Original sentence: Over a module's lifetime, the years of clean energy produced can potentially more than make up for this initial pollution.Where a building is at a considerable distance from the public electricity supply (or grid) - in remote or mountainous areas – PV may be the preferred possibility for generating electricity, or PV may be used together with wind, diesel generators and/or hydroelectric power
Edited sentence: Over a module's lifetime, the years of clean energy produced will more than make up for this initial pollution.Where a building is at a considerable distance from the public electricity supply (or grid) - in remote or mountainous areas – PV may be the only possibility for generating electricity, or PV may be used together with wind and/or hydroelectric power