Geothermal Projects
What is Geothermal?
 A geothermal heat pump system is a heating and/or an air conditioning system that uses the Earth's ability to store heat in the ground's thermal masses. These systems operate on the stability of underground temperatures; the ground a few feet below surface has a very stable temperature throughout the year, typically somewhere in range of 50-75°F depending upon the location's annual climate.
A water-source heat pump with extended temperature range removes the heat from the building and rejects it to the ground during the summer time. Once heating season comes around, the available heat stored in the ground is used to heat the building. A geothermal system differs from a conventional system by its ability to transfer heat versus the standard method of producing and rejecting the heat.
AEI has been designing geothermal systems for over 20 years and we are one of the leading geothermal consultants in the United States.
Project Spotlight: Pennswood Village - Geothermal Wellfield
Client: Pennswood Village, Newtown, PA
Geothermal Contractor: Morrison, Inc.; Duncannon, PA
 One of many ongoing capital improvement projects at Pennswood Village in Newtown, PA is the installation of a 150 well / 450 ton capacity geothermal wellfield.
Designed by AEI's geothermal team, this geothermal system is one of AEI's most recent hybrid geothermal systems. The existing facility was served by two closed circuit coolers. Included in AEI's design was to re-use the existing 300 ton closed circuit cooler to meet this continuing care retirement communities' cooling dominated load.
This hybrid system also includes full bypass connections to the wellfield and closed circuit cooler. Pennswood Village will have the flexibility to operate this system in a variety of configurations based on interior building conditions and the outdoor air temperatures.
As this project enters the final stages of construction, Pennswood Village is in the early stages to begin the replacement of over 200 water source heat pumps throughout the main building with new high efficiency extended range water source heat pumps designed for use in geothermal systems.
Geothermal Projects In Design / Under Construction
| Project Name |
Area (S.F.) |
Capacity (Tons) |
No. of Wells |
Estimated Completion Date |
| West Chester University – Master Geothermal Plan; West Chester, PA. |
1,067,375 |
6,500 |
1,915 |
2013 |
| New Kensington High School; Philadelphia, PA. |
90,000 |
277 |
80 |
2010 |
| Epic Systems, Inc. - Phase III; Madison, WI. |
500,000 |
1,500 |
550 |
2010 |
| Newbridge on the Charles; Boston, MA. |
1,000,000 |
2,500 |
408 |
2009 |
| Woolwich Township Municipal Building; Woolwich Township, N.J. |
30,200 |
118 |
45 |
2009 |
| Weld Hill Research & Administration Building @ Harvard University, Cambridge, MA |
35,000 |
240 |
88 |
2009 |
| Barroway Residence; Gladwyne, PA |
30,000 |
48 |
16 |
2009 |
| West Chester University – Dormitory “A” and “B”; West Chester, PA. |
378,000 |
667 |
168 |
2009 |
| Camden-Rockport Elementary School; Rockport, ME. |
80,000 |
248 |
110 |
2009 |
| Yeramyan Residence; Newtown Square, PA. |
6,400 |
30 |
12 |
2009 |
| South Dover Elementary School; Dover, DE. |
75,000 |
216 |
80 |
2009 |
| Epic Systems, Inc. - Phase II; Madison, WI. |
1,000,000 |
2,500 |
900 |
2009 |
| Ivy Club @ Princeton University; Princeton, N.J. |
5,000 |
17 |
6 |
2008 |
