To ensure maximum transparency and accountability, every TerraPass offset purchase is verified in a periodic review conducted by an independent and accredited third party.  We were the first, and remain the only, carbon offset provider in the U.S. to undergo such a review of our carbon purchase and supply. 

The review covers several aspects of our business:

Offset quantity: Did we actually source the necessary amount of carbon offsets on behalf of our customers? To ensure that we did, the accountant examines and verifies our retail sales records and offset supply contracts.

Offset quality: Did we adhere to the quality benchmarks that we say we support? The accountant examines our carbon offset portfolio to ensure that it meets our stated standards.

Transparency and Verification: Our published project portfolio list is part of our submittals to the independent accountant. We publish details on the full portfolio for each period once it has been verified by our accountant. Partners such as Expedia or Enterprise Rent-A-Car are included as a subset of the overall portfolio.

Each year TerraPass retires the offsets it sold during the previous year. The time lag between sale and retirement occurs because of the process required to have third parties verify the exact amount of offsets generated and retired on behalf of our customers.  Each year we compile a list of every sale, check it in detail (and have our outside accountants check it in detail as well), and add up all the numbers to make sure that everything aligns.

 


 

2014 Project Portfolio

Status: Verified

The projects listed below detail our portfolio for customers who purchased offsets from the main TerraPass portfolio between January 1, 2014 to December 31, 2014.

Read the independent accountant’s report (pdf)»


 

2013 Project Portfolio

Status: Verified

The projects listed below detail our portfolio for customers who purchased offsets from the main TerraPass portfolio between January 1, 2013 to December 31, 2013.

Read the independent accountant’s report (pdf)»


2012 Project Portfolio

Status: verified

The projects listed below detail our portfolio for customers who purchased offsets from the main TerraPass portfolio between January 1, 2012 and December 31, 2012.

Read the independent accountant’s report (pdf) »


2010-2011 Project Portfolio

Status: verified

The projects listed below detail our portfolio for customers who purchased offsets from the main TerraPass portfolio between July 1, 2010 and December 31, 2011.

Read the independent accountant’s report (pdf) »

Independent Carbon Portfolio Review

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2010-2011 Projects

Project name Location Type Vintage year Standard Verifier
Cambria 33 Abandoned Coal Mine Ebensburg, PA ACM Methane 2010 VCS DNV
Scenic View Dairy I Fennville, MI Ag Methane 2010 CAR LRQA
Green Valley Dairy Freeport, MI Ag Methane 2009 CAR SCS
Holsum Elm Dairies Ag Methane 2009-10 CAR TuV SuD America
Brook View Dairy Ag Methane 2009-10 CAR LRQA
Raleigh County Solid Waste Authority Raleigh County LFG 2011 CAR LRQA
Charleston WVA Charleston LFG 2010-11 CAR FE
Robeson County Landfill St. Pauls, NC LFG 2011 CAR Agri-Waste Technologies
Crow Wing County LFG 2008 CAR FE
Sioux Falls Regional Sanitary Landfill Sioux Falls, SD LFG 2011 CAR Agri-Waste Technologies
Worcester County Landfill Newark, MD LFG 2011 CAR FE
Red Hills Wind Project Elk City, OK Wind 2009 VCS CE
Greater Lebanon Refuse Authority Lebanon, PA LFG 2010-11 VCS NSF-ISR

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2009-2010 Project Portfolio

Status: verified

The projects listed below detail our final portfolio for customers who purchased offsets from the main TerraPass portfolio between January 1, 2009 and June 30, 2010. The listing is verified.

Read the independent accountant’s report (pdf) »

Independent Carbon Portfolio Review

TerraPass’ retail sales and retirements of carbon offsets were independently reviewed by SingerLewak, a top 100 accounting services firm (out of over 150,000 nationally) headquartered in Los Angeles, CA.

TerraPass’ carbon portfolio for the period of January 1, 2009 through June 30, 2010 saw several changes from previous years. In addition to offsets from wind power, agricultural methane capture, and landfill gas capture, we added a new project type:  methane capture from an abandoned coal mine. Meanwhile, changes in the market impacted the supply of offsets from agricultural methane capture projects, thus resulting in a smaller percentage of such offsets in our portfolio than in previous years.

All projects meet our high standards for inclusion in the portfolio. In addition, we carried forward into this timeframe our final remaining offsets issued under the Chicago Climate Exchange program (CCX) so that they could be retired to honor specific requests from customers.  These offsets were not part of the general portfolio used to satisfy our individual and business sales.

The projects listed below detail the final portfolio for retail customers who purchased offsets between January 1, 2009 and June 30, 2010. See SingerLewak’s report for full details.

