After a couple of hours wondering I found myself near the oil-fired power plant in Havana. As in the U.S., many of these old plants have beautiful architecture so I got as close as I could.
Workers were replacing tubular air pre-heater modules and the old sections were being cut up on the ground.
New modules and duct-work were placed where the crane could pick them up.
I wanted to get a few images of the workers hanging on the side of the boiler house, but numerous security guards waved me away.