Author Archives: Kate Zerrenner

New Study: Solar, Energy Efficiency Can Help the Texas National Guard Save Money and Water

HeroBannerMain24 croppedThis year has seen historic flooding across the South. In addition to the devastating rains that recently hit Louisiana, severe floods pummeled Texas earlier this year. In both cases, the states’ National Guards were first responders, rescuing families, delivering meals and supplies to survivors, and providing local agencies with high-water trucks, boats, and helicopters.

As the frequency of extreme weather events like these increases, it is imperative that the National Guard can continue devoting resources to critical, first-responder services. But in Texas, those services could be threatened by the state’s dwindling water supplies.

A new study from CNA Analysis & Solutions, funded by Environmental Defense Fund and in collaboration with the Texas Army National Guard (TXARNG), shows many Texas defense facilities are in water-stressed counties. Over time, this could result not only in higher water costs, but also power production constraints, since it requires a lot of water to produce and move electricity from traditional energy sources like coal and natural gas. Both of these challenges pose a direct threat to the budget and operating capabilities of the TXARNG. Fortunately, the analysis also indicates these same areas have great potential for solar energy, which requires little to no water to meet power needs on-site.

By tapping into that potential and pursuing bolder energy efficiency initiatives, TXARNG could ease pressure on the electric grid and reduce utility bills, all while safeguarding residents and precious water supplies. Read More »

Posted in Energy-Water Nexus, Solar Energy| Leave a comment

Going for the Green: Rio Olympics Show Link between Environment, Economy, Health

OlympicHandOlympic Games are historically about gold, silver, and bronze – not green. Even the “greenest” Olympics, held in London in 2012, used nearly 400 temporary generators, which release harmful pollution, including carbon monoxide and nitrogen oxides among many others. Nevertheless, when Brazil won its bid in 2009 to host the 2016 Olympics in Rio de Janeiro, the country pledged to host the "Green Games for a Blue Planet,” a festival with sustainability at its core.

Brazil, nearly as large as the U.S. and holding 60 percent of the Amazon rainforest, currently uses renewable energy to make about 85 percent of its electricity (compare that to the U.S., where only 13 percent of our electricity comes from renewable sources). With renewable energy success like that, who better to host the “Green Games?”

Yet, despite Brazil’s ambitious goals, years of planning, and an advantage in existing renewable energy resources, Brazil is falling short of its goal for a cleaner, greener Olympics. This is because serious social, political, environmental, and health challenges tangent to the Olympics have constrained the nation’s ability to realize the sustainability goals Brazil thought achievable in 2009.

Read More »

Posted in Energy-Water Nexus, Texas| Comments are closed

Texas’ Evolving Energy Reality: Clean Energy Uses Less Water

wind water flickrIt’s been an interesting time for water in Texas. Beyond the incredibly wet and cool spring we’ve been having, Memorial Day saw the second year in a row of record-breaking floods.

And a few weeks ago, the Texas Water Development Board (TWDB) asked for comments on the draft 2017 State Water Plan. The TWDB is the state agency responsible for water planning, and every five years it produces a strategy that “addresses the needs of all water user groups in the state – municipal, irrigation, manufacturing, livestock, mining, and steam-electric power.”

In the five years since the last state water plan, Texas has gone from one extreme to the other in terms of water: from the throes of a devastating drought to historic flooding that resulted in some reservoirs being full for the first time in 15 years.

In this climate of feast or famine, we need to better understand our water supplies and conservation efforts, both of which have a strong tie to our energy choices. That’s why Environmental Defense Fund (EDF) weighed in on Texas’ draft water plan. Not only does the state significantly overestimate the amount of water needed to make electricity, but a more comprehensive view of energy in relation to water demand and supply would benefit the 2017 State Water Plan and future plans. Read More »

Posted in Energy-Water Nexus, Natural Gas, Renewable Energy, Texas| Read 1 Response

Holistic Energy-Water Planning: Hedging Your Bets in a Water-Stressed World

ewn road to resilienceYou probably have some sort of insurance – for your healthcare, car, house, or apartment. Acting on climate change is also like insurance. It is all about managing the risks.

