PV + battery
Modules and matched SmartStore storage sized to your daily load curve.
Solution
Self-Consumption Optimisation
Store daytime solar generation and use it when site demand is higher than PV output.
The challenge
Use more of what you generate
The economics of commercial solar now favour using your own generation over exporting it.
- Feed-in tariffs are low, so exported solar earns far less than the grid price you avoid by self-consuming.
- Daytime generation often exceeds daytime demand, creating surplus that is wasted without storage.
- Operations want a measurable cut in grid purchases, not just nameplate capacity.
How it works
How self-consumption optimisation works
Shift surplus daytime solar to the hours when your site actually needs it.
- 01
Generate
PV covers daytime loads directly — the cheapest possible kilowatt-hour.
- 02
Store surplus
Excess generation charges the battery instead of being exported.
- 03
Discharge on demand
Stored energy covers early-morning and evening demand, with 100% unbalanced output across phases.
- 04
Monitor
The HEMS reports self-consumption and self-sufficiency in real time.
Outcomes
System specifications
Up to 80% self-consumption rate
< 10 ms EPS / backup switching
100% unbalanced phase output
Product specifications are SAKETE SmartStore / Container series values. Project outcomes such as payback, self-consumption and demand-charge reduction depend on your site load profile, tariff and system sizing, and are confirmed in the project quote.
SAKETE scope
What SAKETE supplies
Hybrid inverter & HEMS
Deye, Growatt, Solis or GoodWe platform with smart energy management.
Commissioning
German team configures self-consumption logic and hands over reporting.
Project references
Deployed on real European C&I sites
Representative SAKETE storage projects in this application.
Eastern Europe 1.6 MW / 3.44 MWh
16 × 100 kW / 215 kWh · AC-coupled
Retrofit to an existing 10 MWp PV plant — ~1-year payback from price arbitrage.
Eastern Europe 875 kW / 1.827 MWh
7 × 125 kW / 261 kWh · AC-coupled
Retrofit to a 5 MWp PV plant — ~1-year payback from charging low and discharging high.
FAQ
Frequently asked
What self-consumption rate is realistic?
With correctly sized storage, commercial sites commonly reach 70–80% self-consumption. The exact figure depends on your load curve and PV-to-battery ratio.
Can I see the savings?
Yes. The HEMS reports self-consumption, self-sufficiency and grid draw so you can verify performance.
Does this work for shift operations?
Yes. Battery dispatch can be tuned to single, double or continuous-shift demand patterns.
Request a project-specific quote
Share your site profile and SAKETE returns a tailored quote from European stock — typically within 1–2 business days.