Source: Department of Energy
If we can send a man to the moon, we can ensure the viability of essential resources – such as energy and water – in an unpredictable future affected by climate change.
A recent report released by the U.S. Department of Energy (DOE), The Water-Energy Nexus: Challenges and Opportunities, attempts to plan for this uncertainty by providing a landmark review of the US energy-water nexus – the first report of its kind from DOE.
Although there were many compelling findings in this 250-plus page report, for me there were two compelling themes worth noting: 1) energy and water are fundamentally intertwined, but so is land in this nexus, and 2) the Federal Government has an important role to play in providing support and leadership to the entities that govern these resources so that they may begin planning for the effects of climate change more holistically and collaboratively.
The energy, water…and land nexus
The DOE report affirms that the energy and water sectors are highly interconnected, but it also sheds light on a third component that’s becoming increasingly difficult to isolate from the energy-water nexus: land. Read More
Also posted in Clean Energy
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WaterFX can turn virtually any water source into clean, drinkable water. And all they need is a sunny day.
This is great news for drought-stricken states like California and Texas, where water is becoming an increasingly scarce resource. In Central California, for example, the drought has essentially cut off thousands of farmers this year; they have no water, and their land now lays fallow.
Part of what’s draining this precious resource is our energy use. Taking into account the acquisition, treatment, and movement required to ensure water comes out the faucet when we turn it on, it is no surprise that water is among the country’s greatest users of electricity. Read More
Source: Argonne National Library
The energy-water nexus has been gaining traction around the globe, including serving as the theme to this year’s World Water Day, and now we are finally seeing some movement on Capitol Hill.
In January, Senators Lisa Murkowski (R-Alaska) and Ron Wyden (D-Oregon) introduced S. 1971, the Nexus of Energy and Water for Sustainability Act of 2014, or NEWS Act of 2014. Foremost, the bill would establish an interagency coordination committee focused on the nexus between energy and water production, use, and efficiency. The NEWS Act of 2014 also proposes a cross-cutting budget mechanism to allow policymakers to see where funding is needed across various energy-water initiatives.
While the bill faces a particularly steep slope to passage (7% compared to an average overall 11% passage rate, according to GovTrack, a government transparency tracker), that it has been introduced at all is the first sign of a more comprehensive approach to the energy-water nexus at the highest levels. Read More
Source: Prodes Project
As drought continues to grip Texas and many other Western states, one of the solutions often discussed (and pursued) to overcome water scarcity is desalination. Simply put, desalination, or desal as it is most commonly called, is a process that removes salt and other minerals from salty (brackish) or seawater to produce freshwater for drinking and agriculture. This technology seems like a no-brainer option for addressing the state’s water woes, but the problem is that desalination uses a lot of electricity and the majority of Texas’ electricity comes from coal and gas power plants, which require copious amounts of water to generate that electricity. It doesn’t make much sense to use water to make water, especially when there’s an alternative in Texas’ abundant renewable energy resources.
Texas is the national leader in wind energy and has the greatest solar energy potential in the U.S., yet neither of these resources are being widely deployed for desal plants despite recent studies pointing to vast opportunities. Not only do these energy resources produce negligible carbon emissions, but they also consume little to no water, unlike fossil-fueled power plants. Furthermore, if we look at where brackish water sources are located compared to where the wind and solar energy potential is in this state, the overlap is pretty clear. This synergy should not be ignored. Read More
Source: Jack Newton
It may seem like only yesterday that Texans were asked to conserve water after another scorching summer, but in reality it was four, dry years ago. The drought, which began in 2010 after La Niña altered sea level temperatures in the Pacific, continues to persist in the Lone Star State and promises to surpass the state’s record-setting multi-year drought from the 1950s. Ranchers have been forced to sell off cattle, town water supplies continue to go dry, and power plants struggle to provide a reliable supply of electricity due to water scarcity and long stretches of hot weather. Given these bleak conditions, it should not come as a surprise that 70 percent of Texans believe global warming is happening—and 52 percent said they have personally experienced the effects of global warming.
