Updated for 2011, this guide covers how to estimate, warranties and quantity discounts, an estimate form, design and engineering fees, service and installation hourly rates, a letter footage chart, and ...
The DOE says lighting accounts for more than 20% of all energy usage.
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As president of LED Lighting Technologies, Dr.Nisa Khan consults in the solid-state lighting industry and educates consumers about LED lighting. She has a bachelor’s degree in physics and mathematics, and master’s and Ph.D. degrees in electrical engineering. Email her at nisa.khan@iem-asset.com
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The energy challenge can be significantly surmounted by reducing energy consumption and adopting energy-efficient solutions in such areas as transportation, heating and air conditioning, refrigeration and lighting, and such media appliances as TVs, computers and more.
It’s not news that Washington and the news media customarily focus on energy use and related environmental challenges – but today’s momentous reality is BP’s massive oil spill in the Gulf of Mexico. Because the out-of-control spill and its related recovery costs will be counted in billions of dollars, routine environmental news has leaped to the front page. Albeit momentous, the spill fits alongside other critical, but less headlined, energy challenges, because energy conservation and its related costs have become the world’s most pressing economic and political concern.
Because I’m a scientist, columnist and investment adviser, I often research energy and technical related issues and their interrelated uses and costs. I can’t control an oil spill, but I can help LED lighting become more efficient and concurrently educate LED users so they make intelligent buying choices. Combined, these two aspects will help move the SSL industry forward and, in part, aid energy conservation.
The U.S. Dept. of Energy (DOE) says lighting accounts for more than 20% of all energy usage, both domestically and globally. A significant part of this 20% is industrial-lighting applications. For example, the most common commercial lighting unit, the T8 linear fluorescent lamp (LFL) tube is commonly arrayed in office and workplace ceilings. Typically, offices are lit with multi-lamped, 4-ft. long, T8-based luminaires while large stores and warehouses – and cabinet signs – are often illuminated with multi-lamped, 8-ft. long, T12-based luminaires.
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