Gas Wants To Kill the Wind

RABarnes writes "Scientific American has posted an article about the political efforts of natural gas and electric utilities to limit the growth of wind-generated electricity. Although several of the points raised by the utilities and carbon-based generators are valid, the basic driver behind their efforts is that wind-generation has now successfully penetrated the wholesale electricity market. Wind was okay until it became a meaningful competitor to the carbon dioxide-producing entities. Among the valid points raised by the carbon-based generators are concerns about how the cost of electricity transmission are allocated and how power quality can be improved (wind generation — from individual sites — is hopelessly variable). But there are fixes for all of the concerns raised by the carbon-based entities and in almost all cases they have been on the other side of the question in the past."

Comments

Re:Yet another conspiracy theory by idiots

[sribe]

In other words, all taxpayers get it in the shorts to pay for these shibboleths. Wind turbines, even under favorable circumstances, don't produce even enough power to manufacture wind turbines.

That hasn't been true for at least several years. Direct-drive generation + solid-state power electronics upped both efficiency and durability by wide margins.

Fortunately, wind and solar match certain loads.

[Ungrounded Lightning]

Wind and solar power have radically different properties with respect to the national grid, and you can't just plunk them in and go on.

Actually their properties are a good enough match for certain loads that, within appropriate fraction-of-total-grid-capacity limits, you CAN just plunk them in and go on. (Part of the concern is over the push to exceed those fractions.)

Solar and wind both vary wildly at a single-mill or roof-full-of-panels level. But spread them out over a few square miles (do individual clouds, gusts, and storm cells aren't the issue) and multiple sites separated by tens and hundreds of miles (so local weather timing also gets many distinct samples) and the rapid variations average out. They become at least as predictable as the weather - which is very predictable at a 3-day level.

Solar matches the air conditioning load pretty closely - though it leads it a tad. Wind does the same with a slight lag. complimenting solar. It also peaks in the afternoon (due to "lake effect" and tracks the general load peak very well.

Wind also has a component that tracks HVAC load well: Temperature differences drive both wind speeds and need to heat/cool to keep things comfy, while wind speeds drive heat loss-gain through insulation by air infiltration and conduction between surfaces and the air. So higher winds drive both higher geneeation and higher heating/cooling loads to consume the generated power.

So up to a point adding solar and especially wind to the grid - if it's spread out a bit - IMPROVES the grid's ability to handle the cyclic nature of the load and REDUCES the variability that you need to cover with "peaking plants". You still need to keep some other capacity on line to cover the variations. But you needed that anyhow: The load is almost totally UNcontrolled and can vary even more rapidly than the output of a wind farm as a storm cell passes through it. The name of the game is to match the two sides of this equation.