Geothermal Brochure - Application Version

Generate electricity from

Geothermal, District heatinG & co-ProDUceD flUiDs

Green machine orcSmall-scale power generation from low temperature geothermal

Geothermal electricity

Generate electricity from...

Geothermal & co-ProDUceD flUiDs

INTRODUCESelectratherm

ElectraTherm partnered with the US Department of Energy and Florida Canyon Mine to generate geothermal power in Imlay, Nevada.

Until recently, geothermal power plant development focused on multi-megawatt opportunities that required deep drilling, large capital expenditures, and multi-year time lines to implement. However, ElectraTherm’s heat-to-power technology employs easily accessible, low-temperature geothermal flows to make electricity. ElectraTherm is the world leader in low-temperature, heat-to-power technology.

The majority of geothermal resources produce low temperature hot brine flows (less than 210˚F / 100˚C), and ElectraTherm’s Green Machine can operate on resource temperatures as low as 170˚F / 77˚C.

Additionally, tens of thousands of oil & gas wells co-produce millions of barrels of hot water per day, at temperatures ideal for making power with ElectraTherm’s Green Machine. That hot water has value as a free, renewable “fuel” source to generate clean power.

The Green Machine generates power from low temperature geothermal in Oradea, Romania.

Production wellwith pump

Re-injectionwell

Green Machine with Liquid Loop Radiator

Geothermal heat available for other uses

Primary Heat Exchanger

Geothermal Balance of PlantEasily transported and installed at remote geothermal sites, turnkeyGreen Machine systems are robust and reliable and create power from lowertemperatures and smaller flows than alternate ORC technologies. The vast number of low temperature geothermal resources around the world now have value as a source of clean, renewable energy.

additional Downstream heat Uses • Preheat make-up air to ventilation systems • Radiant floor heating • Swimming pools • Drying processes

• Domestic hot water • Driveway ice melting• Cattle trough warming • Aquaculture

INTRODUCES Organic Rankine Cycle technology optimized for Geothermal, District Heating & Co-Produced Fluids

ElectraTherm partnered with the US Department of Energy and Florida Canyon Mine to generate geothermal power in Imlay, Nevada.


District heatinGEnergy efficiency measures on district heating and cooling applications have become increasingly important in Europe where heating represents the largest energy end-use. According to the Euro Heat and Power Association, heating represents approximately 50% of final energy consumption in Europe.

The Green Machine innovative solution replaces dated technologies with the best clean, renewable efficiency option for district heating systems in the world today.

• Domestic hot water • Driveway ice melting• Cattle trough warming • Aquaculture

District heating Balance of PlantElectraTherm Green Machines can be deployed on a district heating system to generate clean energy and increase site efficiency.

ORCLOOP

ORCLOOP


120°C 116°C

105°C

95°C

Low temperature heating application or coolers

Low temperature heating application or coolers

ElectraTherm commissioned 10 Green Machine 4400s in Slovakia on a centralized district heating system.

CONfIgURaTIONSGeothermal confiGUrations

Diagram 1

130°C 116°C

101°C

ORCLOOP

110kWe

ORCLOOP

110kWe

Low tem

perature heating application or coolers

Low tem



Diagram 2

116°C130°C

91°C ORCLOOP

75kWe

ORCLOOP

110kWe

Low tem


Low tem



101°C

Diagram 3

ProductionWell

InjectionWell

GM 6500Gross: 92kWe

Net: 88kWe

GM 6500Gross: 45kWe

Net: 43kWe

GM 4200Gross: 21kWe

Net: 20kWe

GM 6500Gross: 92kWe

Net: 88kWe

GM 6500Gross: 45kWe

Net: 43kWe

GM 4200Gross: 21kWe

Net: 20kWe

GM 6500Gross: 92kWe

Net: 88kWe

GM 6500Gross: 45kWe

Net: 43kWe

GM 4200Gross: 21kWe

Net: 20kWe

GM 6500Gross: 92kWe

Net: 88kWe

GM 6500Gross: 45kWe

Net: 43kWe

GM 4200Gross: 21kWe

Net: 20kWe

110°C, 10 l/s

85°C

71°C

110°C, 10 l/s

85°C

71°C

110°C, 10 l/s

85°C

71°C

110°C, 10 l/s

85°C

71°C

64°C, 40 l/s

40 l/s

TOTAL NET POWER : 604KWE

Parallel confiGUration

Diagram 1 shows that with sufficient flow, two or more Green Machines can make power from a single geothermal resource.

series confiGUration

Diagram 2 shows that two or more Green Machines can be placed in series, with residual heat from the first ORC feeding heat to the next in line.

comBination confiGUration

Diagram 3 below shows a combination of parallel and serial configurations which optimize resources for maximum electrical output.

