6 LoRa Alliance
®
The capital expense of hardware and installation is amortized over a much longer
service life, and ongoing operational expenses are a fraction of what they would be with
battery-powered devices (since technicians aren't constantly rolling trucks to replace
batteries). The total cost of ownership per year drops significantly, making the business
case even more attractive[3]. Essentially, energy harvesting ensures that the value of
the initial capital investment is preserved and extended over time, rather than having
that value erode quickly due to battery failures or maintenance costs.
From both a technical and business perspective, energy-harvesting devices create
compounding benefits:
Maintenance-Free Operation: By drawing power from ambient sources like
sunlight, devices can run for years without manual intervention, greatly reducing
labor costs and system downtime[2][3]. This is especially important for large-scale
deployments or sensors in hard-to-reach places (ceilings, industrial sites, rural
areas) where frequent maintenance is impractical.
Extended Device Lifespan: With no finite battery to limit service life, sensors can
reliably operate 10+ years under proper conditions[10]. This longevity means the
devices remain useful far longer, allowing organizations to maximize the return on
capital and treat the network as a long-lived asset.
Lower Total Cost of Ownership: Although the upfront cost is slightly higher for
solar-enabled devices, the overall TCO is markedly lower when factoring in saved
maintenance, fewer replacements, and less downtime[3]. As deployments scale to
hundreds or thousands of sensors, these savings multiply, often dwarfing the initial
cost of the hardware.
Sustainability and Compliance: Eliminating disposable batteries aligns with
corporate sustainability goals and helps meet regulatory requirements on electronic
waste and carbon footprint[13]. Using renewable energy sources also supports
carbon-reduction targets and environmental reporting.
These benefits illustrate why the industry is moving decisively toward battery-free or
hybrid energy solutions for IoT[14]. There is, practically speaking, "no reason why
devices need to be powered by disposable batteries" for most use cases, as one
