Glossary
Eigenverbrauch
Also known as: Self-consumption, Self-consumption ratio, Eigenverbrauchsquote
Eigenverbrauch is the Swiss term for self-consumption: the share of solar electricity a business uses directly on site instead of feeding it into the grid. It is the central value driver of a PV system, because self-consumed electricity replaces grid purchases at 20 to 35 Rp./kWh while feed-in earns only 5 to 12 Rp./kWh. Unoptimised systems reach 30 to 40 percent; with battery storage and a ZEV, 70 to 90 percent is achievable.
The gap between the feed-in tariff and avoided grid purchases makes self-consumption the most important economic parameter of any commercial solar installation. Every kilowatt-hour that flows into your own operations instead of the grid is worth several times more.
Four levers raise the ratio: battery storage shifts solar electricity into the evening and night hours, load shifting moves flexible consumers into the midday peak, an energy management system coordinates both automatically, and a ZEV extends the circle of consumers beyond your own operation.
How the four levers work together: Self-consumption from 30% to 90%.