Research brief · 2026
Energy and building resilience
Absolute energy autonomy is not always the most robust objective. Building resilience and performance often come from combining demand reduction, efficiency, local generation, storage, controls and grid connection.
How can a building remain performant amid changes in energy prices, climate and availability?
METHOD
- Start by reducing demand.
- Compare local generation, storage and demand flexibility.
- Assess resilience without confusing autonomy with isolation.
FINDINGS
Envelope
The least risky energy is energy the building does not need because of a high-performing envelope.
Controls
BMS, sensors and automation can shift or reduce some consumption.
Storage
Batteries improve self-consumption and some backup uses but should be sized to actual needs.
Mix
A hybrid, connected and controllable system is often more resilient than one seeking total independence.
STARTING BIBLIOGRAPHY
— IEA — Buildings sector analysis
— IPCC — Mitigation of Climate Change, Buildings chapters
— ADEME — Guides techniques sur rénovation et efficacité énergétique