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ACMO Burlington Conference    February 2, 2018

Case Studies

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Small Multi-Residential


Units: 57

Square Footage: 63,000

Heating Type: 2x boilers supply baseboard heaters, one MAU, domestic hot water – single gas-fired boilers with two 119 gallon storage tanks


After mCHP

  • Decreased Electricity Consumption: 68%
  • Total Incentive: $58,940
  • Annual Utility Savings: $29,203
  • Internal Rate of Return: 23.3%
  • Cash Flow Positive: 5.5 years

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Multi-Residential


Units: 124

Square Footage: 118,000

Heating Type: 2x hydronic baseboard heaters, 2x MAU, domestic hot water – single gas-fired boiler with one back up


After mCHP

  • Decreased Electricity Consumption: 86%
  • Total Incentive: $157,290
  • Annual Utility Savings: $83,708
  • Internal Rate of Return: 22.8%
  • Cash Flow Positive: 5.5 years

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Multi-Residential


Units: 107

Square Footage: 125,000

Heating Type: 2x boilers, 2x gas-fired MAU, domestic hot water – 2x gas-fired boilers with two 119 gallon storage tanks


After mCHP

  • Decreased Electricity Consumption: 74%
  • Total Incentive: $89,028
  • Annual Utility Savings: $42,925
  • Internal Rate of Return: 24.4%
  • Cash Flow Positive: 5 years

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Large Multi-Residential


Units: 1350

Building Type: Two high rise towers and one low rise

Heating Type: Electric baseboard heaters, domestic hot water uses a single centralized gas-fired boiler


After mCHP

  • Decreased Electricity Consumption: 62%
  • Total Incentive: $782,943
  • Annual Utility Savings: $534,125
  • Internal Rate of Return: 50.3%
  • Cash Flow Positive: 2.5 years

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Municipal Rec Centre


Building Type: Rec Centre

Facilities Include: Gymnasium, Indoor pool, Indoor courts, Twin pad arena

Heating Type: Gas-fired hydronic heating plants, gas-fired rooftop units, two gas-fired boilers, two heater tanks, one gas-fired boiler supplies the Zamboni with flood water


After mCHP

  • Decreased Electricity Consumption: 31%
  • Total Incentive: $170,526
  • Annual Utility Savings: $86,971
  • Internal Rate of Return: 26.6%
  • Cash Flow Positive: 5 years

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Industrial


Building Type: Warehouse

Square Footage: Expanding from 50,000 ft² to 120,000 ft²

Heating Type: 6 x Steam boilers and 2 x hot water boilers added for expansion


After mCHP

  • Decreased Electricity Consumption: 92%
  • Total Incentive: $483,577
  • Annual Utility Savings: $273,034
  • Internal Rate of Return: 37.6%
  • Cash Flow Positive: 3.5 years

FAQs

Cogeneration

How much will I save?

Each facilities’ needs are different which is why we create an Energy Assessment Report to identify your current expenditures and what our recommended solution will do for your bottom line.

What types of facilities use mCHP?

CHP systems are found in a variety of sectors. If the facility has a need for electricity as well as the thermal energy, they are good candidates.

Examples include: hospitals, long term care facilities, apartment or condominium buildings and hotels, industrial plants as well as municipal services, such as schools, universities and community centres are great candidates for CHP.

Will we still have power during an outage when using mCHP?

Our micro combined heat and power systems are designed to manage your electricity baseload. Meaning they can not be used as a back up generator for supply required above and beyond the predetermined baseload.

I’m concerned about noise pollution. How will cogeneration affect the residents in our building?

Our cogeneration units are encased, which reduces the noise significantly. The output of noise is similar to the engine noise you would hear while sitting in a car running at 1500 RPM. In other words, it’s quiet and won’t affect your residents.

Will a cogeneration system remove me from the grid completely?

Our micro combined heat and power systems are designed to manage your electricity baseload. Meaning they can not be used as a back up generator for supply required above and beyond the predetermined baseload.

How do I choose the best mCHP provider?

Consider this chart when comparing dbs to other providers to ensure you make the best decision.

 

CHP Providerdbs Power and Energy[Contractor XYZ]
Number of mCHP Installs100+ units
Install or SubcontractWe use our own installers
Performance History of Previous Installs3 years of data
Years in Business39
Remote MonitoringOn all machines
Manufacturers Used6
Factory CertifiedYes
Service ResponsivenessImmediate
End-to-End Project ManagementYes
Incentive Application AssistanceYes
Discount15%
Annual Increase Discount3% annually (vs. 6% utility)

Installation

How long does a cogeneration system take to install?

Each solution is customized to your unique building therefore times may vary. However, on average installations are completed in 6-8 weeks.

Where are mCHP units typically installed?

We will always do a site visit before determining the best solution for your facility. During this visit, we will also determine the best location for installation. The units themselves are relatively small, about the size of a refrigerator, which allow for installations in basements, garages, mechanical rooms, etc. All units will fit through standard doorways.

How do I know if I am eligible for mCHP?

  • You have a naturals gas connection
  • You use electricity
  • You have a need for thermal energy (to heat building, hot water, pools, etc.)
  • We will then review approximately 12 months of energy bills to review energy consumption. We also use this data to produce an Energy Assessment Report.

We are interested in mCHP but don’t have natural gas. Now what?

Although natural gas is the most common fuel used to power mCHP there are other options such as bio-gas or propane.

Service

What if there’s a problem with our cogeneration system?

As an end-to-end provider, dbs services the equipment at no additional cost to our PPA clients. If you have purchased the system outright, there are maintenance products which you are eligible to purchase. Some issues may be able to be resolved remotely while others may require a technician to be on site. Either way, in the unlikely case that your cogeneration unit is not working correctly, call dbs and we will assist you.

How often does a micro combined heat and power unit need to be serviced?

We follow the manufacturer recommended maintenance schedule. Depending on the equipment installed the service intervals can vary from as little as once a year to 3 times a year.

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