| West Chester University – Library I & II; West Chester, PA. |
141,000 |
344 |
100 |
2008 |
| West Chester University – Ruby Jones Hall; West Chester, PA. |
20,740 |
56 |
20 |
2008 |
| North Penn Community Health Foundation; Lansdale, PA. |
24,000 |
89 |
35 |
2008 |
| Hurst Residence; Huntingdon Valley, PA |
3,400 |
8 |
3 |
2008 |
| Waterside Villas; Monroe Township, N.J. |
150,000 |
337 |
180 |
2008 |
Geothermal Projects Completed (Partial List)
| Project Name |
Area (S.F.) |
Capacity (Tons) |
No. of Wells |
Date Completed |
| Pennswood Village; Newtown, PA. |
159,600 |
450 |
150 |
2008 |
| Rose Tree Tavern; Broomall, PA. |
6,000 |
20 |
6 |
2008 |
| Astra Zeneca – Contractor’s Building; Wilmington, DE. |
4,000 |
17 |
5 |
2008 |
| Whitehorse Village – Addition; White Horse, PA. |
78,700 |
200 |
28 |
2008 |
| PA Governor’s Mansion; Harrisburg, PA. |
8,000 |
23 |
10 |
2008 |
| Landhope Residence; Chester County, PA. |
9,800 |
28 |
8 |
2008 |
| St. Andrew’s RC Church; Newtown, PA. |
16,100 |
46 |
20 |
2008 |
| West Bradford Township Building; West Bradford, PA. |
5,700 |
24 |
8 |
2008 |
| Lawnside Elementary School; Lawnside, N.J. |
6,000 |
25 |
16 |
2007 |
| Norris Residence; Ottsville, PA. |
5,900 |
16 |
4 |
2007 |
| Epic Systems, Inc. – Conference Center; Madison, WI. |
50,000 |
Future |
------ |
2007 |
| Woodbury School District – High School; Woodbury, N.J. |
190,280 |
667 |
176 |
2007 |
| Woodbury School District – West End E.S.; Woodbury, N.J. |
49,300 |
162 |
44 |
2007 |
| Woodbury School District – Evergreen School; Woodbury, N.J. |
45,000 |
155 |
44 |
2007 |
| Woodbury School District – Walnut Street School; Woodbury, N.J. |
15,200 |
80 |
20 |
2007 |
| 21st Century Self Storage; Marmora, N.J. |
78,400 |
29 |
16 |
2007 |
| Layton Residence; East Vincent Township, PA. |
3,200 |
12 |
4 |
2007 |
| St. Ann’s CCRC; Medford, N.J. |
130,000 |
400 |
128 |
2006 |
| Widener University – Thayer Hall; Chester, PA. |
13,800 |
50 |
12 |
2006 |
| New Castle County – Public Service Building; New Castle, DE. |
126,000 |
370 |
220 |
2006 |
| Epic Systems, Inc. - Phase I; Madison, WI. |
450,000 |
1,050 |
384 |
2005 |
| Widener University – Kirkbride Hall Renovation; Chester, PA. |
80,200 |
225 |
56 |
2005 |
| Widener University – Kirkbride Hall Addition; Chester, PA. |
49,000 |
225 |
48 |
2005 |
| Music Together; Princeton, N.J. |
14,000 |
60 |
14 |
2005 |
| Virginia Tech CRC #18 & 19; Roanoke, VA. |
83,000 |
275 |
72 |
2005 |
| Drew Elementary School; East Windsor, N.J. |
173,000 |
574 |
145 |
2005 |
| Widener University – Dormitory; Chester, PA. |
95,000 |
300 |
72 |
2005 |
| Timberlane Middle School; Pennington, N.J. |
28,000 |
112 |
40 |
2005 |
| Ft. Monmouth – Building #2525; Ft. Monmouth, N.J. |
14,400 |
48 |
14 |
2005 |
| Ft. Monmouth – Building #1203; Ft. Monmouth, N.J. |
5,800 |
17 |
6 |
2005 |
| Collings Lakes Elementary School; Collings Lakes, N.J. |
17,700 |
59 |
18 |
2005 |
| Medford School #1; Medford, N.J. |
63,000 |
250 |
55 |
2005 |
| Medford School #2; Medford, N.J. |
63,000 |
250 |
55 |
2005 |
| Medford Cranberry Pines School; Medford, N.J. |
60,000 |
200 |
56 |
2005 |
| Cobb’s Creek Meeting House; Philadelphia, PA. |
2,500 |
5 |
2 |
2005 |
| Long Branch High School; Long Branch, N.J. |
280,000 |
950 |
256 |
2004 |
| Long Branch Middle School; Long Branch, N.J. |
220,000 |
900 |
224 |
2004 |
| Geothermal Services, Inc.; Egg Harbor, N.J. |
11,000 |
