(1) Identify the biggest energy consumption appliances or products within the organization.
(2) Assess the viability of implementing energy-saving upgrades to the identified appliances, some examples are LED lighting retrofits, energy-efficient appliance upgrades, HVAC upgrades, and employee behavior changes.
a) Estimates to upgrade to a new system and energy savings can be done using this calculator. (https://www.energy.gov/eere/femp/energy-and-cost-savings-calculators-energy-efficient-products)
b) Energy simulation program to perform cost and energy comparison of upgrading your HVAC can be done using the EnergyPlus tool.
(3) Conduct research on potential government rebate programs in your area as many cities offer such rebates for companies who take action to make energy-efficient changes within their organization.