Smart Chap Case Study

Case Study Smart Chap
Installation: Rendsburg (Northern Germany), R. Röckendorf
Starting position:
• Annual electricity consumption: 2,700 kWh
power + 1,000 kWh for gas consumption
(hot water heating)
• No photovoltaic installation and no domestic
hot water pump
Convincing results:
• Reduction of electricity costs by 65%
• 500 € electricity cost savings in the first
year (increases annually due to rising
electricity costs)
• Self-sufficiency from Apr. to Sep.: ≥90%
• Annual electricity consumption new: 1,000
kWh incl. electricity for hot water
generation
(1,700 kWh of electricity saved)
• Gas savings: 1,000 kWh in addition
• Consumption of the heat pump: 700 kWh
(400 kWh by direct solar consumption and
300 kWh from the grid)
• 200 battery cycles within one year (5,000
guaranteed cycles)
• The result could be further improved by
means of expanded appliance
management
The operator says:
"I especially like the fact that I can produce my
warm water from mid-March to mid-October
CO2 neutrally only with solar energy. Bye Bye
CO2. So I use less gas and do something for
the environment. In addition to saving
electricity, I also reduce my gas bill by about
100 € per year."
Self-sufficiency:
Hardware used:
• Solar modules (8 kW)
• Orientation:
• 6 kWp South (10 degree roof pitch)
• 2 kWp West (30 degree roof pitch)
• Smart Chap Energy Manager
• BMZ battery 5 kWh
• Victron battery inverter
• SG-Ready domestic hot water pump
Successful test in the far north: 1 year