Optimizing Microgrid Systems: Integrating Renewable Energy Sources and Battery Storage

A microgrid utilizes multiple power generation assets to create energy. These assets can be conventional distributed energy resources such as generator sets, or renewable resources such as wind turbines and solar panels. These resources, paired with energy storage are not just technically feasible, but also cost-effective for many … [Read more...]

Addressing the Needs of Your Behind-the-Meter Applications

 The definition of a “microgrid” is somewhat elusive. Generally, any collection of generators and loads that are not tied to the grid, and are expected to operate autonomously can be considered a microgrid. The microgrid can sometimes tie into the grid, and sometimes be “islanded” or separated from the grid, or may be entirely “off the grid” … [Read more...]

A Unique Approach to Coupling Solar + Storage

This white paper from Alencon discusses the practical considerations of deploying a PV-centric, DC-coupled solar plus storage system.  This paper has been written for a wide audience to help it understand what is involved in combining solar and storage, from the what doing so actually means to different methods for doing so. It will focus on the … [Read more...]

Lessons Learned from Installing Battery Energy Into an Existing PV Array

This white paper from Alencon explores why retrofitting battery energy into existing PV arrays makes sense and what some of the challenges to overcome in doing so are, as explained by a major utility with real experience in this area. Solar plus storage. If you are in the energy business, not just the alternative energy business, it is a … [Read more...]

Maximizing the Value of On-Site Power Generation with EPA Tier 4 Final Stationary Engines

Whether for standby power, base-load power generation or built-in redundancy for critical assets, many organizations install stationary engines at their facilities so they may generate their own power. Because these stationary engines are relatively commonplace, they collectively have an impact on air quality and public health, so the Environmental … [Read more...]

Biogas Microgrid

Power from pig manure has proven to be an innovative solution to several farm challenges for a unique hog farm in rural Lillington, N.C. This report explores how Butler Farms installed lagoon covers for animal waste to not only reduce odors and eliminate rainwater ingress, but also to capture biogas to utilize as a renewable energy … [Read more...]

A Comparison of Fuel Choice for Backup Generators

The costs of a power outage to a business can be substantial, including losses in product, revenue, productivity, and customers. With increasing severe weather events and disasters triggering greater numbers of costly power outages, there is a growing interest in generators for reliable backup power. This report discusses the costs and benefits … [Read more...]

Energy Storage: The New Efficiency

This report, which describes how states can use energy efficiency funds to provide incentives for energy storage, is a publication of Clean Energy Group (CEG), with appendices containing several white papers prepared by the Applied Economics Clinic under contract to CEG. This report explains the steps Massachusetts took to become the first state to … [Read more...]

Surviving a Catastrophic Power Outage

The nation has steadily improved its ability to respond to major disasters and the power outages that often result. But increasing threats—whether severe natural disasters, cyber-physical attacks, electromagnetic events, or some combination—present new challenges for protecting the national power grid and recovering quickly from a catastrophic … [Read more...]

California’s Changing Time-of-Use Rates: Calculating the Impact on Behind-the-Meter Solar PV and Energy Storage

For utilities, electricity is generally more expensive and complex to deliver when demand is high. To help cover these costs, California’s utilities have traditionally imposed time-of-use (TOU) rates, which created a daily schedule that applies different prices for power based on demand trends on the grid. When demand is highest, prices are highest … [Read more...]