Category Archives: Uncategorized

Start Your Engines, New Funding Available in Texas for Newer, Cleaner Vehicles

By: Christina Wolfe, EDF's Ports & Transportation Analyst

Delivery trucks, wheel-loaders, school buses, and locomotives all have one thing in common – an internal combustion engine that keeps these machines churning for years. Maybe for too many years. The useful life for some of these engines, especially diesel engines, can last decades, deterring owners from upgrading to newer models with greater fuel economy and operational efficiency. Plus, these machines can be very expensive, making it difficult for owners to replace older equipment once the newest, cleanest technology becomes available. From an environmental perspective, this is bad news. Engines emit a variety of dangerous pollutants that adversely affect our health, including particulate matter (PM) and nitrogen oxides (NOx). So without the means to upgrade polluting, heavy-duty engines, what can owners do?

Enter the U.S. Environmental Protection Agency (EPA) and the Texas Commission on Environmental Quality’s Texas Emissions Reduction Plan (TERP).

First, EPA established more protective emissions standards that require new engines to be many times cleaner compared to older models. These strong standards have helped drive innovations in engine technology so that emissions are now a fraction of what they once were. Here’s a breakdown: Read More »

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Fact Check: Wind’s Integration Costs Are Lower than Those for Other Energy Sources

This content originally appeared on AWEA’s Into the Wind Blog.

By: Michael Goggin

AWEA Into the WindsThe cost of reliably integrating large conventional power plants onto the power system in Texas is more than 17 times larger than the cost of reliably integrating wind energy, based on new AWEA analysis of data from the state’s independent power grid operator.

This analysis rebuts one of the most widely-held misconceptions about how wind energy is reliably integrated onto the power system. While it is true that wind energy’s variability does slightly increase the need for the balancing reserves that grid operators use to keep supply and demand in balance, all forms of energy impose integration costs on the power system. (pages 11-16). Read More »

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