Family home Nyon — Air-source heat pump + 8 kWp PV

Context

The client came to us with an advanced brief: rising energy bills, end-of-life equipment, ambition for maximum autonomy. Our role: scope it technically, size it precisely, and coordinate everything.

The challenge

Combining two technologies (e.g. HP + PV) in an existing building demands attention: cross-sizing, load profiling, quality of grid connection. Without a system approach, two solutions can interfere with each other.

The deployed solution

• Air-source heat pump sized to actual heat loss.
• Photovoltaic installation optimized for self-consumption.

Measured outcomes

After 12 months of monitoring, the figures matched the simulation within ±5%. Exactly what the client expected: no empty promises, measured data.

The team handled everything end-to-end, including the grant. Our energy bill was cut in half the very first year.