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2009-2010 Projects

Project name Location Type Vintage year Standard Verifier
Cambria 33 Abandoned Mine Methane Capture Ebensburg, PA ACM Methane 2008 VCS DNV
Scenic View Dairy I Fennville, MI Ag Methane 2008-10 CAR SES
Scenic View Dairy II Freeport, MI Ag Methane 2009-10 CAR SES
Flathead Electric Cooperative Landfill Kalispell, MT LFG 2009-10 VCS NSF
Beulah Municipal Landfill (Dorchester County) Hurlock, MD LFG 2009 CAR FE
Greenville County Landfill Gas Utilization Greer, SC LFG 2009 CAR
L.P. Gill Landfill Jackson, NE LFG 2008 CAR NSF
Robeson County Landfill St. Pauls, NC LFG 2008 CAR LRQA
Sioux Falls Regional Sanitary Landfill Sioux Falls, SD LFG 2009-10 CAR FE
Sioux Falls Regional Sanitary Landfill Sioux Falls, SD LFG 2008 CCX* FE
Tri-Community Recycling and Sanitary Landfill Fort Fairfield, ME LFG 2010 CAR SCS
Worcester County Landfill Newark, MD LFG 2009 CAR FE
Red Hills Wind Project Elk City, OK Wind 2008-09 VCS SGS
Greater Lebanon Refuse Authority Lebanon, PA LFG 2008 CCX* NSF

* Vintage 2008 CCX offsets were carried forward from the prior portfolio review to satisfy specific customer requests (i.e, where such offsets were specifically requested by customers).
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2008 Project Portfolio

Status: verified
Total metric tons CO2: 211,836

The projects listed below detail our final portfolio for customers who purchased offsets from the main TerraPass portfolio between January 1, 2008 and December 31, 2008. The listing is verified and audited.

Read the third-party auditor report (pdf) »

2008 Projects

Project name Location Type Vintage year Standard Verifier
Geerlings Hillside Farms Overisel, MI FP 2008 CCX SES
George DeRuyter and Sons Dairy Outlook, WA FP 2008 CCX SES
Greater Lebanon Refuse Authority Lebanon, PA LFG 2008 CCX RSGA
2008 VCS2007 TUV
Green Valley Dairy Krakow, WI FP 2008 CCX SES
L.P. Gill Landfill Jackson, NE LFG 2008 CCX/CAR FE
Robeson County Landfill St. Pauls, NC LFG 2008 CAR RMA
Scenic View Dairy I Fennville, MI FP 2008 CAR/CCX RMA/SES
Scenic View Dairy II Freeport, MI FP 2008 CCX/CAR SES/RMA
Sioux Falls Regional Sanitary Landfill Sioux Falls, SD LFG 2008 CCX FE
Tatanka Wind Farm Forbes, ND CE 2008 REP SL

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2007 Project Portfolio

Status: verified
Total metric tons CO2: 212,040

The projects listed below detail our final portfolio for customers who purchased offsets from the main TerraPass portfolio between January 1, 2007 and December 31, 2007. The listing is verified and audited.

Read the third-party auditor report (pdf) »

2007 Projects

Project name Location Type Vintage year Standard Verifier
Blue Canyon Wind Farm Anadarko, OK CE 2007 SL Verified
Clover Hill Dairy Campbellsport, WI FP 2007 CCX SES
Foote Creek I Wind Farm Arlington, WY CE 2007 G-E REC SL
George DeRuyter and Sons Dairy Outlook, WA FP 2007 CCX SES
Greater Lebanon Refuse Authority Lebanon, PA LFG 2007 CCX RSGA
Green Valley Dairy Krakow, WI FP 2007 CCX SES
Haubenschild Farms Dairy Princeton, MN FP 2008 CCX SES
Hilarides Dairy Lindsay, CA FP 2007 CCX SES
Holsum Elm Dairy Hilbert, WI FP 2007 CCX SES
L.P. Gill Landfill Jackson, NE LFG 2008 CCX FE
Leaning Juniper I Wind Farm Arlington, OR CE 2007 G-E REC SL
Nobelhurst Farms Linwood, NY FP 2008 CCX SES
Rock River Wind Farm Arlington, WY CE 2007 G-E REC SL
Scenic View Dairy I Fennville, MI FP 2007 CCX SES
Sioux Falls Regional Sanitary Landfill Sioux Falls, SD LFG 2007 CCX FE
Vanderhaak Farms Dairy Lynden, WA FP 2007 CCX SES

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2006 Project Portfolio

Status: verified

Total metric tons CO2: 220,426,931