thank you @wlad01...if anyone from Micropelt would be interested in presenting this technology at emerging technologies conference in Vancouver in July (www.cmoset.com) pls let me know, email@example.com
It depends on how large (how many peltier cells are connected) as each just generate 250uV and current is limited due to form factor. I've seen some people are using one of Micropelt product for a temperature gradient of 2C but it is in 0.1mW range.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.