How to optimise solar panel arrays to harvest maximum energy?

_{Quote: Solar panels are becoming more affordable, but unfortunately the land and roof space needed for them is not. In order to maximize efficiency and keep costs low, it's important to understand how to optimize solar panel placement in an array. In experiments, the concept presented here can more than triple output for a given area. Data shows an increase in output of 670%. That means if you have 100 square feet of space for solar panels, you can go from 1kW to 6.7kW of output power. And it only scales up from there. End quote} 

_{https://www.designnews.com/gadget-freak/how-optimize-your-solar-panel-array/79666661959081?ADTRK=UBM&elq_mid=4837&elq_cid=1069623}