Posts Tagged payback

RCx projected to have an 83% Annual Growth Rate the next 4 years: What?! Commercial Building Retro Commissioning (RCx)

So according to Pike Research, yes “Commercial Building Retro-Commissioning Revenue Could Surpass $1.8 Billion in the United States by 2014” So that’s a mouthful.  Retro-Commisoning, also dubbed RCx, why? I don’t know, looks cool, but RCx simply ” is a process that seeks to improve how building equipment and systems function together. ”   Why not say that, well, see cool comment earlier.  But according to Evan Mills. 2009. “Building Commissioning: A Golden Opportunity for Reducing Energy Costs and Greenhouse-gas Emissions” and thier report which “provides the world’s largest database of commissioning case studies for new and existing buildings.”

The results demonstrate that commissioning is arguably the single-most cost-effective strategy for reducing energy, costs, and greenhouse-gas emissions in buildings today.


Who stands to benefit from retro-commissioning? according to EnergyStar, “Building owners, managers, staff, and tenants all stand to gain from the retrocommissioning process. It can lower building operating costs by reducing demand, energy consumption, and time spent by management or staff responding to complaints. It can also increase equipment life and improve tenant satisfaction by increasing the comfort and safety of occupants.”

And if this RCx did not have enough addictive properties:

  • Median commissioning costs: $0.30 and $1.16 per square foot for existing buildings and new construction, respectively (and 0.4% of total construction costs for new buildings)
  • Median whole-building energy savings: 16% and 13%
  • Median payback times: 1.1 and 4.2 years
  • Median benefit-cost ratios: 4.5 and 1.1
  • Cash-on-cash returns: 91% and 23%
  • Very considerable reductions in greenhouse-gas emissions were achieved, at a negative cost of -$110 and -$25/tonne CO2-equivalent.

So where to start?  Well like a lot of trends California is a good place, and their Commissioning Collaborative Handbook.  And this thing is such a mouthful I’ll need to further elaborate in future posts after I can digest this RCx meal.


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