2026 Green Powered Challenge: Supercapacitor Enables High-Power IoT
Nelectra has developed a high-power capacitor-based IoT system to address the limitations of battery-powered devices in off-grid applications. This system utilizes supercapacitors, which can deliver bursts of power for short tasks while maintaining a charge for several days. The goal is to enable maintenance-free systems for applications like irrigation control and remote switching without relying on traditional batteries.
- ▪Nelectra's system is designed for off-grid applications requiring short bursts of power.
- ▪Supercapacitors can tolerate lower voltages and extreme temperatures better than batteries.
- ▪The device can hold a charge for up to six days in deep sleep mode and three days in real-world applications.
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| Original publisher | Hackaday |
| Canonical URL | https://hackaday.com/2026/04/28/2026-green-powered-challenge-supercapacitor-enables-high-power-iot/ |
| Publication time | Tue, 28 Apr 2026 18:30:20 +0000 |
| Retrieval time | 2026-04-28T18:31:49.574Z |
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2026 Green Powered Challenge: Supercapacitor Enables High-Power IoT 3 Comments by: Bryan Cockfield April 28, 2026 Title: Copy Short Link: Copy With all the battery technologies and modern low-current sleep modes in most microcontrollers, running a sensor and microcontroller combo off-grid and far away from any infrastructure is usually not too difficult a task. Often these sorts of systems can go years without maintenance or interaction. But for something that still has to be off-grid but needs to do some amount of work every now and then like actuating a solenoid or quickly turning a servo, these battery-based systems can quickly run out of juice. To solve that problem, [Nelectra] has come up with this high-power capacitor-based IoT system.
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