Practical articles for installers and engineers, technology explainers and profiles of the manufacturers whose equipment is sold in Brazil.
Both generate electricity from sunlight, but cutting the cells in half changes efficiency, shading tolerance and durability. A direct comparison of the two module designs.
Two active faces: the front captures direct sunlight and the rear uses light reflected by the ground. Up to 30% more energy where the albedo is high — and less gain on an ordinary roof.
Simple payback ignores the time value of money; discounted payback does not. The inputs, the formulas, a worked example and the common mistakes that make a projection too optimistic.
A single silicon crystal or many fused crystals: the difference shows up in efficiency, area per kWp, appearance and price. Why monocrystalline now dominates the market.
Boron-doped P-type cells were the standard for decades; phosphorus-doped N-type cells (TOPCon, HJT, IBC) are more efficient and degrade less. Where the market is heading.
Three ways to convert and optimise the energy of a solar array, each with its own cost, shading behaviour and monitoring. When each one is the right choice.
An algorithm inside inverters and charge controllers that keeps the panels working at their point of maximum power, minute by minute, as light and temperature change.