Maximizing the Benefit from Renewable and Non-Renewable On-Site Power Generation Systems

Abstract

Water and wastewater utilities have the unique opportunity to generate revenue streams from renewable and non-renewable on-site power generation systems. Renewable and non-renewable on-site power generation systems typically utilized in the water and wastewater industry include biogas fueled CHP systems, photovoltaic (solar), wind, hydraulic energy recovery system, geothermal systems and diesel or natural gas fueled engine generators. These systems commonly generate revenue by offsetting the purchased energy source (i.e. electric utility), however, there are additional opportunities that can enhance existing revenue streams or develop new revenue streams from these renewable and non-renewable onsite power generation sources. These opportunities include: Utilizing onsite generators to participate in electric utility demand response programs.These opportunities are available to a wide range of water and wastewater utilities since most electric utilities offer some form of a demand response program.  Generation of renewable energy credits (RECs) from on-site renewable energy generation sources such as biogas fueled CHP systems, wind and photovoltaic systems (Solar). Renewable energy credits can be sold to electric utilities or other entities who need the credits to meet state mandated renewable energy portfolio standards.  Negotiating a power purchase agreement with the electric utility to sell renewable energy directly to the utility at a favorable rate and/or in exchange for the renewable energy credits.  Coordinating alternate electric utility rates that will maximize the benefit from on-site power generation systems such as time of use rates and real time energy pricing rates.The purpose of this paper is to present an overview of the multiple ways water and wastewater utilities can enhance the benefit from their on-site power generation sources and describe how the green energy markets/regulations and electric utility programs can contribute to the benefit and risks from these systems. KEYWORDSEnergy management, demand management, combined heat and power, biogas utilization, electric utility rates, energy markets, emission regulations, demand response.

Transformative multivalue business models: A bottom‐up perspective on the hydrogen‐based green transition for modern wind power cooperatives

“…A multiple revenue stream approach is given attention under this work. As both wind manufacturers and wind‐based utilities confront survival problems, a multiple revenue stream approach would offer an alternative business model, which, if followed, could act as a solid profitability plan.…”