Oil companies have been squashing the alternative energy competition since the advent of natural resources..by any means necessary..on all levels.
Some states and/or certain cities have utilized other energy sources and of course,other countries-Iceland is a prime example,but the bulk of the world is still dominated by fossil fuel sources.
There is more than enough technology & options in alternate energy,which provide all the power this world will ever need,but the oil companies do not want you to know this...however though,more & more people are aware of this these days,but it won't change a thing,as the oil companies have entirely too much political clout behind them,as well as enough capitol to bribe the governments of the world to continue using fossil fuels.
All this being said,I think it's ludicrous to worry about how much energy your studio equipment is using.
If you really want to contribute to a cleaner environment,you'll really have to make some drastic changes in just about every aspect of your lifestyle,assuming you have the means & the resources to do so...and how many of us are willing to turn our lives upside down and who among us can afford to do this financially?
Some people in my country are very proactive in this regard,but these people are moving into remote areas of this country & building they're own homes,which include solar panels,propane tanks,windmills & so forth....
For most people though,this is not a practical & economically viable option,because the materials & finding builders with the technological knowledge,is just too expensive,to say the least.
Some years ago...something like 20 years ago in my country,there was a nation-wide campaign to have all shopping malls closed on Sundays,in an effort to conserve energy....which of course,was not received well by anyone...hmmm what a surprise.
Another thing to consider also,is the method & materials used in the manufacturing of your studio equipment and how it's pollutants impact the environment...incidentally,this is why one of Clavia's product's was discontinued this very reason.
Some people are under the delusion that an all electric car is good for the environment...yes,in terms of the exclusion of fossil fuels-okay,but these vehicles are heavily dependent on car batteries,which increases the consumption of these batteries and then-what do you do with all of these used,surplus batteries?How do you dispose of so many properly?
There is also the issue of using a considerable amount more of house electricity to charge the batteries,which in turn,ends up using more fossil fuel,which is what powers the generators at the power plants.
If you really want to make a difference in watt consumption in your home,without having to sacrifice the amount of studio equipment you have,start with replacing all of your lightbulbs in your home with fluorescent ones,buy an energy efficient refrigerator & if you do not already have one(s),go with an LCD television,rather than a conventional picture tube,or a Plasma one and you'll save p-l-e-n-t-y of watts every month that way.
I replaced every single lightbulb throughout my apartment with fluorescent bulbs and I estimated that I am saving 525 watts,just by merely doing this.
I have not read the article you're referring to,but my guess is that whoever wrote the article & included it in the magazine,is most likely doing it for the posterity of the magazine or website..meaning that they have chosen a topic that is a fairly big issue & trend these days and they're looking to draw in more of the public to promote their magazine/website.
Just some food for thought...
-Thom