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By Coffman Electrical Equipment April 30. 2015 Allows for simple integration with renewables.

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Presentation on theme: "By Coffman Electrical Equipment April 30. 2015 Allows for simple integration with renewables."— Presentation transcript:

1 by Coffman Electrical Equipment April 30. 2015 Allows for simple integration with renewables

2 Inverter based cogeneration makes small scale CHP possible Eliminates need for complicated paralleling gear Simplifies Utility interconnect, similar to solar inverters. Variable speed motor reduces efficiency loses at partial loads Ability to stage multiple units Uses standard automotive style engines simplifying maintenance. Allows easy integration with batteries to maintain voltage stability.

3 Combined Heat & Power (aka cogeneration) Definition: The simultaneous production of two useful outputs (electricity + heat) from a single fuel source 2-for-1: “A generator that makes free hot water” or “A boiler that makes free electricity” Gas in 1,263,000 Btu/hr Electricity out 100 kW Thermal out 700,000 Btu/hr 100.0% 27.0% 55.4% >82.4% total (HHV basis) >92.8% total (LHV basis)

4 Benefits to Site ECONOMICS Cut energy costs by 30-50% Qualify for incentives (utility/ fed/ state) Reduce exposure to utility rate volatility ENVIRONMENTAL Cut carbon footprint by 50% Increase efficiency Lower emissions SECURITY Black-start capability (supplemental standby capacity = “convenience power”) Power quality Reduce US dependence on foreign oil

5 Environmental Benefits of CHP: CO 2 Emissions Reductions With TECOGEN INV-100, 576 fewer tons of CO 2 are emitted each year, by 'SAMPLE TECOGEN INSTALLATION' 49% Reduction

6 INV-100 Features Qualifies for Standardized Interconnection UL1741 Compliant CE Marked for European Use Black-Start/Grid-Independent Operation Compatible With CERTS “Wireless Droop” Control Power Quality No Reactive Power Use Power Boost for Demand-Side Response Enhanced Efficiency Low Emissions Internationally Adaptable 50/60 hz

7 Premium Power Module - Inverter Interface Power Conversion

8 General Layout Additional Features Water-cooled Generator/ Electronics Large Oil Sump New Exhaust HX/ Catalyst Design Extra Cat Surface Extra Sound- Attenuated Enclosure

9 Power Electronics/ Generator

10 Performance Excellent part-load efficiency

11 INV-100 Part Load Performance INV-100 Modulation Electrical Output (kW) Fuel Usage (BTU/hr) Heat Recovery (BTU/hr) Electrical Efficiency (%) Overall Efficiency (%) 1001,262,760700,00027.082.5 80991,440557,80027.683.8 60751,740442,10027.386.1 40541,620330,72025.286.3

12 CM-100 X Typical Facility - Normal Operation Three Unit Site All Feed Power Into The Same Circuit “Load Center” INV-100’s Provide Some Power 3 x 100 kW (300 kW) Balance From the Utility Example: Loads all 100 kW (500 kW Total) Utility Supplies 200 kW “X” Reactance Key Device for Load Sharing Controls Facility Breaker CM-100 X X Utility Feed Load Group 1Load Group 2Load Group 3Load Group 4Load Group 5

13 CM-100 X Typical Facility - Outage Facility Breaker is Open to Isolate System/Protect Linemen Excess Loads are Disconnected load 2 and 4 in this Example Units Power Loads 1, 3, 5 Power is Shared Equally No Load Sharing Controls Required Can be Manual or Automatic Or “Uninterruptible” (UPS) Facility Breaker CM-100 X X Utility Feed Load Group 1 Load Group 2 Load Group 3 Load Group 4Load Group 5

14 Brevoort CHP plant consists of (4) 100kW Tecogen InVerde units which provide heating, domestic hot water and electricity for the 20 story co-op condo building. MICROGID CASE STUDY THE BREVOORT, a 1950’s era co-op tower in the Greenwich Village section of New York City, maintained power, water and heat during the wide spread power outages left in the wake of Superstorm Sandy thanks to Tecogen’s combined heat and power (CHP) system.

15 Brevoort CHP plant consists of (4) 100kW Tecogen InVerde units which provide heating, domestic hot water and electricity for the 20 story co-op condo building. MICROGID CASE STUDY THE BREVOORT, a 1950’s era co-op tower in the Greenwich Village section of New York City, maintained power, water and heat during the wide spread power outages left in the wake of Superstorm Sandy thanks to Tecogen’s combined heat and power (CHP) system.

16 DC based CHP These DC based generators are available in either Natural gas/propane or Diesel Variable speed with Lithium battery charging integrated in engine control Are available from 6 kw to 26 kw. Can be integrated into inverter packages up to 80 kw.

17 25kW 30kW 60kW 200k W 100 – 400kW recip. packaged CHP Reciprocating Gas Engine Packaged CHP Systems recip. packaged CHP 5kW 128 – 2,129kW 250 & 333kW turbines

18 Absorption Chilling 30 tons of cooling available per 100 kw of CHP Combines heat from generator and heat removed from building into common low grade heat source This heat can be reused in other requirements.

19 Engine driven Chillers 50- 400 tons Recovers waste heat while providing Chillers. Lower Emissions than Fuel Cells Provides Energy savings at part load similar to Variable Speed Chillers Automotive based engines.

20 22 ton Engine driven Heat pump Hot and air cooled versions Brings cooling tower waste heat to building distributions system COP of 2.2 to 3.1 Recovers Data Center Heat.

21 Microgrid Design Micro-grid is the integration of multiple technologies to provide backup power when grid power is unavailable or to maximize renewable power as % of total power. This same design can allow for the integration of Cogeneration and renewable heating/cooling systems. Allow for net zero application by at little additional cost through reduction of backup power cost and size.

22 Integrated CHP, solar PV/thermal with electric and thermal storage

23 3300 Jefferson Se Grand Rapids, Mi. 49548 616-452-8708 www.steadypower.com


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