NHSaves Blog

Direct Digital Controls

Posted on Tuesday, January 26, 2016 in @ Home

Key Points Direct-digital control has replaced conventional control technology in energy management systems. The system architecture maps out the system and allows controllers to share data. The advent of online control has increased the flexibility and capabilities of EMS systems. Energy management systems (EMS) have long been used to control energy use in heating, ventilating…

Saving Energy on Computer and Office Equipment

Posted on Tuesday, January 26, 2016 in @ Work

Key Points Today’s computers are much more energy efficient than a decade ago, but only if they are configured to sleep when they are not in use. Flat screen monitors use considerably less energy than cathode ray monitors. Chargers that are left plugged in when not in use still draw current and waste energy. According…

8 Ways to Pump Up the Savings

Posted on Monday, January 11, 2016 in @ Municipalities

Key Points Pumping systems account for about 80 percent of electricity used for water treatment. Proper sizing, maintenance and improved controls can optimize pump system efficiency. Replacing valves or improving flow can help reduce friction losses and increase energy efficiency. Publicly owned water supply and wastewater treatment plants use nearly 70 billion kilowatt-hours (kWh) of…

House Ventilation Strategies

Posted on Monday, December 14, 2015 in @ Home

Key Points Ventilation can reduce indoor moisture, odors, and pollutants that may lead to health problems. Three key ventilation strategies are available: natural, whole-house, and spot ventilation. To reduce noise levels, look for ENERGY STAR®-rated ventilation fans. All homes need ventilation—the exchange of indoor air with outdoor air—to reduce indoor moisture, odors, and other pollutants….

Save Money with Variable Frequency Drives

Posted on Thursday, December 3, 2015 in @ Municipalities

Key Points VFDs save energy by adjusting motor speed to match load requirements. Motors that drive variable loads, such pumps and fans, are ideal candidates for VFDs. VFDs have limitations that make them unsuitable for certain applications.   Motors are designed to operate at a constant speed. However, the devices they operate frequently run at…

If You Cannot Stand the Heat, Check Your Kitchen Ventilation Systems

Posted on Friday, November 27, 2015 in @ Work

Key Points  Kitchen ventilation is critical to food service operations, but uses a substantial amount of energy. A well-maintained ventilation system can save energy, as well as increase safety and comfort. Balancing makeup air and proper equipment placement helps increase ventilation system performance.   Food service facilities use far more energy per square foot of building space than…

7 Ways to Lower Water Heating Costs

Posted on Monday, November 16, 2015 in @ Home

Key Points  Water heating accounts for nearly 10 percent of total energy use in commercial buildings. Maintenance and conservation measures reduce hot water demand and operating costs. If your system is more than 10 years old, consider upgrading to energy-efficient technologies.   Water heating accounts for nearly 10 percent of total energy use in commercial buildings. For facilities…

Intelligent Controls Make Lighting Smarter

Posted on Tuesday, November 10, 2015 in @ Work

Key Points  Intelligent light controls can help you reduce operating costs and improve your facility. Intelligent lighting systems are adaptable, measurable and can provide valuable information. LEDs are dimmable and start instantly, making them a perfect fit for intelligent controls.   Are you focusing on lighting the way you should be? Just think, lighting accounts for about 20 percent of energy use in commercial…

HVAC Systems: Top 10 Money-Saving Technologies

Posted on Wednesday, November 4, 2015 in @ Work

Heating, ventilation and air conditioning; that’s a lot to fit into one system. No wonder HVAC is the biggest energy user in most commercial buildings. These innovative technologies are like a breath of fresh air; saving energy and improving system performance, while keeping your indoor environment clean, comfortable and productive.   Electronically commutated motors (ECMs)…

Saving Energy on Computer and Office Equipment

Posted on Tuesday, October 27, 2015 in @ Work

Key Points  Today’s computers are much more energy efficient than a decade ago, but only if they are configured to sleep when they are not in use. Flat screen monitors use considerably less energy than cathode ray monitors. Chargers that are left plugged in when not in use still draw current and waste energy.   According to the U.S….