I suppose it will take less energy, or it will at least be cleaner, to use a gas stove instead of an electric one because most electricity is generated by coal-fired power plants and gas releases far fewer toxins than coal does. Also, electricity costs a bit more than gas, but only by a few cents.
In any case, you may not want to buy an electric coffee maker for $30 so here is a solution that only costs $2 to $5.
First, you'll need to buy one of these fancy plastic coffee makers. I found mine in a grocery store.
Other than that, you need:
#2 coffee filters
a coffee cup
a tea kettle (or something to boil water in)
Step 1: Step 1
Step 2: Step 2
My electric coffee maker makes 10 cups and takes 2 scoops of coffee to fill the whole thing. So one cup of coffee is equivalent to 1/10 of two scoops of coffee or 1/5 of one scoop of coffee. That is a little bit complicated and I don't have a measuring spoon that small. So I just put 1 scoop of coffee in and store the grounds to make 4 cups of coffee later.
Step 3: Step 3
Now you can enjoy your fresh cupa joe!
And if you have some friends over, just move the coffee maker to a couple other cups.