Windplanner’s100kW

Wind Turbine Project for

CHRHS

Presented by: The Windplanners

This presentation will address:•Education

•Data

•Projected Savings

•Turbine Location and Details

The first reason is education!•The turbine on campus and the data

generated and the process to date has and will continue to provide a wide variety of authentic learning opportunities.

•This will be a demonstration site for community-scale wind that is easily accessible in the midcoast.

•We want our school campus to symbolize the kind of society we want and need to become.

6 years of History•New School - Incorporated some

renewable technology (geothermal) despite this, operating costs were higher than expected. Efficiency measures taken. What else could we do? Windplanners was established.

•MET data - UMass results: wind resource is marginal but viable for this site.

•Town ordinance written

•Data challenge

•UMass third party review

Data SummaryOriginal Wind Speed (m/s)

Adjusted Wind Speed (m/s)*

Output Range (kW/yr) ***

MET Tower @ CHRHS 3.75 4.38** 88,000 -

122,000UMass Buoy 4.33 101,150

UMass Portland 4.15 75,000

UMass Augusta 5 125,000

UMass Conclusions 4.5 - 5.0 99,000 -

125,000UMass High Estimate 5.5 190,000

**The adjusted speed of 4.38 m/s was calculated by Hillary Hanson and Bill Hopwood. The original work was misfiled, so the history of this calculation is lost.

*The analysis by UMASS is viewed as the Due Diligence for this project. The Adjusted Wind Speed corrects for any inter-annual variations of wind speed and the method UMASS used is an accepted method within the industry.

***Output estimates were provided by Northern Power and UMASS.

Wind Data

February 2006 – July 2007

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What does $510,000 buy?

•NPS 100 kW wind machine w/ controls: $380,000

•Transportation to site: $10,000

•Engineering and permitting: $20,000

•Electrical components: $15,000

•Site Work: $15,000

•Foundation: $25,000

•Turbine installation: $15,000

•Electrical Contractor: $25,000

•Startup and commission of machine: $5,000

Funds Raised to Date

Maine Community Foundation $7500Unity Foundation $500FMC $300Stephen and Tabitha King Foundation* $35,000Anonymous $40,000Anonymous $60,000Windplanner fundraisers* $1097Individual Contributions* $457Anonymous Matching Donor up to $200,000

*Some or all of these funds are being matched

Total to Date: $211,000

Projected Savings

Average Wind Speed

(m/s)4.2 4.5 5.0

kWh/yr(Northern Power

Estimates - lower than UMass)

77,000 99,000 125,000

20 years of energy production

(kWh)1,540,000 1,980,000 2,500,000

Current Utility rate (per kWh)

0.145Energy savings per year (at current

rate)

$11,165 $14,355 $18,125

20-year utility rate

(projected average from Northwind)

0.229

Energy savings per year

(at projected avg. rate)

$17,633 $22,671 $28,625

Energy savings over 20 yrs.

(using projected avg. rate)

$352,660 $453,420 $572,500

Operation & MaintenanceEstimate of $3500/ yr after warranty

Possible Revenue Options to cover O & M *Sell Renewable Energy Credits

(REC) - $.03/kW 105,000kW would generate $3150/yr*Fundraise to establish a reserve

*Pay from savings*Other?

Siting the Northwind 100

The Northwind 100

•Direct Magnetic Drive - quiet and cuts in at low wind speeds.

•Warranty - 2 years

•Reputation - “Best of Breed” for this size turbine. Design life (20 yrs) based on performance in the Arctic and Carribean.

•Big jump to go smaller - there are no viable turbines in the 11 - 99 kW class.

•Location - manufactured in VT, service and initial carbon impact minimized

Questions??