Combining efficiency with solar for maximum value
Pairing energy efficiency measures with solar installations improves financial returns by reducing overall demand, trimming system size requirements and accelerating payback. Efficiency should be considered before or alongside solar to ensure the system is right-sized for actual needs.
Why combine them
- Lower upfront cost: Reducing consumption can decrease the solar array size needed to meet energy goals.
- Faster payback: Efficiency investments often pay back quickly and increase the percentage of energy offset by solar.
- Reduced sizing for storage: Smaller loads lower battery capacity requirements for backup or peak shaving.
Practical measures
- Lighting upgrades: Switch to LEDs and add controls to reduce continuous loads.
- HVAC optimization: Improve insulation, sealing, and HVAC efficiency to reduce peak demand.
- Building controls: Use building automation systems to optimize schedules and reduce waste.
- Process improvements: For industrial sites, optimize equipment sequencing and replace inefficient motors.
Implementation approach
- Start with an energy audit to identify high-impact, low-cost measures.
- Prioritize no-cost or low-cost changes with quick payback before investing in solar.
- Integrate efficiency outcomes into solar design to size systems appropriately and avoid overspending.
Financial planning
- Model combined savings from efficiency and solar to calculate total ROI.
- Consider financing bundles that cover both efficiency upgrades and solar installations.
Combining efficiency and solar creates a more cost-effective, resilient and sustainable energy strategy for businesses, improving returns and reducing environmental impact.