July 25, 2025

Discover how microgrids are transforming the way businesses manage energy costs, reliability, and sustainability.

The Energy Infrastructure Challenge

Across Greater New York, energy systems are under strain. Much of our existing electrical grid is outdated―built for a different era―and the pressure of electrification, renewables integration, and growing energy demand is pushing it to its limits. With load growth having doubled since 2023, alongside the economic challenges associated with replacing or repairing the grid, utilities face growing congestion. This can lead to increased demand charges or more expensive energy―costs that are passed on to customers through increased rates for energy generation and distribution.

So, what is the alternative? Microgrids.

Microgrids are no longer a niche concept; they’re becoming essential infrastructure. As the vulnerabilities in the electrical grid grow more apparent, microgrids offer a resilient, decentralized solution to ensure energy reliability and stability.

What is a Microgrid?

A microgrid is a localized energy system that can operate independently or in tandem with the utility grid. It intelligently manages multiple energy sources to deliver reliable cost-effective power.

These systems are tailored to individual sites, making them scalable and adaptable to a variety of facilities including commercial, industrial, healthcare, and data center infrastructure. No two microgrids will be exactly the same as each site will have specific requirements.

How Microgrids Work: A Closer Look

At its core, a microgrid functions as a self-contained power system capable of intelligently managing energy generation, storage, and distribution. What makes it unique is its ability to operate either in parallel with the main utility grid or completely independent of it―a feature known as “islanding.”

Here’s a deeper dive into how a system would function in a real-world application:

1. Energy Generation

Microgrids use multiple on-site technologies to generate power including:

  • Solar PV Panels capture sunlight and convert it into electricity during daylight hours
  • Generators, powered by diesel or natural gas, serve as reliable backups and provide power during prolonged outages or in the event of low solar production
  • Wind turbines or combined heat and power (CHP) systems may be integrated depending on specific site needs.

2. Energy Storage

At the center of modern microgrid functionality is the Battery Energy Storage System (BESS). These batteries:

  • Store excess energy from solar or the grid during off-peak hours
  • Discharge energy during peak demand to reduce costly utility charges
  • Serve as a buffer during outages, maintaining continuous power to critical operations

Battery systems are critical to maximizing the value of a microgrid. They allow businesses to store low-cost or solar energy for later use, discharge during peak periods to minimize demand charges, and maintain uptime during outages.

Ongoing innovations in battery technology are marking these systems safer, more energy-dense, environmentally sustainable, fire resistant, and less reliant on rare earth metals.

3. Power Distribution & Load Management

A centralized microgrid controller acts like the brain of a system. It continuously monitors:

  • Energy supply from each source
  • Real-time demand across the site
  • Utility pricing and time-of-use rates

4. Grid Interaction

When grid power is available and cost-effective, the microgrid can draw from it. When prices surge or the grid fails, the microgrid can pivot to its internal assets. The grid-optional capability is what empowers businesses to manage energy costs.

Why Are Businesses Investing in Microgrids?

Lower Operational Costs

By leveraging on-site generation and storage, microgrids can reduce demand charges―one of the biggest expenses for commercial facilities. For example, peak shaving with battery storage can help reduce charges up to $30/kW in some markets.

Improved Resilience

Microgrids provide energy security during grid outages, extreme weather events, or utility service connection delays. In one case, a data center bypassed a years-long utility connection delay by deploying a standalone microgrid system, achieving full operational capacity faster and more reliably.

Sustainability & Compliance

Integrating renewables and storage supports carbon reduction goals and regulatory compliance, while also taking advantage of incentives and tax credits for clean energy.

Relevancy to NYC & Westchester County:

Permitting & Safety Regulations

In NYC, microgrids with solar, batteries, or generators must comply with FDNY regulations, FDNY Fire Code, DOB permitting, and Con Edison interconnection requirements. In Westchester County, each municipality has its own rules. Most are curreclt yaccepting residential systems, with each town setting their own standards. However, some towns have outright banned it or currently have moratoriums on large-scale solar and BESS systems.

Keeping Local Climate Laws in Mind

Microgrids support the effort towards compliance with NYC Local Law 97, enforcing carbon emissions limits for buildings >25,000 square feet; and New York State’s Climate Leadership and Community Protection Act (CLCPA), which sets statewide energy targets at 70% of renewable electricity by 2030 and 100% by 2040. These laws are driving clean energy adoption and emissions reductions across the region.

Financial Incentives

New York State Energy Research & Development Authority (NYSERDA): Program offering rebates, technical support, and low-interest financing for on-site and community solar projects throughout New York State.

NYS Solar Tax Credit: 25% credit for system costs up to $5,000 in residential applications, applied to New York State income taxes which can be combined with Federal tax credits and rollover for up to five years.

Ready to Take Control of Your Power?

No matter the type of facility you own/operate, a microgrid can be economically and environmentally beneficial. However, there are several considerations to explore in order to understand the feasibility of a system. Each design will vary based on the needs of the facility so it’s important to consult with a professional first.

Collado Engineering monitors the newest microgrid technology and is familiar with the relevant regulations/incentives for your system. We are happy to advise on the next steps of the process.

By: Alec Raia & Matthew Vilaboy