An all-star team of producers, including James Cameron, Jerry Weintraub and Arnold Schwarzenegger, intends to bring the Texas drought home to millions of televisions across the nation in the Years of Living Dangerously series premiering Sunday. Through this series, a host of celebrities, activists and journalists share the stories of those impacted most by our changing climate and what’s being done to save our planet. What is clear right now, in Texas and beyond, is that as climate change intensifies, we must adapt to more extreme weather conditions and make resilient changes that mitigate further stress. Read More
The energy-water nexus is gaining traction with diverse stakeholders around the world and it is becoming increasingly clear that we cannot plan for our planet’s future if we do not consider energy and water together.
Most recently, the United Nations celebrated World Water Day, launching a yearlong effort to highlight the global energy-water nexus, the chosen theme for 2014. In honor of World Water Day, the International Energy Agency (IEA) released its annual World Energy Outlook report, the first analysis of its kind to look at the impacts of water scarcity on the global energy sector. This signals a big step in the global understanding of the importance of the energy-water nexus, and reveals important insights on how regions, nations, and industries must cope with less water in a changing climate. Read More
Source: UN Water
The theme of this year’s World Water Day on March 22nd is the “energy-water nexus,” and the timing couldn't be better. According to the United Nations (who first established World Water Day in 1993):
- 780 million people worldwide lack access to safe drinking water.
- 1.3 billion people worldwide lack access to electricity.
- 90 percent of the power generation in the world comes from water-intensive fossil fuels.
- As countries progress and develop, there is an increased risk of conflict between power generators, other water users, and environmental concerns.
- By 2035, global water withdrawals for energy are predicted to increase by 20 percent, and water consumption for energy is expected to increase by 85 percent.
For the past year, I’ve been trying to bring awareness to the connection between energy and water in Texas, but this issue is much bigger than a single state. Energy and water are both basic components of life and economic progress, and they are also inextricably linked. Energy is used to secure, deliver, treat, and distribute water, while water is used (and often degraded) to develop, process and deliver energy. Read More
Energy and water, two of our most important global resources, are inextricably linked. And yet when it comes to planning, the regulatory agencies in charge of managing these precious resources are often separate and uncoordinated in their decision-making. With the World Bank’s recent unveiling of its Thirsty Energy initiative, it seems that the energy-water nexus is finally being taken seriously- and on a global scale.
This new initiative aims to address the interconnection between energy and water head-on by providing countries with “assessment tools and management frameworks” to help governments “coordinate decision-making” when planning for future energy and water infrastructure. Fortunately, this kind of guidance couldn’t come soon enough. Here’s a cool infographic from the Thirsty Energy website to illustrate where we are and where we’re headed: Read More
This commentary originally appeared on our EDF Voices blog.
It’s no secret that electricity generation requires substantial amounts of water, and different energy sources require varying amounts of water. Nor is it a surprise that Texas and other areas in the West and Southwest are in the midst of a persistent drought. Given these realities, it is surprising that water scarcity is largely absent from the debate over which energy sources are going to be the most reliable in our energy future.
Recent media coverage has been quick to pin the challenge of reliability as one that only applies to renewables. The logic goes something like this: if the sun doesn’t shine or the wind doesn’t blow, we won’t have electricity, making these energy sources unreliable. But if we don’t have reliable access to abundant water resources to produce, move and manage energy that comes from water-intensive energy resources like fossil fuels, this argument against the intermittency of renewables becomes moot.
Moving forward into an uncertain energy future, the water intensity of a particular electricity source should be taken into consideration as a matter of course. Read More
In the past, I’ve written a lot about the inherent connection between energy and water use and the need for co-management of energy-water planning. Most of the energy we use requires copious amounts of water to produce, and most of the water we use requires a considerable amount of energy to treat and transport. Despite this inherent connection, it’s actually uncommon to see energy and water utilities collaborating to identify best practices to save energy and water and even lower costs. Think of it this way: If energy and water utilities worked together, their unique perspectives could uncover joint cost-saving solutions, customers would save more money and utilities could share data to better understand their holistic energy-water footprint.
Identifying why there is a lack of collaboration and how to overcome these barriers was the motivation behind the American Council for an Energy-Efficient Economy’s (ACEEE’s) recent report. The report goes beyond citing discrepancies, though, and provides solutions for energy and water utilities to create better, more resource-efficient programs for themselves and their customers.
The report highlights a number of ways U.S. energy and water utilities have collaborated to identify mutually-beneficial energy and water savings. It lists successful energy and water utility programs from a variety of different sectors, including residential, commercial, industrial, agricultural and municipal. Read More