The Direct Current (DC) in any grid-connect system must be changed to AC and it's the inverter which handles the job. This clever bit of kit introduces a sine wave into the DC which matches the 50Hz AC found in your home and on the grid. A special requirement of the inverter is that it must automatically shut down the array in the event of a power cut in order to protect any engineers working 'downstream' on the grid, trying to solve the problem. This unsung hero of the PV system, frequently hidden away in the loft, gets little attention and simply gets on with its job, day after day after day.
Not featured individually on the MCS list, inverters nevertheless must carry an internationally recognised protocol known as G83. That certificate ensures the quality of the machine and qualifies your system for grants and FITs. The machines are reliable, easy to maintain and have generous warranties.
