OFE were pretty fast and gave a detailed price for charger installation. They also were truthful regarding timeframe for carrying out the work (a wait was expected). However, he did arrive exactly as previously predicted and fitted a Zappi charger to a complicated battery solar system. In fact OFE were more concerned about the location of charger for aesthetic reasons than I was! It was fitted fast, quality workmanship, registered and summited paperwork directly to SEAI grant application. Totally recommend this installer luckily we have him in our location.