Linking LED (light emitting diode) streetlights to a smart grid control network adds another 20% efficiency gain. LED streetlights are estimated to be 50% more energy efficient than the High Intensity Discharge (HID) and High Pressure Sodium (HPS) streetlights currently in use in cities, other municipalities and roads across the US. Estimates also suggest that replacing the more than 100 million outdated streetlight, parking lot and exterior/interior lighting fixtures in the US with solid state LED lighting fixtures could save up to 189 terawatt-hours of electricity use–some 16 million households worth–and save $20 billion in electricity costs. Other gains include the CO2, sulfur and nitrogen oxide, and mercury emissions that would be avoided, and the jobs that would be created.
And one more additional step for smart grids to consider— combining hybrid solar/LED lighting operates more than 85% more efficiently than their HID counterparts.
Smart grids generally use electricity much more efficiently, and seeing as the current power grid in the U.S. cannot always sustain peak usage (blackouts in CA, TX, NY), the sheer provision of adequate power to light cities without the threat of unintended blackouts is always a plus. Additionally, as explained well above, smart grids will allow us to, “replace the low efficient light bulbs for LED bulbs with active smart grid interpreter to process commands from the grid. The bulb has additional functionality to be cost effective and consumer attractive.”
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