M A T T H E W L A M B E R T G P H 9 0 4

RENEWABLE ENERGY POTENTIAL FOR WINTER ISLAND, SALEM, MA

OBJECTIVE

• To determine the potential for wind and solar energy

generation for Winter Island, Salem, MA

http://02809photo.com/2012/01/22/one-frigid-light-fort-pickering-winter-island-salem-massachusetts

BACKGROUND

-

COMMUNITY INFORMATION

Salem, MA

• Essex County

• Land Area: 8.10 square miles

• Water Area: 9.95 square miles

• Population: 40,407

(U.S.Census 2000)

• Density: 4,986 per sq. mile

• 750MW coal fired (soon to be

natural gas) power plant adjacent

to study area

Winter Island

• City Park with a beach, boat

launch and campsites

• ~ 45 acres in land area

• Site of historic Fort Pickering

• Chosen for analysis based strictly

on curiosity

DATA

• MassGIS Data - 2010 Census Blocks, Block Groups, and Tracts data

• MassGIS Data - Digital Terrain Model (DTM) Files

• MassGIS Data - Modeled Wind Speed Grids (70 meter)

• ArcGIS Data - World Imagery Base Map (satellite imagery)

• Projected Coordinate System: NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001

• Datum:

D_North_American_1983

METHODS

Solar

• A DEM raster was created using the ArcGIS Inverse Distance Weighted

(IDW) tool and the MassGIS digital terrain model

• ArcGIS Solar Analyst tool was used to create a solar insolation raster (SIR)

from the DEM, producing (Wh/yr/m2)/ cell

• ArcGIS Zonal Statistics (ZS) tool was used to determine mean solar

insolation value from SIR the for the study area

• The ZS product was joined with study area polygon shape file in order to

make results available for calculations

IDW SIR

Winter Island

• 20 % of shape area was used for

deterring solar potential based on

land area, not building outlines

• Some of the buildings are not

structurally sound

• Largest building is an airplane

hanger with an irregularly roof

SOLAR CALCULATIONS

Constraints

• 20% of the shape area of polygon was used

• 12% deducted for transmission efficiency

• 55% deducted for cloud cover (NOAA)

Calculations

(mean Wh) x ( shape area m2 x.20)= Wh/ year

/1000=kWh

x 0.12

x 0.55

/10,000 = potential house holds supplied

Winter Island Wind Turbines

• 3 Vestas V80 wind turbines

• Rated power 1.8 MW

• Hub height 80m

• Blade length 49m

http://easywindenergy.blogspot.com/2013/05/vestas-v100-18-mw.html

Wind

• 70 meter annual wind speed raster was used

• Calculations were based on generating potential of the land

area and potential using a Vestas V80 wind turbine, rated at

1.8 Megawatts (same model currently in use in Hull, MA)

• Based on the wind speed raster Hull is in the same category as

Salem

• Maximum potential of V80 turbine was calculated using:

(turbine) MW × days × hours × operating capacity =

Solar Results (Wh/year)72858693951.761307 / 1000 = (kWh/year)

72858693.951761

(72858693.951761) (.20) (.12) (.55) =961734.76014 kWk/year

961734.76014 / 10000 = 96. 173

There is potential to produce enough solar energy in the study

area to supply energy to 96 house holds.

Wind Results

1.8 MW × 365 days × 24 hours × 25% = 3942 MWh x 1000

=3,942,000 kWh

/ 10, 000 = ~394 households

x 3 = 1,182 households

DISCUSSION

Caveats

• No environmental or social impact studies were considered for solar

or wind

• Did not use wind speed as a variable in calculating wind potential

Conclusions

• Winter Island does have potential for generating wind and solar

energy

• Approximately 1,300 households could be powered using 20% of the

land area for solar

and 3 1.8 MW wind turbines

• This could power ~ 14% of the housing units in Salem

• I would recommend installing at least 1 wind turbine at Winter

Island

References

MassGIS. Office of Geo Information. Commonwealth of Massachusetts, Information

Technology Division. Digital Terrain Model (DTM) Files. Accessed 19 April 2014.

http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-

geographic-information-massgis/datalayers/dtm.html

MassGIS. Office of Geo Information. Commonwealth of Massachusetts, Information

Technology Division. Datalayers from the 2010 U.S. Census. Census_2010_tracts_SHP.

Accessed 19 April 2014. http://www.mass.gov/anf/research-and-tech/it-serv-and-

support/application-serv/office-of-geographic-information-

massgis/datalayers/census2010.html

MassGIS. Office of Geo Information. Commonwealth of Massachusetts, Information

Technology Division. Building Structures (2-D, from 2011-2013 Ortho Imagery)

structures_poly_258.shp. Accessed 20 April 2014. http://www.mass.gov/anf/research-and-

tech/it-serv-and-support/application-serv/office-of-geographic-information-

massgis/datalayers/structures.html

NOAA. National Oceanic and Atmospheric Administration. Average Annual Daytime Cloud

Coverage. 2013. Accessed 20 April 2014

http://www.erh.noaa.gov/ctp/features/2013/sky_cover/index.php

Hull Wind 2010. Accessed 25 April 2014. http://www.hullwind.org/

Vestas. 2014. Products and Services. Accessed 25 April 2014.

http://www.vestas.com/en/products_and_services/turbines/v100-2_0_mw#!