In upper-middle-class suburbs on the East Coast, the newest must-have isn’t a $7,500 Sub-Zero refrigerator. It’s a standby generator that automatically flips on backup power to an entire house when the electrical grid goes out.

In part, that’s a legacy of Hurricane Sandy. Such a system can cost well over $10,000, but many families are fed up with losing power again and again.

(A month ago, I would have written more snarkily about residential generators. But then we lost power for 12 days after Sandy — and that was our third extended power outage in four years. Now I’m feeling less snarky than jealous!)

More broadly, the lust for generators is a reflection of our antiquated electrical grid and failure to address climate change. The American Society of Civil Engineers gave our grid, prone to bottlenecks and blackouts, a grade of D+ in 2009.