Alternative Energy Companies Washington DC

See below for alternative energy companies in Washington, DC and gain access to solar thermal energy, hydro electric energy, biogas, biofuel, wind power, geothermal energy, and renewable energy technologies, as well as advice and content on renewal resources.

Federal Energy Regulatory Commission
(202) 357-8800
Washington, DC
 
Federal Energy Regulatory Commission
(202) 502-8200
888 1st St NE
Washington, DC
 
Federal Energy Regulatory Commission
(202) 357-8383
Washington, DC
 
Brown Williams Scarbrough & Quinn Inc
(202) 775-8994
750 17th St NW Ste 400
Washington, DC
 
Federal Energy Regulatory Commission
(202) 208-0300
Washington, DC
 
Federal Energy Regulatory Commission
(202) 502-6157
Washington, DC
 
Federal Energy Regulatory Commission
(202) 502-8702
Washington, DC
 
Federal Energy Regulatory Commission
(202) 502-8000
Washington, DC
 
Federal Energy Regulatory Commission
(202) 357-8100
Washington, DC
 
Energy Resources International
(202) 464-4144
1015 18th St NW Ste 650
Washington, DC
 

Alternative Energy Systems: Size and Cost

You need to decide how much of your energy you want supplied by your solar electric system. If you want to be entirely independent, you will have to buy a large solar PV array. The same goes if you want to provide the bulk of power to your home: a large solar panel array will be needed.

Step 1: Energy usage

Our handy solar calculator will help you determine your needs.

As you calculate, also consider the following factors:

  • Does your weekly energy usage change? Do you use more on weekends? In the case of a cabin or cottage, you may be able to store energy during the full week.
  • Does your seasonal energy usage change? Do you use more in summer or winter?
  • How much energy variation is there within a day? How about from one day to the next? Energy usage per appliance may vary widely.

Step 2: Solar energy availability

Determine the number of full sun hours in your area. This varies seasonally, of course, and you can find handy data for your area using a solar insulation map or chart.

Step 3:

Both of these figures will be rendered in watts or watt hours or kilowatt hours (kWh). Divide the figure from step 1 (the number of watt hours) by the figure in step 2 (the number of hours of available sunlight). This will tell you the amount of wattage needed.

Medium sized solar panels have a standard wattage of 50 watts. A large panel (about 10 feet2) will render about 190 watts.

Regardless of how independent you want to be, you should have a certif...

Click here to read more from The Solar Guide

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