Multiple Green Machines offer redundancy and flexibility. Capable of following a variable heat load, Green Machines can turn on or off and use variable working fluid phases to optimize power produced from fluctuations in available heat. As one machine receives maintenance, the balance of Green Machines continue to produce clean, renewable power.

CONfIgURaTIONS Geothermal, Co-Produced Fluids & District Heating

District heatinG confiGUrations

As a byproduct at oil and gas wells, hot water has previously been considered a nuisance. Green Machines use co-produced water as fuel to make clean, renewable power.

After removing geothermal brine from oil and gas, hot water is readily available to produce electricity in a Green Machine ORC - for on-site use or for sale to the grid. Feed-in tariffs for renewable energy enhance the revenue opportunity in many locations.

co-ProDUceD flUiD confiGUration

raDiator with a PayBack

Diagram 5 illustrates how the Green Machine on a district heating network produces electricity while consuming heat so hot water flows reach temperatures suitable for use in the system.

reDUce heat in a serial confiGUration

In Diagram Six three Green Machines in series lower 116°C flows to 85°C. The Green Machine can reduce temperatures to as low as 64°C for use in other low temperature applications.

Use feeD or retUrn lines in District heatinG networks to ProDUceelectricity

A Green Machine can produce electrical power from a district heating network with minimal impact to the temperature.

Diagram Seven shows how the Green Machine can take heat from the main stream to produce electricity while keeping the district heating network in almost identical condition.

The Green Machine can use the heat for electricity production when there is less heating demand, thereby optimizing the overall network profitability.

Diagram 5

116°C

ORCLOOP

Low tem



- Or -

Incinerator

Up to70°C

From10°C

Feed line 86°C to 105°C

Return line 70°C to 90°C

DistrictHeating

Diagram 6

ORCLOOP

ORCLOOP

ORCLOOP

105°C 95°C

Feed line of DH

N

Hea

t fro

m g

eoth

erm

alor

from

boi

ler/

inci

nera

tor

116°C 85°CLow temp

heating application or coolers

Low temp heating

application or coolers

Low temp heating

application or coolers

Diagram 7

116°C

105°C ORCLOOP

Low tem


Up to70°C

From10°C

DistrictHeating

22 l/s

Feed

line

120

°C

@ 9

0 l/s

Feed

line

117

°C

@ 9

0 l/s

Ret

urn

Line

ORCLOOP

Diagram 4

Production WellWith Pump


Re-injection Well

Geothermal Heat Available For Other Uses

Green Machine WithLiquid Loop RadiatorOil

Green Machine 4200 - Up to 35kWe

gREEN MaChINE PRODUCTS,


4400 Stand alone• Dimensions: 2.4 x 2 x 2.3 m• Weight: 3,600 kg / 7,920 lbs• MSRP: $192,953

Multiple condensing options:Sound attenuation, dual heat stream, startup and commissioning, shipping to remote areas may incur additional charges.

