Energy Exchange

International Women’s Day: Spotlight on a Texas Clean Energy Leader

By Kate Zerrenner / Published: March 8, 2017

Center: Debbie Kimberly, Vice President for Customer Energy Solutions at Austin Energy.

In honor of this year’s International Women’s Day we wanted to highlight a clean energy leader in Texas, and we didn’t have to go far from Environmental Defense Fund’s Austin office.

Debbie Kimberly is the Vice President for Customer Energy Solutions at Austin Energy (AE), the municipally-owned electric utility for the City of Austin. Her division is responsible for some of the utility’s clean energy portfolio, including energy efficiency, demand response (a tool that rewards people and businesses for using less electricity when the grid is stressed), and solar initiatives.

Debbie came to AE just over four years ago from an illustrious run at Arizona’s Salt River Project – the electric utility that serves the Phoenix area. I recently interviewed her about her leadership in Texas’ clean energy space. Read More »

Posted in Clean Energy, Texas / Comments are closed

Texas Should Get Its Head in the New Solar Market Game

By Kate Zerrenner / Published: February 21, 2017

What would a world powered by clean, low-water energy look like? If you visit Israel’s southern region, you don’t have to imagine.

In 2011, Arava Power in the southern Israeli desert launched a 4.9 MW solar field (enough to power more than 3,000 U.S. homes). Since then nearly 200 times as much capacity – both fields and rooftops – has been installed in the region. By 2025, it’s likely solar will provide 100 percent of daytime electricity, plus excess, along the border with Jordan.

With solar technology more advanced and cheaper than ever, solar power can take off quickly in Texas, as it has in Israel.

The Arava Desert, where many of Israel’s solar fields are located, averages about 360 days of sunshine per year. Austin, where I live, averages about 300 days per year, and it’s not even as sunny as West Texas. But in January 2017, solar provided just 0.4 percent of power across the vast majority of the state. There is huge opportunity for solar growth in Texas. Read More »

Posted in Solar Energy, Texas / Comments are closed

Saving Energy and Doubling Worldwide Water Supplies – One Drip at a Time

By Kate Zerrenner / Published: February 9, 2017

Netafim HQOn a warm December day, I stood in a jojoba field in the Negev Desert in southern Israel and watched water slowly seep up from the ground around the trees. First a tiny spot, then spreading, watering the plants from deep below. This highly efficient system is known as drip irrigation, and I was there to meet with the world’s leading drip irrigation company, Israel-based Netafim.

Naty Barak, the Netafim director who I met on the visit, notes that if the world’s farmers increased their use of drip irrigation to 15 percent (up from just under 5 percent now), the amount of water available for use worldwide could double.

Drip irrigation saves more than water. Whereas traditional irrigation typically uses quite a bit of energy, drip reduces the pressure (and power) needed to get the water to the crops while reducing the need for energy-hungry fertilizers. Plus, due to the inextricable link between water and power, saving water results in further saved energy.

Texas has already enhanced its water efficiency, but it could go further and take a page out of Israel’s book. By investing in thoughtful drip irrigation now, Texas could lead the nation on expanding this innovative technology and significantly reduce the energy footprint of its irrigation sector, while protecting water supplies for our growing cities and creating more sustainable farming practices. Read More »

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

Lowering Desalination’s Energy Footprint: Lessons from Israel

By Kate Zerrenner / Published: January 30, 2017
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Kate Zerrenner and Leon Kaye of Triple Pundit standing in a desalination pipe at Sorek.

There’s an old expression that whisky is for drinking and water is for fighting over. The Legislative Session is upon us again in Texas, and count on water being an issue, as it always is in this drought and flood-prone state.

To start, this Session will see the approval of the 2017 State Water Plan (SWP), which is done in five-year cycles. In the five years since the last plan, Texas has gone from the throes of a devastating drought to historic flooding, which resulted in some reservoirs being full for the first time in 15 years.

Moreover, as more people move to Texas and climate change advances, there will be greater strain on the state’s water supplies. According to the SWP, Texas is already in a tighter situation than it was just five years ago: Surface water and groundwater availability will be 5 percent lower in 2060 compared to predictions in the 2012 plan, and existing water supplies are expected to drop by 11 percent between 2020 and 2070. Where are we supposed to get the water we need? Read More »

Posted in Energy-Water Nexus, Texas / Tagged | Authors: / Comments are closed

If Israel Can Find Common Ground around the Environment, Why Can’t Texas?

By Kate Zerrenner / Published: January 10, 2017
A solar array at the Arava Institute.

A solar array at the Arava Institute.

Deep in the Israeli desert is an academic institute that is building peace in the region by putting nature at its center. The Arava Institute, in partnership with Ben Gurion University, brings students from Israel, Palestine, Jordan, and around the world to find common ground around environmental problems and build trust – and peace – from there.

On a recent trip to Israel, including to the Arava Institute, I was told many times by many people, “Everything is political here.” Water and energy are no exception. In a region where water can be scarce and oil has long reigned as king, the politics of environmental issues are even more extreme than what people in many parts of the world can wrap their heads around.

Of course, environmental issues in Texas – and across the country – can be highly divisive. But polls consistently show Americans want to protect and defend the health of our children and the well-being of our communities. And clean energy can play a critical role: Our nation’s power sector accounts for nearly 40% of U.S carbon emissions – causing health problems such as asthma attacks, heart attacks, and a staggering number of premature deaths every year.

Today, Texas opens its 85th Legislative Session. Wouldn’t it be refreshing if, instead of fighting over taking action on climate change, leaders sat down with a common starting point: to ensure clean, available water and clean air through renewable energy, while maintaining a robust economy? Perhaps we can learn from the Arava Institute and start with our commonalities, like the desire for clean air and clean water, to build cooperation and achieve clean energy progress. Read More »

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Why Strategic Choices – and Water – Could Make People More Energy-Efficient

By Kate Zerrenner / Published: January 9, 2017

At my household, a new year means a new energy and water-use baseline. By that I mean, every month, I look at how much electricity and water I used in comparison to the same month the previous year – so I can try to be as efficient as possible. But I work in the energy field, and I know that’s not a typical New Year’s tradition. Most people don’t examine the trends of their energy-use or spend much time thinking about how to reduce it.

So, what motivates the “average” person to take action and be more energy-efficient? It depends.

A recent study by the Pacific Institute for Climate Solutions and the American Council for an Energy Efficient Economy (ACEEE) looked at the psychology behind individuals’ energy efficiency behavior, and how that information could be used to design more effective programs.

The study came away with some fascinating findings that show electric utilities need to be strategic in the way they create, as well as communicate about, their efficiency programs. Moreover, it led me to believe showing how energy efficiency relates to water – the quality and availability of which many people care about – could help encourage people to be more mindful about their energy use. Read More »

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