The off-grid telecom tower problem
Mobile operators must build cell towers (BTS) in remote areas with no utility power — relying on diesel gensets 24/7, which brings problems:
- High diesel cost — plus the cost of hauling fuel to remote sites, the single biggest cost of a tower
- Outage = SLA breach — a genset failure means the tower goes down, signal is lost, and the uptime contract is breached instantly
- Batteries degrade fast — lead-acid batteries wear out quickly in the heat with heavy daily cycling
- Hard to service — with hundreds of sites, without remote monitoring you only learn of a failure when the signal drops
The solution: Solar + LFP Battery + Diesel Hybrid
A hybrid system for cell towers combines three energy sources with a telecom-standard control cabinet (48VDC):
- Solar (PV) — the main on-site daytime source, supplying the BTS and charging the battery
- LFP battery (48VDC) — supplies overnight and during outages; LiFePO4 tolerates heat and heavy cycling far longer than lead-acid
- Diesel genset (backup) — the controller starts it only when the battery needs topping up, cutting run-hours and fuel cost sharply
- 4G remote monitoring — reports every site's status remotely, catching issues before the signal drops
Why LFP (LiFePO4) suits cell towers
Cell towers sit in full sun and heat, with the battery cycled daily — so lead-acid batteries wear out fast and need frequent replacement.
LFP (Lithium Iron Phosphate) batteries tolerate heat and deep cycling far better — a long service life that cuts maintenance and the (costly) battery swaps at remote sites.
Real project: MTEL Myanmar, 134 sites
LEONICS designed and installed Solar Hybrid power for the cell towers of operator MTEL in Myanmar — 134 sites, covering 7 states/regions and 63 districts:
- Off-grid system: ~18.9 kWp PV + 38.4 kWh LFP per site (48VDC)
- Universal Control Cabinet + Battery Management (MBMS)
- Auto start/stop of the genset + 4G monitoring at every site
Who it's for
- Mobile operators / tower companies — with towers in off-grid areas or on unstable power
- Wanting to cut diesel costs, protect the uptime SLA, and manage hundreds of sites centrally
Frequently asked questions
How much diesel cost does this system save?
It depends on the solar/battery ratio to the tower load — solar supplies daytime and charges the battery, so the genset runs far less.How is an LFP battery different from lead-acid?
LFP tolerates heat and heavy use far longer, with a longer life that reduces battery swaps at remote sites.What if the tower is on utility power but it's unstable?
An on-grid configuration works too — the battery supplies during dips/outages, protecting the telecom equipment.Can I see every tower's status centrally?
Yes — every site reports over 4G, with status and alerts from a central point.Summary
Off-grid cell towers don't have to burn diesel 24/7 — a Solar + LFP Battery + Diesel hybrid cuts fuel, protects uptime, and manages every site over 4G, proven with MTEL's 134 sites in Myanmar.
See the details at Telecom Station Solutions or talk to the LEONICS engineering team.