Selected tag(s): Desalination

Rounding up the Water, Clean Energy, and Climate Bills in the 85th Texas Legislative Session

We’re entering the home stretch of the 85th Session of the Texas Legislature.

Now past the Session’s midway point, legislators and advocates are working hard to ensure their bills cross the finish line. Here’s a look at which water, clean energy, and climate bills have been filed, including those we hope will rise to the top.

Water bills

In the 1930s, Texas meteorologist Isaac Klein reportedly said Texas is a land of eternal drought, interrupted occasionally by biblical floods. Luckily the state is in a relatively wet period: The majority of Texas is drought-free and just under half the state is in the lowest bracket of drought.

But Texans understand water should always be on our minds, so it’s no surprise there are dozens of water bills this Session. Read More »

Posted in Energy-Water Nexus, Legislation| Tagged | Leave a comment

Lowering Desalination’s Energy Footprint: Lessons from Israel

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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 Efficiency, Energy-Water Nexus| Also tagged | Comments are closed

Desalination can Help Solve our Water Woes, but not without Clean Energy

Source: Prodes Project

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 »

Posted in Drought, Energy-Water Nexus, Renewable Energy, Solar, Wind| Also tagged | Read 1 Response
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