Battery storage
For independence and electricity-cost optimisation.
From home battery to industrial BESS from 2 MWh. We size, build and operate battery storage that maximises self-consumption, smooths peaks and enables grid services.
So arbeiten wir
How electricity becomes energy that stays
Needs analysis
We analyse your load profile at 15-minute resolution. From that comes the optimal storage capacity — not too small, not unnecessarily large.
System design
Choice of cell technology (LFP), inverter topology and control strategy. For industrial systems incl. grid-connection talks with the utility.
Installation & commissioning
Delivery, mounting, electrical connection, commissioning and start-up — by our own electrical and controls team.
Operation & optimisation
Live monitoring, firmware updates, continuous optimisation of charge/discharge profiles. For large storage: grid services and market trading.
Anwendungen
Three scales, one planning partner
Home battery
5 – 30 kWh
For single- and multi-family homes we mostly install the Huawei LUNA2000-21-S1 — 21 kWh LFP, combinable with the Huawei inverter from the same system.
- Huawei LUNA2000-21-S1 as standard
- LFP cells, 6,000+ cycles
- Optional with backup box
Commercial storage
100 kWh – 1 MWh
Peak shaving on high demand charges, self-consumption for commercial PV and backup for critical systems. We install Renepoly systems — scaled from 120 kWh to over 500 kWh.
- Renepoly EGS/ES series with LFP cells
- Load management for EV charging
- Integration into existing EMS
Large-scale BESS
from 2 MWh
Grid stabilisation, arbitrage, balancing energy marketing and backup for industrial large loads. Renepoly container BESS up to over 5 MWh per unit.
- Container BESS up to 5 MWh+, DC- or AC-coupled
- Pre-qualified for balancing markets
- Combinable with truck charging (720 kW DC)
Häufige Fragen
Battery storage — what you should know
Which cell technology does Bergler use?
Exclusively LFP (lithium iron phosphate). This chemistry is thermally stable, fire-safe, cobalt-free and delivers 6,000 – 10,000 cycles — equivalent to 15 – 25 years of typical use.
How big should my home battery be?
Rule of thumb for a single-family home: 1 kWh of storage per 1,000 kWh of yearly consumption. With 5,000 kWh yearly consumption, about 5 – 10 kWh storage. We calculate your individual profile so you don't oversize — pragmatic and honest.
Is a BESS worth it for my business?
Depends strongly on your demand charge. With high load peaks (typical for industry, workshops, EV charging) peak shaving can reduce energy costs by 15 – 30 %. We run a free analysis based on your load profiles from the past 12 months.
How does a utility-scale BESS become economical?
Revenue streams: balancing energy (primary/secondary/tertiary reserves), day-ahead arbitrage, self-consumption optimisation for industry, peak shaving. We typically structure business cases with 8 – 12 years payback.
What happens after 15 years?
LFP cells slowly lose capacity — after 15 years usually still 70 – 80 % available. The system keeps running. We replace individual modules if needed; the inverter system often stays in service for 25 years.
Your energy project still lives in your head?
We'd love to make it real with you. No hesitation needed — free initial consultation, transparent quote. We reach out personally and work out your offer together with you.