StecaGrid 300 and 500 are inverters built in a modular design for simple installation. These are suitable for use in any solar power system for these units are capable of expansion due to their distribution over 3 phases. They are equipped as well with a single MPP tracker and can attain an optimum performance of up to 95.8%. StecaGrid 300 and 500 are available in 300 W and 500 W power rating, respectively.