We can’t know for certain what the future brings, but recent research predicts a 40 percent shortfall of available water across the globe by 2030. In the face of this prediction, a new report from the World Energy Council, “The Road to Resilience – Managing the Risks of the Energy-Water-Food Nexus” helps lay some groundwork to ensure we plan for the climate risks that will affect our most essential resources.

I have talked about the reliance of energy on water and water on energy (the energy-water nexus), and touched on their connection to food. But let me make that linkage clearer: 70 percent of available global freshwater is used by the agricultural sector, and energy is the second-largest freshwater user globally after agriculture (although this varies from country to country and region to region). Relatedly, about 15 percent of total U.S. energy demand is for the food sector (this includes both agriculture and processing), and roughly 13 percent of U.S. energy use is for water-related purposes.  Read More »

Posted in Energy-Water Nexus| Read 4 Responses

How Energy-Water Data Can Help Cities Conserve Both, on World Water Day and Beyond

flickr broken water pipeToday is World Water Day, an international observance of water’s importance. This year’s theme is “Water and Jobs,” bringing awareness to the fact that nearly half of all workers on Earth (about 1.5 billion people) work in water-related jobs, and virtually all jobs depend on water in some way.

In conjunction with 2016 World Water Day, the nation’s capital is hosting the White House Water Summit. The President has called on organizations from around the country to voluntarily take new, specific, and measurable steps to address key water issues, such as drought or flooding, water availability, water-use efficiency, and water security. EDF heeded that call and made the following commitment:

Environmental Defense Fund (EDF) is announcing a partnership with Pecan Street, Inc. to gather data and conduct analysis to help 50 households in Houston and Austin understand the connection between their water and energy use. Results of this analysis will help Houston and Austin reduce the water and energy footprint of the more than 3 million utility customers in the two cities. In addition, EDF will work with the University of Texas at Austin, the University of Texas at San Antonio, and the University of California, Davis to help water providers of three to five major Texas cities better manage the energy use embedded in their water systems, with an additional one or two states to be announced later this year.

The work laid out here addresses the issue of embedded energy in water systems, or, in other words, the electricity it takes to secure, deliver, treat, distribute, and heat water. (This is part of what’s known as the “energy-water nexus”.) Read More »

Posted in Energy-Water Nexus| Tagged | Read 3 Responses

Forget Taco Wars – the Real Competition is Over Who is Using Water More Wisely

Guadalupe_river_Hunt_TXSan Antonio and Austin just called a cease-fire on a taco war over which city invented the breakfast taco. Both make excellent tacos: from the traditional chorizo and egg taco in San Antonio to a free-range egg and organic spinach taco in Austin. But this debate was about more than just tacos – it was about the history and culture of these two neighboring cities.

Only 80 miles apart, San Antonio and Austin have some significant differences. San Antonio is known as “Military City USA” largely due to its huge military bases, but it’s also known for other industries like biotech, military medical centers, and a dynamic business relationship with Mexico. The capital city’s economy, on the other hand, is based on high-tech, entertainment, state government, and the behemoth University of Texas at Austin. San Antonio is one of the largest Hispanic-majority cities in the country (at 63 percent in 2010), while Austin’s diversity comes in large part from people flocking to the Capitol from all over the state and country. As someone with roots in both San Antonio and Austin, I appreciate both – I’m an equal opportunity taco lover.

But both cities share an important commonality: exploding population growth. The population of the 13 counties that make up the Austin-San Antonio corridor is estimated to increase by 77 percent by 2050, to 6.8 million people. Extreme growth brings intense pressure on resources and services, particularly water in this drought-prone region. Both cities are standing up to that challenge through careful water conservation measures and by advancing clean energy. Read More »

Posted in Energy-Water Nexus, Solar Energy, Texas, Wind Energy| Comments are closed
  • Project manager
    Kate Zerrenner develops and implements strategies to promote energy and water efficiency and climate change solutions in Texas, as well as leads EDF’s multi-year campaign to influence and enact state and national energy and water efficiency policy, including breaking down financial, regulatory and behavioral barriers.

    Follow Kate on Twitter »

  • About this Blog

    EDF Energy Exchange - Accelerating the clean energy revolution

    EDF's energy experts discuss how to accelerate the transition to a clean, low-carbon energy economy.

    Follow EDFEnergyEX

  • Get blog posts by email

    Subscribe via RSS

  • Categories

  • Authors