Combined Heat and Power (CHP)
Extreme weather events and natural disasters such as bomb cyclones, forest fires, the polar vortex, and hurricanes are wreaking havoc on buildings, the electric grid, and other critical US infrastructure. Some communities are still struggling to rebuild from last year’s disasters, even as another hurricane season approaches.
Washington, DC—As more states struggle with extreme weather events, the 2017 State Energy Efficiency Scorecard gives state-level policymakers a road map for building stronger and more-resilient communities. This 11th annual report from the American Council for an Energy-Efficient Economy (ACEEE), released today, shows which states are doing the best on energy efficiency — a critical tool for withstanding and recovering from storms and economic shocks.
The industrial sector is unique among end-use sectors in that its energy intensity has declined consistently in recent decades, decreasing 45% from 1977 through 2016. The decline occurred even though the sector’s energy use has fluctuated, its output has almost doubled, and economic activity has risen and fallen with economic cycles.
How have your community’s energy efficiency initiatives also increased its resilience? Our new paper, Indicators for Local Energy Resilience, gives municipal leaders a unique set of tools to answer this question. We explore local energy resilience, our new term for the interconnection of community resilience and various aspects of energy supply and consumption.
More states are undertaking new approaches to utility planning that prioritize clean, distributed energy resources, but few are considering combined heat and power (CHP) for meeting the demands of the modern grid. In many ways, CHP provides exactly what they need.
Why utilities are investing in this technology as a way to boost resiliency and reduce consumer costs
What if there was a technology your utility could deploy today that was cheaper and cleaner than most existing power generation, that boosted system resiliency and reliability, and was twice as efficient? Would you want them to use it?
Combined heat and power (CHP) systems, also known as cogeneration, generate electricity and useful thermal energy in a single, integrated system. Heat that is normally wasted in conventional power generation is recovered as useful energy, which avoids the losses that would otherwise occur from separate generation of heat and power. While the conventional method of producing usable heat and power separately has a typical combined efficiency of 45 percent, CHP systems can operate at efficiencies of 60–80 percent or more.
ACEEE State Scorecard: Massachusetts Edges Out California as Most Energy-Efficient State, Maryland Among Most Improved
Top 10 States Ranked in Energy Efficiency Scorecard: MA, CA, VT, RI, OR, CT, MD, WA, NY … With MN and IL Tied for 10th; Five Most Improved States: MD, IL, DC, CA, and TX; and Five States in Most Need of Improvement: MS, LA, SD, WY, and ND.
October marks the release of the 9th edition of ACEEE’s State Energy Efficiency Scorecard, and we’re convinced it’s the best one yet. That’s because every year we refine our methodology, getting better and more specific data from states and adjusting our scoring criteria to reflect the changing landscape of energy efficiency. This year, we are making a few big changes, but you’ll still recognize the State Scorecard you’ve come to know.
Emissions reductions from combined heat and power (CHP) can help states comply with their obligations under EPA’s proposed Clean Power Plan. ACEEE has released a step-by-step guide to help states do just that. ACEEE’s new CHP template is intended to help states understand how to document and claim emissions reductions that result from CHP measures in their state plans.