Tag Archives: power lines

A visible reminder of above-ground (and buried) power lines

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I recently noticed what looks like plans to replace nearby poles for above-ground power lines:

I look forward to seeing the way these poles are replaced. I would guess that this does not happen very often and these poles need to stand straight through all kinds of weather to do their job and keep power moving. This transmission line running north-south down an important two lane road through residential areas clearly brings the power.

Seeing this also reminded me of something else: the relatively lack of visible power lines near where I live. This is not the case in other nearby places; older neighborhoods in my suburb have power lines on each street with an attachment to each single-family home. In contrast, most of the streets near me are unmarred by power lines. I primarily see buildings, grass, and roads without seeing power lines.

Additionally, we rarely experience power disruptions. Through rain, snow, and high winds, the power stays on. Presumably, the path our power takes the power plant to our house includes above-ground lines, supported by metal towers or wood poles. A few miles away is a major transmission line running north-south with its own right-of-way and lines several stories in the air.

When I do not see power lines, I rarely think about them. Or, I do not think about sewers that channel waste and water away from suburban homes unless something bad happens. Or, the wifi in the house silently disperses digital bits and I do not need to think about it.

The hidden infrastructure of our lives brings us much. I will watch for the replacement of the power line poles and then I will likely go back to not thinking about how the electricity that makes so much of modern life go around reaches me as much of the infrastructure is out of sight.

Limit power outages by burying power lines

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An editorial from USA Today argues for burying power lines in order to limit the effect of storms:

People served by buried lines have dramatically fewer outages, according to two studies by the Edison Electric Institute, which represents investor-owned utility companies.The idea is good enough that many American cities put most lines underground years ago, and lines for most new subdivisions are buried. Overall, though, roughly 80% of lines in the USA still hang overhead.

Such “undergrounding” of power lines can be pricey. But the figure opponents commonly cite — 10 times as expensive as stringing lines overhead — is misleading. The actual cost can be half that, or less, depending on local conditions and whether lines are buried when developments are built or when roads are being torn up anyway.

The best idea is to identify the lines most likely to get knocked down and begin by burying those. A study for Pepco, the underperforming Washington-area utility, found that while burying all lines would cost $5.8 billion and add a ridiculous $107 a month to customer bills for 30 years, burying just the most vulnerable lines would cost about one-sixth as much and prevent 65% of outages, a more reasonable tradeoff.

Even with a reduced figure for burying the power lines now, this serves as a reminder that the best time to bury the power lines would have been years ago when the developments were first built. Doing so after the fact costs more money and mars a lot of property while the burying is taking place. Putting the money into burying the lines in the first place saves a lot of hassle down the road (hence, different rules for newer developments).

An added bonus: having fewer overhead lines looks better. Imagine pristine residential or commercial streets without power lines and poles all over the place.