your local parks and recreation website, or calling the municipal office to <a href="https://calisthenics-parks.com/" target="_blank">find one</a>.</p>
Recruit a Friend<p>People who workout together stay healthy together.</p><p><a href="https://bmcgeriatr.biomedcentral.com/articles/10.1186/s12877-017-0584-3" target="_blank">One study</a> showed that older adults who exercised with a group improved or maintained their functional health and enjoyed their lives more.</p><p>Enlist the help of a walking buddy with a regimen you aspire to have. If you don't know anyone in your area, apps like <a href="https://www.strava.com/" target="_blank">Strava</a> have social networking features so you can get support from fellow exercisers.</p>
Try Meditation<p>According to the <a href="https://www.nccih.nih.gov/research/statistics/nhis/2017" target="_blank">2017 National Health Interview Survey</a>, published by the National Institutes of Health, meditation is on the rise, and for good reason.</p><p>Researchers <a href="https://pubmed.ncbi.nlm.nih.gov/29616846/" target="_blank">found</a> that mind-body relaxation practices can regulate inflammation, <a href="https://www.healthline.com/health/biological-rhythms" target="_blank">circadian rhythms</a>, and <a href="https://www.healthline.com/health/glucose" target="_blank">glucose</a> metabolism, as well as lower <a href="https://www.healthline.com/health/high-blood-pressure-hypertension" target="_blank">blood pressure</a>.</p><p>"Any form of exercise can be turned into a meditation of some type, either by the surroundings you are walking in, like a park or trail, or by blocking out the outside world with music on your headphones," Rue says.</p><p>You can also play a podcast or download an app like <a href="https://www.headspace.com/headspace-meditation-app" target="_blank">Headspace</a> that has a library of guided meditations to practice while you walk.</p>
Do Fartlek Walks<p>Typically used in running, fartlek intervals alternate periods of increased and decreased speed. These are <a href="https://www.healthline.com/nutrition/benefits-of-hiit" target="_blank">high-intensity interval training (HIIT)</a> workouts, which allow exercisers to accomplish more in less time.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0154075" target="_blank">One study</a> showed that 10-minute interval training improved <a href="https://www.healthline.com/health/metabolic-syndrome" target="_blank">cardiometabolic</a> health, or lowered the risk of heart disease, stroke, and diabetes, just as well as working out at a continuous pace for 50 minutes.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111489" target="_blank">Research</a> also shows that HIIT workouts increase muscle <a href="https://www.healthline.com/health/fast-twitch-muscles" target="_blank">oxidative</a> capacity, or the ability to use oxygen. To do a fartlek walk, try walking at an increased pace for 3 minutes, slow down for 2 minutes, and repeat.</p>
Gradually Increase Pace<p>A faster walking pace is associated with a lower risk of <a href="https://www.healthline.com/health/copd" target="_blank">chronic obstructive pulmonary disease (COPD)</a> and respiratory diseases, according to a <a href="https://pubmed.ncbi.nlm.nih.gov/30303933/" target="_blank">2019 study</a>.</p><p>Still, it's best not to go from a stroll to an Olympic-worthy power walk in a day. Instead, increase your pace gradually to prevent injury.</p><p>"Start by walking at a brisk pace for about 10 minutes per day, 3 to 5 days per week," Rue says. "Once you've done this for a few weeks, increase your time by 5 to 10 minutes per day until you get to 30 minutes."</p>
Add Stairs<p>You've likely heard that taking the stairs instead of an elevator is a way to add more movement into your daily routine. It's also a way to step up your walking. Stair climbing has been shown to <a href="https://www.sciencedirect.com/science/article/pii/S2211335519301123?via%3Dihub" target="_blank">decrease the risk of mortality</a> and can easily add a bit more challenge to your walk.</p><p>If you don't have stairs in your home, you can often find them outside a local municipal building, train station, or at a high school stadium.</p>
Is Your Walk a True Cardio Workout?<p>Not all walks are equal. A walk that's too leisurely may not provide enough burn to qualify as cardio. To see if you're getting a good workout, try to <a href="https://www.healthline.com/health/how-to-check-heart-rate" target="_blank">measure your heart rate</a> using a monitor.</p><p>"A target goal for a good walking workout heart rate is about 50 to 70 percent of your maximum heart rate," Rue says, adding that maximum heart rate is <a href="https://www.healthline.com/health/fitness-exercise/fat-burning-heart-rate" target="_blank">typically calculated</a> by 220 beats per minute minus your age.</p><p>You can also monitor how easily you can carry on a conversation while you walk to gauge your heart rate.</p><p>"If you can walk and carry on a normal conversation, that's probably a lower intensity walk," says Rue. "If you are slightly breathless but can still have a conversation, that's probably a moderate workout. If you are out of breath and can't talk normally, that's a vigorous workout."</p>
Takeaway<p>By shaking up your routine, you can add excitement to your workout and reap even more rewards than a basic walk provides. Increasing the pace and intensity of a workout will make it more effective.</p><p>Simply pick your favorite variation to add some spice to your next walk.</p>
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