Acknowledging that power demand in the US faces “anemic” growth prospects, chief executive Jim Rogers says that Duke – which is already investing in PV arrays – is also weighing its options with regard to residential PV.

“It is obviously a potential threat over the long term and an opportunity in the short term,” Rogers told Bloomberg.

“If the cost of solar panels keeps coming down, installation costs come down and if they combine solar with battery technology and a power-management system, then we have someone just using us for backup.”

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