About SIGMA BESS
SIGMA BESS is the brand under which Sofia Blockchain Capital Ltd supplies battery energy storage systems to businesses in Bulgaria and across Europe. We are an authorised distributor of FFD Power for the European markets.
What we do
We design, supply and commission battery energy storage systems (BESS) for factories, solar and hydro plants, EV charging sites and grid projects — from 233 kWh cabinets to 5 MWh containers. Every system is sized to the site's load, solar PV and grid connection.
Before you get a quote, you can see the numbers on real exchange prices: on this site every model is calculated on the hourly prices of the last 7 days, with the charge and discharge schedule set by our energy manager (Electro Manager).
How we work
Site review
Load profile or monthly bills, solar PV data and the connection point.
Sizing and quote
Configuration, single-line diagram, indicative price and a payback calculation.
Delivery and installation
Installation guidance for your contractor and support with the grid connection.
Commissioning and training
Commissioning, setting up the operating modes and training your team.
Why SIGMA BESS
Authorised FFD Power distributor
Cabinets and containers with LFP cells, liquid cooling and fire suppression, supplied directly by the manufacturers — with their technical support.
Numbers on real prices
We calculate earnings on the hourly exchange prices in Bulgaria, Romania, Portugal and Ukraine — not on averages.
Battery control
The energy manager sets the charge and discharge schedule from prices, load and solar PV so the battery delivers the most value.
We work with your contractor
We give the EPC contractor a single-line diagram, a project package and installation guidance, and take part in commissioning.
Experience
Before working under the SIGMA BESS brand, our team delivered projects in several European countries — from Finland to the Mediterranean, Ukraine and Bulgaria. Some of them are listed below.
Company details
Send your load profile and PV data — we return a configuration, a diagram and an indicative price.