8 |
4 |
2004 |
| Upper Pittsgrove School; Pittsgrove, N.J. |
78,000 |
300 |
64 |
2004 |
| American Hebrew Academy; Greensboro, NC |
860,000 |
3,200 |
656 |
2003 |
| Widener University – Quick Center; Chester, PA. |
32,000 |
126 |
36 |
2003 |
| Widener University – Grasselli Hall; Chester, PA. |
16,800 |
50 |
12 |
2003 |
| Chautauqua Middle School; Chautauqua Lake, N.Y. |
264,000 |
880 |
320 |
2001 |
| Ft. Myer; MDW; Arlington, VA |
16,000 |
40 |
10 |
2000 |
| Ft. Meade; Ft. Meade, MD. |
280,800 |
702 |
180 |
2000 |
| Ft. McNair; Washington, D.C. |
21,600 |
54 |
16 |
2000 |
| Ft. Belvoir; Alexandria, VA. |
15,600 |
39 |
10 |
2000 |
| Ft. A.P. Hill; Ft. A.P. Hill, VA. |
81,600 |
204 |
60 |
2000 |
| Blair Co. Courthouse; Hollidaysburg, PA. |
128,000 |
390 |
94 |
1999 |
| Valley View Nursing Home; Altoona, PA |
38,500 |
220 |
80 |
1999 |
| Columbia Greene Community College; Hudson, NY. |
150,000 |
470 |
128 |
1998 |
| D.N.E.R.R. Environmental Center; Dover, DE. |
2,500 |
20 |
4 |
1997 |
| Morven; Princeton, N.J. |
12,000 |
34 |
12 |
1997 |
| Arbor Glen; Bridgewater, N.J. |
400,000 |
700 |
175 |
1997 |
| Delaware Electric Cooperative; Claymont, DE. |
36,000 |
100 |
27 |
1997 |
| Whitetail Ski Area; Mercersburg, PA. |
96,000 |
120 |
48 |
1997 |
| Quantico Dependent HS; Quantico, VA. |
64,000 |
225 |
130 |
1997 |
| Neff School; Mannheim Twp., PA. |
120,000 |
400 |
140 |
1996 |
| Middletown High School; Middletown, De. |
160,000 |
450 |
150 |
1996 |
| Copper Hill School; Flemington, N.J. |
124,000 |
495 |
280 |
1996 |
| Tel Hai; Honeybrook, PA. |
105,600 |
264 |
88 |
1996 |
| Lower Providence Library; Lower Providence, PA. |
4,400 |
38 |
14 |
1995 |
| King George County Courthouse, VA. |
12,500 |
73 |
34 |
1995 |
| Hershey's Mill; Montgomery Co., PA. |
6,200 |
40 |
10 |
1995 |
| Bard College; Annandale-on-Hudson, N.Y. |
40,400 |
101 |
28 |
1995 |
| Allegany Community College; Everett, PA. |
15,240 |
58 |
29 |
1994 |
| Wake Robin (CCRC); Shelburne, VT. |
330,000 |
703 |
300 |
1994 |
| J.F. Kennedy Elementary School; Berlin, N.J. |
25,000 |
63 |
24 |
1994 |
| Gloucester County Library; Gloucester Co., N.J. |
24,682 |
73 |
24 |
1994 |
| Eisenhower Elementary School; Berlin, N.J. |
27,300 |
78 |
24 |
1994 |
| Stockton State College; Pomona, N.J. |
400,000 |
1,633 |
400 |
1993 |
| Tseng Residence, Stone Harbor, N.J. |
3,500 |
14 |
0 |
1992 |
| Tseng Residence; New Hope, PA. |
15,000 |
25 |
5 |
1991 |
| ECRI; Plymouth Meeting, PA. |
104,000 |
252 |
62 |
1989 |
| Summersgate Skilled Care Facility; Jenkintown, PA. |
25,000 |
89 |
12 |
1989 |
| The Ronald McDonald House; Philadelphia, PA. |
2,000 |
5 |
1 |
1988 |
| The Waterworks; New Hope, PA. |
88,000 |
194 |
40 |
1988 |
| Barnegat Middle School; Barnegat, NJ |
110,000 |
412 |
106 |
1987 |
| Whitehorse Village; Media, PA. |
390,000 |
1,100 |
263 |
1987 |
| Beaumont at Bryn Mawr; Bryn Mawr, PA. |
420,000 |
840 |
187 |
1986 |
| The Sagamore Hotel; Lake George, NY |
400,000 |
800 |
300 |
1983 |
| Stockton College Marine Science Center; NJ |
27,300 |
100 |
25 |
------ |
| Express Rail Building – PANY&NJ; Newark, N.J. |
10,000 |
40 |
10 |
------ |
| “Q” Building; Philadelphia, PA. |
52,500 |
108 |
35 |
------ |
| Barkan Residence; Philadelphia, PA. |
7,300 |
18 |
5 |
------ |
| Georgia Tech Dormitory; Atlanta, GA. |
18,900 |
54 |
30 |
------ |
| Total |
8,772,802 |
24,676 |
7,128 |
------ |
|
Projects - Geothermal HVAC