The term “green power” is used to express multiple concepts, but in the broadest sense it refers to environmentally preferable energy and energy technologies.  Numerous energy utility providers allow their customers to purchase a percentage of their electricity from renewable energy sources. In New York there are over twenty enrollment programs provided by various utility providers according to the EPA’s Green Power Network (www.epa.gov/greenpower). These providers’ sources of renewable energy include wind, biomass, and hydro. Other renewable resources that may be available to New York organizations but are found nationwide include geothermal, solar, low-impact hydro, and biogas.
The price of power generated from fossil fuels is continuously variable and increasing since it is effected by fuel prices. However green power doesn’t come with such variability and technologies are continually making it more cost-efficient to invest in such energy resources. The obvious environmental benefits of green power procurement include less pollution, no increasing emissions of greenhouse gases, and protecting human and environmental health. It’s imperative that organizations also recognize the financial benefits of green power. Purchasing energy for renewable sources ensures stable utility costs, rather than being subject to the variations of fuel costs. Green power sources also don’t endure fuel supply disruptions as nonrenewable sources do. There’s also the benefit of less compliance concerns with environmental regulations. Currently, governing entities worldwide are addressing global climate change and regional air quality concerns by increasing the price of traditional electricity resources. Procuring green energy also adds credibility to an organization by attaining environmental objectives, demonstrating social leadership, and stirring good publicity. Not only does it improve employee morale, it can create jobs while securing current employment. In the market this action may be able to distinguish your organization’s products and services from competitors, while becoming a preferable partner in green supply chains.
Below are general steps to purchasing green power provided in a publication produced in a collaborative effort between the U.S. Department of Energy, the EPA Green Power Partnership, the World Resources Institute, and the Center for Resource Solutions. 
Set goals – Before an organization procures green power they should identify what green power options will attain their environmental targets while meeting their energy demands. Set goals for your organization while considering why you’re seeking green power, what are the most important criteria, and which certification and verification processes you may want to incorporate.
Identify key decision-makers – Figure out who in your organization has the knowledge and expertise to provide good input for the decision-making process, in regard to resource purchasing, energy management, environmental compliance, and marketing aspects. Their input in the planning stage can lead to large rewards later on.
Gather energy data – When determining how your organization may benefit from green power procurement, the people involved should be familiar with your organization’s energy use, energy sources and their environmental aspects. Gather data to build such an understanding, which may include energy inventories, energy efficiencies, load management, and compiling an energy portfolio.
Choose green power options – Different green power options come with different criteria in regard to environmental, financial and market positioning. Decide initially whether to generate power on-site or to purchase green power from utility providers, if not both. Develop financial approaches to overcome capital costs of converting your energy procurement means. Every region has different green power options available in the local energy market, so figure out the ones available and determine which are the most practical for your organization.
Evaluating the purchase – After an organization has procured green power resources, evaluate how well it is working for you against what you anticipated. Is your organization taking actions to benefit from your green power procurement? What objectives have you accomplished or narrowed the gap to accomplishing? With on-site generation, evaluate the associated processes to get the most out of your efforts.