Nexleaf StoveTrace

Power characteristics:

– Power Source: 1x rechargeable and replaceable Li-Ion battery. Can be simultaneously plugged to solar panels for continuous charging.

– Power Life: 72 hours, or indefinitely if connected to solar panel AC power.

– Real Time Power Level Updates

– The device has a 750mAh battery. It takes a 5V DC input. Depending on the network quality, sampling configuration, and transmission configuration, the device can run anywhere from 2 days to 5 days without power. (More info)

Data Processing & Analysis:

– Backup data storage: Internal memory to store up to 5 years at 1-minute sampling interval.

– Data Transmission frequency: Once every 6 hours to every 24 hours.

– Cloud-Based Data Processing & Analysis Interface.

How does it work?:

– The StoveTrace system includes a mobile-phone-based temperature sensing application, a thermal sensor that connects to the mobile device and a web-based analytics dashboard. Each time the clean cookstove is fired up, the StoveTrace senses the cooking event via the temperature probe and stores and uploads cooking event data.

– The temperature data is wirelessly uploaded from the mobile phone to a central server via a wireless broadband network.

– The data collected includes the number of times a stove is used and the duration of each use, enabling remote verification of stove usage. This data can be used by carbon market investors as verification of reduction in carbon emissions.

– A web-based dashboard has been developed which shows the number of times the stove has been lit and duration of cooking.

Nexleaf provides remote and in-person technical support in addition to warranty services for replacement components. When organizations implement projects with their device, Nexleaf provides customer service and training on the device, dashboard use, and troubleshooting.^{Interview with representative}

3-year warranty on the device (excluding accessories)^{Interview with representative}

The expected lifetime of the device is 5 years. The estimated lifetime of the replaceable battery is 2 years. ^{Interview with representative}

An impact study conducted on 135 Households in the State of Odisha showed the following results:

– Average Daily Stove Usage was 1.14 hours

– 6.29% (of 135 households) were using stove more than 2 hours per day

– 65 tons of CO2 equivalent were displaced

– $388 earned

No listed hazards