Try always to start building plant as soon as the game begins. Then let the plant produce construction robots - let's say three or four immediatly.
An production plant don't take much energy or metal to produce. After producing it, start producing wind-mills for energy (these are "cheaper" to produce than solar energy) and metal subtractors.
Use the robots produce to make both energy and metalsubtractors in addition to weapens. HINT: Metal converters (from energy) consumes 60 energy.
Therefor build at least 3 wind-mills for each metal converter to get an coordinated energy and metal production.
Added by: RealTouch , ID#3004