Sunpower – the ‘Rolls-Royce’ of solar panels regain the ‘Most Efficient Panel’ Trophy.

It’s on for young and old in the battle for the prestigious title of the most efficient solar panel. For a number of weeks we’ve brought you commentaries on the remarkable breakthroughs achieved by Trina (here and here). Now Sunpower — the French-owned, US-based solar panel manufacturer — has stepped up to the plate with an announcement they have achieved a module efficiency rating of 22.8 percent for its X-Series solar panel. Another world record. [Read more…]