1. Side-by-side comparison
| ENEGRIN BESS | Diesel generator | Industrial UPS | |
|---|---|---|---|
| Lowers the electricity bill every month | Yes | No | No |
| Backup during outages | Yes, all of it or only part, depending on sizing | Yes, starts in seconds | Critical loads only |
| Autonomy | Typically 2 hours at full discharge | As long as there is fuel | Minutes |
| Improves power factor | Yes | No | No |
| Fuel and emissions on site | No | Yes | No |
| Pays for itself out of the savings | Yes | No | No |
2. When does a BESS make sense?
When you want backup and savings from the same equipment: the BESS lowers the bill, improves the power factor and, during an outage, takes the load with automatic transfer. A BESS can be sized to back up your whole plant or only part of it. Typical autonomy is 2 hours at full discharge, and it is set when the system is sized.
3. When does a diesel generator make sense?
When you need backup for many hours. It runs as long as there is fuel and starts in seconds. It does not lower the bill or improve the power factor, and it burns fuel on your site, with the emissions that come with it.
4. When does a UPS make sense?
For critical loads that only need minutes of backup. A UPS does not back up the whole plant or lower the bill.
5. How does the BESS protect your equipment?
In normal operation, the system monitors the grid. If there is a severe voltage deviation or a phase failure, it disconnects from the grid automatically and supplies power from the system. When it runs isolated from the grid (island mode), it regulates voltage and frequency.
Use the Ollin Simulator to estimate what a BESS would save your plant.
The simulator asks you to create an account with your company email. Actual savings are measured every month once the system is running at your plant.