Last spring I stood in a limestone quarry at six in the morning, watching a crane swing a brand-new “heavy-duty industrial” genset onto a …

Two years ago a buyer called me with two quotes on his desk. Both said 250 kVA. Both said diesel. One was $28,000. The other was $19,500 — thirty perc…

The call came at 10:40 on a Tuesday night. A contractor I’d sold a 500 kVA set to six months earlier, his voice flat in the way voices get when …