SigenStack at Domaine Loup-Besson: solar energy available day and night

In Montmagny, Switzerland, Domaine Loup-Besson combines agricultural tradition with cutting-edge technology. To meet the high energy demand of tobacco drying, the estate reinforced its existing photovoltaic system with SigenStack — a storage solution that makes solar energy available even at night.

Project details

• Location: Domaine Loup-Besson, Montmagny (Switzerland)
• Activity: tobacco cultivation and drying
• Existing PV installation: 200 kW
• New configuration:
  • SigenStack inverter, 100 kW
  • 215 kWh of storage capacity
• Objective: use surplus solar energy to power the drying ovens at night

Site specifics

Tobacco drying requires a significant amount of energy concentrated over a three-month period. The leaves stay in the ovens for eight days, demanding continuous power day and night. Despite an efficient PV system, solar production alone couldn’t meet nighttime needs — making a reliable, properly sized storage solution essential for the agricultural cycle.

Our response

In collaboration with Kaufmann Construction, Solexis recommended integrating Sigenergy’s SigenStack, a solution perfectly aligned with the estate’s consumption patterns:

• Store excess daytime solar production
• Reuse this energy at night to power the ovens
• Maximise self-consumption without altering the existing PV setup

This project shows how modern technology can support a centuries-old craft. By combining photovoltaics and storage, Domaine Loup-Besson gains autonomy, reduces grid dependency, and secures the energy required for its seasonal activity — a successful balance between tradition and innovation.