4400-fL 40 ft. ISO frame• Dimensions: 12 x 2.4 x 2.6 m• Weight: 9,400 kg / 20,680 lbs• MSRP: $292,038

Turnkey ORC Systems include: 40ft. ISO framing, working fluid, liquid loop radiator and pertinent piping & pumps, minimal engineering (no concrete foundation required), 50 & 60hz generators

• Shipping (customs duties not included)• Plug and play


6500 Stand alone• Dimensions: 2.4 x 1.8 x 2.2 m• Weight: 3,600 kg / 7,920 lbs• MSRP: $289,429





4200 Stand alone• Dimensions: 2.4 x 2 x 2.3 m• Weight: 3,600 kg / 7,920 lbs• MSRP: $165,816





Green machine 4200, 4400 & 6500

Performance taBle

gREEN MaChINE PRODUCTS, Performance Tables and Heat to Power Applications


heat to Power aPPlicationsElectraTherm’s Green Machine generates electricity from various heat sources, including:

Stationary Engines Biomass/Biogas

Boilers & Process Heat Oil & Gas, Geothermal Solar Thermal

Process Heat & Incinerators

4200<35kWe

4400 <65kWe

6500<110kWe

Hot Water Input

Parameters

Hot water inputtemp range

˚F 170 - 240 170 - 240 170 - 252

[ ˚C ] [ 77 - 116 ] [ 77 - 116 ] [ 77 - 122 ]

Thermal input range

MMBTU/hr 1.02 - 2.22 1.02 - 2.9 1.2 - 5.4

[ kWth ] [ 300 - 650 ] [ 300 - 860 ] [ 330 - 1600 ]

Flow rate rangegpm 50 - 200 50 - 200 100 - 350

[ l/s ] [ 3.2 - 12.6 ] [ 3.2 - 12.6 ] [ 6.4 - 22.1 ]

Water Cooled

Condensing Parameters

Cooling water input temp range

˚F 40 - 150 40 - 150 40 - 150

[ ˚C ] [ 4 - 65 ] [ 4 - 65 ] [ 4 - 65 ]

Heat rejected to cooling water range

MMBTU/hr 0.9 - 2.0 0.9 - 2.7 1.1 - 5.1

[ kWth ] [ 270 - 600 ] [ 270 - 795 ] [ 320 - 1500 ]

Cooling water flow rate

gpm <220 <220 <350

[ l/s ] [ <13.9 ] [ <13.9 ] [ <22.1 ]

LLR / Dry Cooler

Ambient air temp˚F <100 <100 <100

[ ˚C ] [ <38 ] [ <38 ] [ <38 ]

Heat rejected to condenser

MMBTU/hr 0.9 - 2.0 0.9 - 2.7 1.1 - 5.1

[ kWth ] [ 270 - 600 ] [ 270 - 795 ] [ 320 - 1500 ]

ElectraTherm, Inc. is a clean energy company headquartered in Reno, Nevada. ElectraTherm’s product, the Green Machine, generates fuel-free, emission-free power from low temperature waste heat using the Organic Rankine Cycle (ORC) and patented technology. Our machines are modular, robust, low maintenance power generators.

©2015 ElectraTherm | USA Contact +1 775 398 4680 | EMEA Contact: +33 6 83 189316 [email protected] | www.electratherm.com

ET-005 GBAPP_A4 2015_2/19

ElectraTherm offers a full range of ORCs, including 35kW, 65kW and 110kW solutions available as stand alone or in series. ElectraTherm’s award-winning Green Machine utilizes low grade heat sources to make electricity with:

• No fuel requirement • 20-year design life• Minimal footprint • Low maintenance• Zero emissions • Attractive payback

the Green machine orc

how it worksElectraTherm’s waste heat-to-power system uses a closed loop Organic Rankine Cycle (ORC).

Steps in the Process1) Working fluid is pumped to higher pressure and transferred to the evaporator.

2) Heat captured by the evaporator boils the working fluid into pressurized vapor.

3) The vapor flows through the twin screw expander, spinning an electric generator to produce power.

4) The vapor is cooled and condensed back into a liquid in the condenser to repeat the cycle.

2 �3

4

1

=

�

Evaporator

Twin Screw ExpanderGenerator

Condenser

Pump

ORCworking fluid

LOOP

standard features and specifications• Fully automated controls with remote monitoring and operating capabilities • Induction generator with power factor correction for easy grid connection • Simple maintenance, with no gearbox or oil changes• NEMA 3R / IP 54 compliant enclosure for outdoor use• Sound attenuated option: <72db at 1 meter• CE certified

• Brazed plate heat exchangers• Robust, Twin Screw Expander power block• Patented in-process lubrication

twin screw expander

Documents

Geothermal Brochure - Application Version