Telecom Site Power: Solar-Hybrid, Rectifier and Backup
Twenty years of telecom energy engineering behind every cabinet. Outdoor −48 V DC systems, solar-hybrid containers and lithium retrofit kits for BTS, microwave and edge sites.
−48 V DC · IP55 outdoor · Solar-ready · Remote monitoring · Anti-theft design
Why Telecom Sites Are a Different Problem
A telecom site is not a small version of a commercial building. It runs on DC, it sits somewhere a truck cannot easily reach, and the person who maintains it visits once a quarter at best. Every design decision follows from that.
DC, Not AC
Rectifier banks at −48 V DC feed the radio directly. Converting to AC and back costs you 8–12% round-trip and adds a failure point.
Fuel Is the Real Cost
A remote off-grid BTS in West Africa burns 8,000–15,000 litres a year. Logistics and theft often cost more than the diesel itself.
Nobody Is On Site
Design for a quarterly visit, not a daily one. Remote monitoring, wide temperature tolerance and anti-theft fasteners are not optional.
Loads Are Predictable
A BTS draws a near-constant 1–4 kW with a known peak. That makes sizing straightforward — and makes solar-hybrid payback calculable.
Three Ways We Solve It
| Approach | What we supply | Best for |
|---|---|---|
| Solar-hybrid container | 20 ft ISO container, 25–30 kW PV input, 40–50 kWh LFP, −48 V rectifier bank, 15 kW genset input, remote monitoring | Off-grid or unreliable-grid BTS sites with 2–4 kW average load |
| Outdoor DC cabinet | HJ-SG-D02 series, IP55, integrated rectifier + lithium + controller, pole or pad mounted | Urban and suburban sites where a container will not fit or will not be permitted |
| Lithium retrofit | Drop-in LFP replacement for existing lead-acid banks, same footprint, same voltage window | Sites with working rectifiers and aging VRLA banks |
What We Ask Before We Quote
- Site location and grid status (on-grid / unreliable / fully off-grid)
- Average and peak DC load in amperes, or radio count and model
- Existing backup autonomy requirement in hours
- Diesel price per litre and annual generator runtime, if a genset exists
- Ambient temperature range and whether the site is air-conditioned
- Available footprint and whether a crane can reach the site
Send those six data points and we return a sized configuration, a bill of materials and a budget price. No registration, no sales call first.
Send Us Your Site List
Even a spreadsheet with site name, load and grid status is enough to start. Ten sites or a thousand, the process is the same.
Explore the Product Line
- 20 ft Solar-Hybrid Telecom Container — HJ-SG-R01-20 / R01-10
- Outdoor DC Power Cabinet — HJ-SG-D02-01 / D02-02
- Solution: cutting diesel at BTS sites