Several recent letters to the editor, such as Mondays "Transmission lines will be obsolete," have called for solar panels on roofs as a way to "go green" without transmission power lines. With the more electric power generated at or near where it is used, there would be no need for those ugly poles and high voltage lines.

Transmission lines are obsolete -- Linda Grice

That may work in the desert Southwest, but not in Madison, because here we have trees and farmland. The rural areas grow food and the city streets are lined with trees. Most yards also have trees. In the summer, the tree leaves shade the houses, including the roof, which cools them and reduces the need for air conditioning. That also reduces the efficiency of solar collectors. In the winter, the sun is lower, days are shorter and roofs are covered with snow, especially in well-insulated houses.

If we are going reduce green house gas emissions with wind and solar, that means putting the turbines where the wind blows (the Great Plains) and the solar collectors where the sun shines (the Southwest).

Another option is nuclear.

Jim Blair, Madison

Capital W: Plug in to Wisconsin politics

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