In the past year or so, the cost of battery backup at the grid level began transitioning toward affordability. “They’ll be especially prevalent in the electric industry, as utilities and other companies use huge battery banks to help stabilize the electric grid and homeowners start pairing rooftop solar systems with batteries to store excess energy from the sun for nighttime use,” according to The Kiplinger Letter’s Tech Alerts e-newsletter. With three companies in the Palm Springs iHub — including Sac Tec Solar, Indy Power Systems, and EV Enterprises — and several local solar installers offering battery backup, Greater Palm Springs is well positioned to benefit economically from this pricing trend.