Then any Thin Client will do Wyse is but one maker there are many others.
If you want to use Green Electricity then you can invest in Wind and or Solar depending on your location or maybe even Hydro Power.
The only real way to cut down Electricity consumption is to reduce the number & size of the CPU's in use and the associated hardware so Single Core slower CPU's like the Atom Network Printers and recycled paper are the way to go.
If the budget stretches you can invest in some Solar Cells or Wind Turbines which can contribute to reducing your Power Consumption if this is possible.
Currently here domestic dwellings have solar panels on the roof and they generate power during the day and then during the night the house returns tot eh Electricity Grid for it's power requirements. This saves the needs for banks of batteries and depending on the Legal Situation where you are it may be possible to return any excess generated power to the grid where the Power Companies Pays you at the Rate of Green Power and this comes of the Power Bill. If the location permits Small Wind Turbines may also be used which can provide power whenever there is sufficient wind so you would not be limited to just day time use like you are with Solar Cells.
But here some dwellings have a negative Power Bill per billing period so they are effectively Carbon Negative when it comes to their Power Consumption. But of course depending on what is used to generate the Mains Power in your Location you may already be Carbon Neutral if it is Hydro or Nuclear there are no carbon emissions to speak of so these Power Generating Plants are considered as Environmentally Friendly over other means of Power Generation.
Though Nuclear Power has other problems not related to carbon. :)
Col
