Volume 16, Issue 16 | June 3, 2019

Energy Saving Ideas for Commercial Buildings

Reduce your energy consumption during warmer weather.



The official start of summer may be weeks away, but warm summer temperatures and humidity are here. Energy consumption for indoor climate control is likely to be one of your largest operating expenses this summer and we'd like to help you prepare your commercial real estate property for warmer weather.

Here are 10 energy saving ideas to help you reduce your energy consumption costs this summer:

1. Adjust your thermostat. Just raising the temperature by a few degrees in the summer can have a large impact on energy usage.
2. Set back the thermostat in the evenings and other times when your building isn’t occupied. Set up trend logs of your HVAC systems to collect data on whether your systems are actually going into night setback mode
3. Use shades and blinds to control direct sun through windows in summer to avoid an increase in temperature.
4. Install solar shading features on east-, west- and south-facing facades.
5. Make sure that areas in front of vents are clear of furniture and paper. As much as 25% more energy is required to distribute air if your vents are blocked.
6. Replace inefficient cooling equipment with new high-efficiency equipment that has a higher coefficient of performance (COP) than the existing equipment.
7. Visually inspect the condition of the heating and cooling coils and the AHU filters. If the coils are dirty or the filters are clogged, change out the filters and clean the coils.
8. Eliminate Single-Pass Cooling Systems. Single-pass cooling systems use water to cool equipment, and the water is circulated only once before being dumped. If possible, modify these systems to be closed loop.
9. Educate employees and building occupants about how their behaviors impact energy use.
10. Consult your WGL Energy Services (WGL Energy) business development manager or channel partner for specific ideas and energy-saving recommendations for your building.

For more commercial real estate energy conservation tips, please view the following resources:

• National Renewable Energy Laboratory's (NREL)’s Commercial Building Checklists. NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.
• ENERGY STAR’s low- and no-cost energy efficiency measures. ENERGY STAR is a voluntary U.S. Environmental Protection Agency (EPA) program that delivers environmental benefits and financial value through superior energy efficiency.

Editor's Note

Prices Drop

Weekly Review May 19 - May 31, 2019


On Thursday, the U.S. Energy Information Administration (EIA) reported that working gas in storage as of Friday, May 24, 2019 was 1,867 BCF. This was an increase of 114 BCF from the previous week and was larger than what the market was expecting. Storage levels are 156 BCF (9.1%) higher than a year ago, and 257 BCF (12.1%) lower than the 5-year average for this date.

Prices were down this week, with most of the drop occurring after the storage report was released. At the end of the week, the NYMEX natural gas 12-month strip was down 1.2%, and the PJM West Hub 12-month forward curve was down 2.4%.

Stay tuned as we see what June has in store for weather and prices.

This past week's market information is provided as a courtesy to our customers and is not indicative of, nor should be relied upon, as representative of future transactions.


Local Heating Degree Days*


Washington, D.C. Area Cooling Degrees Days* 


Nov - 18

Dec - 18

Jan - 19

Feb - 19

Mar - 19

 Apr - 19















 Departure from Normal













*Heating degree day (HDD) data is for the Washington, D.C. area and is calculated by comparing the day’s average temperature to a 65-degree baseline. If the day’s average temperature is above 65, there are no heating degree days that day. If the day’s average temperature is less than 65 degrees, then subtract that average temperature from 65 to find the number of heating degree days.