Member Since May 5, 2008
Sustainable Energy for healthy grandchildren
About EnergyFred:

Broad based techie, Started in Electrical Engineering & Physics applied to Neurophysiology and BioPhysics, major career thrust was software development at the hardware-software interface, including embedded systems.  Now extremely interested in energy for the future.  See www.modular-e.com for downloadable energy resources/references.


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Answered: Is wattage directly cumulative in lighting?

The wattage would be identical but add the number of Lumens for each bulb to get the actual usable light output. Note that compact flourescents(CFL) and LED bulbs will produce more light than ...

Answered: Does the ac voltage from the PV system add to ...

Feeding the grid is like charging a battery, You supply a slightly higher voltage so that energy is supplied to the grid instead of taking energy out of the grid. Since the grid is typically AC the ...

Answered: What is the most energy-efficient portable air ...

If you can ship an air conditioner then consider taking some PV panels, and an inverter so that you have a small amount (100 - 200W) of reliable power. That way you could count on having power for a ...

Answered: More energy efficient: In well-used room, keeps ...

The typical maximum power that can be pulled from your socket is 1800 watts during turnon of a grid connected device. If your CFL is 20 Watts continuous then for energy consumption your breakeven ...

Answered: Roofing

The whole point is to increase the reflectivity of the roof in both the visual and infra-red portions of the sun's spectrum. That alone provides a cooler roof and attic. This is why the application ...

Answered: Build your own solar panel - diy, homemade power?

If you mean a Solar PV system as opposed to making the cells and wiring and packaging them together yhen the answer is definitely yes. If you could provide more information on what you would like to ...

Answered: Gas Taxes to promote energy efficiency

I would like to see a renewable energy tax of about $0.60 /gallon or about 10 cents per pound of fuel. This would be a start for long term sustainability funding and less painful than our seasonal ...

Answered: 4,6-dinitro-2-methylphenol We tested a facility ...

The allowable concentration of this compound is about .2 PPM ( .2 mg/1.3 /m^3) in air. What you have is 27 mg / kg in the concentrated dust or 27/1.293 mg / m^3 air. http://environmentalchemistry ...

Answered: How long does it take to count 700 billion dollars ...

If you had enough $100 bills, and counted on the average of 1 bill / second then it would take about 222 Years counting continuously to count all 7 billion bills. There are 365.24 days each year and ...

Answered: Unemployment

If you have been treating yourself as an employee with the requisite federal and state filings and paying state unemployment insurance then you should be able to collect.

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