“Do the upcoming standards mean residential lighting programs will no longer be cost-effective? Or can programs gain another year or two of savings by promoting efficient light bulbs, which have long been the mainstay of residential program portfolios? These questions are at the forefront of utility program planning and regulatory agendas in many states. We find that for 2019, utility programs can achieve savings in most states by continuing to run programs for the full range of LED lamps. But the picture is more complicated for 2020 and 2021, and regional differences will also matter.”
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