led archives - planet forward - 克罗地亚vs加拿大让球

flint water crisis: the solution could be in the plants

fri, 09 mar 2018 10:59:05 +0000

furina hygrometrica is a type of moss that absorbs large amounts of lead from water. the idea is that this type of moss can lead to cleaner water for cities like flint, michigan, and has the potential to have a large impact on the lives of the thousands affected by this polluted water epidemic.

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the hidden key

fri, 01 apr 2016 19:17:47 +0000

nature
wondrous, grand
giving, stunning, hurting
scarred from lifetimes of deep neglect
mother

cities
powerful, clout
bustling, swarming, living
responsible to change the world
impact

streetlights
bright, everywhere
shining, revealing, welcoming
needed but right now quite wasteful
misused

solar
gift, prevalent
powering, driving, innovating
our world needs to run on solar
future

to tell my story, i decided to write several cinquain formatted poems and string them together. my final product tells the story of a hurting world in which the key to survival is found in the power of cities. cities are powerful because of their sheer size and energy, but the innovation to drive our planet forward is much less noticeable: streetlights. traditional streetlights are vulnerable to natural disasters, powered by dirty fuel, and are inefficient (some estimates say traditional streetlights lose 40% of their light to the sky, as opposed to illuminating the ground).

meanwhile solar street lights are completely off the grid and are powered from totally renewable energy. all solar street lights use led light bulbs, which can be up to 70% more efficient. they are extremely resilient, continuing to work during natural disasters while anything connected to the grid is left inoperable. they can even offer a helping hand during these disasters because, if installed correctly, the light post can become a charging station for aid workers and vital equipment.

the simple beauty of solar street lights isn’t that they save money, conserve energy, emit less emissions, or their resilience. the simple beauty of solar street lights is that they are universal. they can be installed in a developed country to replace aging infrastructure or in a developing country in which traditional infrastructure has never existed. this inclusiveness is very rare to find in an innovation, which is why solar street lights could prove to be so important.

in order to properly repair the damage done to the natural environment, cities must use their influence and size to lead the sustainability movement. an integral part of this movement can be achieved through solar street lighting, which if powered by cities, will leave the world a little bit brighter than it was yesterday.

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mn2020: look who’s lighting up the holidays

fri, 24 may 2013 15:23:17 +0000

even though the economic downturn has hit minnesota electricians hard, they haven’t stopped giving back to the community. for five years, two local unions have donated their time and labor for the holiday lights in the park display. the annual exhibit uses around 100,000 high efficiency led bulbs, which helps keep down the fundraiser’s energy cost to about $20 per night.
all proceeds benefit local charities, including saint paul parks conservancy, second harvest heartland, underconstruction, and union gospel mission.

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streets light up in minneapolis‬

fri, 09 mar 2012 16:00:25 +0000

streetlights cost millions of dollars every year in energy bills and equipment upkeep. a new neighborhood initiative in the minnehaha-hiawatha community of minneapolis is testing a lighting system using led and induction technology to improve energy efficiency and diminish costs to taxpayers.

the minnehaha-hiawatha community is experimenting with 6 different led bulbs and 3 different types of induction lights both of which are high efficiency in order to measure which work best. this not only saves money from a decrease in electricity use but these new bulbs also last longer which means the city doesn’t have to pay a maintenance crew to go out and change the bulbs very often. this project saves money and the environment.

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led technology set to enlighten home energy consumers

wed, 29 jun 2011 09:00:14 +0000

incandescent light bulbs have been around since thomas edison, and they lose 80 percent of the electricity used to power them as heat waste. a new wave of efficient and technologically advanced light bulbs could change that by reducing energy demand (and utility bills).

in “the light bulb ban,” energynow! correspondent lee patrick sullivan visits the lightfair international trade show in philadelphia to find the latest offerings in energy efficient bulbs. he finds a 60-watt equivalent led bulb that will be the first in the world to sell for less than $20 and the first 100-watt equivalent led bulb to hit the market in october. he also finds out how led technology is expanding to bring us bulbs that can be dimmed and programmed with a tablet computer or smart phone and wireless sound throughout the home.

tom benton of the lighting science group, maker of the under $20 60-watt bulb, explains how led manufacturers are bringing costs down. brett sharenow of switch lighting, which makes the 100-watt equivalent, tells lee patrick that the switch bulb, as it’s called, is designed as a direct replacement for 100-watt incandescent bulbs and that consumers shouldn’t be able to tell the difference between the two – until they see their electric bills. the switch bulb lasts 15 years and uses just 15 percent of the electricity that an incandescent bulb would use, so it will probably pay for itself.

but even for those who prefer incandescent bulbs, the news isn’t all bad. martha delgado of bulbright industries, a halogen light bulb maker, explains how the government’s phaseout of inefficient light bulbs works, and why consumers will still be able to buy incandescent bulbs.

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