Last week the second annual IDTechEx Energy Harvesting & Storage USA 2010 event opened to 340 people and 28 exhibitors, up significantly from the previous year, indicative of the rising interest in the topic. The event was co-located with the IDTechEx Wireless Sensor Networks and RTLS conference, bringing together all those involved in these two industries.

Next week the second annual IDTechEx event "Energy Harvesting & Storage USA 2010" opens in Boston, USA. Since last year, the attendance has grown by 25% at this stage and there are a total of 28 exhibitors - compared to 20 last year.