Energy Efficiency

Labor Day may be approaching, but that doesn’t mean cooling season is over. Late August and September can still bring plenty of warm weather, and by this point in the season, commercial HVAC systems have already spent months handling high temperatures, humidity, and increased cooling demand. That makes late summer an important time to pay attention to system performance. Your HVAC equipment doesn't know the calendar is changing. If anything, the final weeks of summer can reveal problems that have been developing throughout the season.

When facility managers think about improving HVAC and refrigeration performance, major equipment upgrades often come to mind. But some of the biggest gains in efficiency, reliability, and equipment life don't require replacing a rooftop unit or installing a new refrigeration system. Instead, they come from the small operational decisions made every day. Simple habits—like keeping mechanical spaces clear, reporting unusual noises promptly, or reviewing equipment schedules—can have a measurable impact on how well your systems perform over time. Here are several everyday practices that can help protect your HVAC and refrigeration investment.

When HVAC performance issues arise, the first instinct is often to look at the equipment. A rooftop unit isn't cooling properly. Certain spaces are uncomfortable. Energy costs are climbing. The assumption is usually that a major mechanical component is failing. But surprisingly often, the equipment itself isn't the problem. The real issue lies in the controls system: the sensors, programming, schedules, and sequencing that determine how HVAC equipment operates. In today's commercial buildings, controls are the brain behind the HVAC system. Even perfectly healthy equipment can perform poorly if the controls aren't configured correctly.

For years, refrigeration systems have quietly rejected large amounts of heat into the atmosphere, a necessary byproduct of cooling processes. Today, that mindset is changing. With rising energy costs, decarbonization goals, and increased focus on operational efficiency, facilities are realizing something important: That “waste heat” isn’t waste at all. It’s an untapped resource. Heat reclaim is no longer a “nice-to-have” efficiency upgrade. It’s quickly becoming a core strategy for reducing energy consumption, lowering operating costs, and supporting net-zero initiatives.

In HVAC and refrigeration systems, the biggest performance gains don’t always come from major upgrades. More often, they come from small adjustments: changes to setpoints, sensor calibration, and control sequencing that fine-tune how a system actually operates. These are the details that sit behind the scenes. They don’t always trigger alarms. They don’t always cause obvious failures. But they can quietly impact: • Energy consumption • Equipment wear • Temperature stability • Overall system reliability If your system is running but not performing as efficiently as expected, the issue may not be the equipment. It may be the way it’s being controlled.

As energy costs continue to rise and sustainability goals gain momentum, Massachusetts offers one of the most robust portfolios of energy efficiency incentives in the country. For commercial building owners, industrial facilities, and property managers, understanding these incentives can unlock immediate cost savings, reduce long-term operating expenses, and support broader decarbonization goals. Whether you’re planning a major HVAC or refrigeration upgrade in 2026 or simply want to improve the performance of your existing systems, now is the time to plan strategically for rebate and incentive opportunities.

As Massachusetts temperatures start to drop, heating systems across the state fire up for another long winter. For business owners, this means one thing: energy costs are about to rise. But with a few proactive steps, you can boost heating efficiency, lower operating costs, and maintain comfort for your employees and customers all season long. At Northstar Refrigeration, we know New England winters can be unforgiving. Here are some expert-backed strategies to help your facility stay warm without wasting energy or money.

As sustainability targets tighten and energy costs rise, commercial and industrial building owners are reevaluating their HVAC strategies. One solution gaining traction? Heat pumps, a versatile, energy-efficient technology that provides both...

As buildings evolve to prioritize energy efficiency, flexibility, and occupant comfort, Variable Refrigerant Flow (VRF) systems are rapidly becoming a top choice for commercial HVAC applications. Whether you're designing a new office building, upgrading a mixed-use facility, or seeking better control in a hotel or healthcare environment, VRF technology offers a host of advantages over traditional heating and cooling systems. In this week’s blog, we'll break down what VRF systems are, how they work, and why they might be the ideal HVAC solution for your next project.

In today's fast-paced, energy-conscious world, building owners and facility managers are constantly looking for ways to maximize efficiency, reduce costs, and improve occupant comfort. One of the most effective ways to accomplish all three is through the implementation of a Building Automation System (BAS).

Upgrading to energy-efficient HVAC and refrigeration systems is a smart investment that reduces energy costs, improves system performance, and supports sustainability initiatives. However, one of the biggest hurdles for businesses considering these upgrades is the upfront cost. Fortunately, rebates, tax credits, and financial incentives can significantly offset these costs, making energy-efficient upgrades more accessible and cost-effective.

Maintaining a healthy indoor environment while keeping energy costs in check is a challenge for many commercial and industrial facilities. One effective solution is the Energy Recovery Ventilator (ERV), a system designed to improve indoor air quality while reducing energy consumption. ERVs are becoming an essential component of modern HVAC systems, especially in buildings aiming to balance ventilation needs with sustainability goals.

Practical ways to reduce cold storage energy use: door discipline, refrigerant choice, defrost timing, and controls. Field-tested by Northstar engineers.

Heat pumps are becoming an increasingly popular choice for heating and cooling homes and businesses due to their energy efficiency and versatility. However, despite their growing adoption, many misconceptions still surround heat pumps, leaving potential users uncertain about whether they’re the right choice. In this blog post, we'll address and debunk some of the most common heat pump myths, giving you the information you need to make an informed decision.

SEER, AFUE, VRF: which actually lower commercial HVAC bills? A facility manager's 2026 guide to choosing energy-efficient systems. From Northstar.

As energy costs continue to rise and businesses and homeowners seek more efficient ways to manage their energy usage, smart thermostats have emerged as a popular solution. These intelligent devices offer more than just convenience: they can help save money by optimizing heating and cooling systems, reducing energy waste, and allowing for more precise control of indoor environments.

As businesses continue to seek ways to reduce energy costs and achieve sustainability goals, the Mass Save program offers a wealth of rebates and incentives designed to support these efforts. By taking advantage of these opportunities, businesses can significantly lower their heating and cooling expenses, reduce their carbon footprint, and move closer to their net-zero goals. Northstar Refrigeration is here to help you navigate these options and maximize your benefits.

Heat Recovery Heat Pumps (HRHPs) are an innovative technology in the HVAC industry that enhances energy efficiency by transferring heat from one area to another. These systems can simultaneously provide heating and cooling, making them a versatile solution for various applications. HRHPs utilize waste heat that would otherwise be lost, converting it into useful energy for heating or cooling purposes.