… the new store is projected to consume an estimated 200,000 kWh and generate an estimated 256,000 kWh annually, according to engineering calculations. To make this possible, Walgreens will equip the new store with more than 800 roof-top solar panels, two wind turbines, geothermal wells , LED lighting and energy-efficient building materials.

This smacks of the standard net zero energy building strategy, which Lawrence Berkeley National Laboratory has characterized like so: “‘net zero energy’ buildings (ZEB) follow the strategy of first achieving very aggressive reductions in energy use needed to provide the desired energy services, and then providing the remaining energy requirements with on-site renewable energy.”