For factories in Ulaanbaatar, energy cost and reliable supply remain the two biggest headaches. Let's look at one example of how rooftop solar (PV) and battery storage (BESS) can address both.
The figures in this article are a general illustration, not specific project advice. Real numbers come from an engineering assessment.
Starting conditions
- A factory with high daytime load, running a 5-day week
- A flat roof with roughly 1,500 m² of usable area
- High tariff cost during peak-load periods
Why solar and storage go together
Solar on its own delivers energy during daylight hours but does not fully cover the evening peak. Adding battery storage lets you:
- Store surplus daytime energy for use in the evening.
- Cut peak-load tariff costs.
- Provide backup power for short interruptions.
Payback period
The payback of such a project depends on the tariff structure, financing terms and the share of self-consumption. In general, the higher your self-consumption, the faster the returns.
What to see at Narlag Mongol
The forum's "Solar energy & battery storage" session features real case studies of projects like this, and the B2B meetings let you talk to suppliers directly.