Paul Martin Schwartz, co-founder and CEO of SenArch, talks about how solar-powered LoRaWAN gateways are filling the connectivity gaps that traditional infrastructure can’t reach. SenArch’s gateways are built to run reliably in extreme environments, with energy-optimized electronics and rugged AGM batteries that can operate for up to a month without sunlight. In this episode, Paul explains the engineering trade-offs behind battery and solar panel sizing, why AGM batteries outperform lithium in freezing temperatures, and how off-grid connectivity enables new IoT use cases worldwide.

• Choosing between 150-watt solar panels with 100 amp-hour batteries versus smaller 50-watt/22 amp-hour setups, depending on deployment location and climate
• Why AGM batteries are critical in cold regions where lithium batteries lose charging ability and risk permanent damage
• The role of Iridium low-power satellites as a backhaul option compared to Starlink, and how connectivity costs shape IoT deployments
• Hidden costs in LoRaWAN, particularly the challenges of radio planning and the need for additional gateways to achieve reliable coverage
• The importance of focusing on customer needs instead of competition, and why mission-critical networks demand over-specified, always-on infrastructure
• Water metering as one of the strongest business cases for LoRaWAN, with lower installation costs, faster rollouts, and significant efficiency gains for utilities

Paul highlights how SenArch’s gateways are being used from Europe to North America to close coverage gaps, support water monitoring, and enable smart city, climate resilience, and agricultural projects. His experience in telecom and IoT gives him a unique perspective on building sustainable networks that deliver real-world impact.

Links:

Paul Martin Schwartz

Senarch

• Helium Global IoT Coverage - Want to know if Helium coverage exists where you need it? Check out this map!
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• MeteoScientific Console - Use LoRaWAN - The MeteoScientific Console allows you to use LoRaWAN today. As long as you have Helium coverage (and you probably do, about 90% of populated areas in the world have a gateway within 2 miles), you can onboard a sensor. You can always check coverage at https://explorer.helium.com and switch to the "IoT" tab in the top right.