Portfolio Audit
How we keep ourselves accountable.
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 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.
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.
2021 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2021 to December 31, 2021.
Terrapass 2021 Green-e Climate Confirmation Letter
Terrapass 2021 Green–e Energy Verification
2020 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2020 to December 31, 2020.
Terrapass 2020 Green-e Climate Confirmation Letter
Terrapass 2020 Green-e Energy Confirmation Letter
2019 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2019 to December 31, 2019.
Terrapass 2019 Green-e Energy Confirmation Letter
Terrapass 2019 Green-e Climate Confirmation Letter
Terrapass 2019 Just Energy Group Retirement Audit Report
2018 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2018 to December 31, 2018.
2018 Green-e Climate Compliance letter
2018 EcoLogo Audit Approval Letter
2018 Just Energy Group Retirement Audit Report
2017 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2017 to December 31, 2017.
2017 Green-e Climate Compliance letter
2016 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2016 to December 31, 2016.
Read the independent accountant’s report (pdf)»
2015 Project Portfolio
Status: Verified
The projects listed below detail our portfolio for customers who purchased offsets from the main Terrapass portfolio between January 1, 2015 to December 31, 2015.
Read the independent accountant’s report (pdf)»
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.
Independent Carbon Portfolio Review
| 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 |
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.
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.
| 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).
view key
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.
| 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 |
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.
| 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 |
2006 Project Portfolio
Status: verified
Total metric tons CO2: 220,426,931
Terrapass’ 2006 emission reduction obligations were fulfilled from a portfolio of two-thirds greenhouse gas reductions from landfill gas capture and farm power; and one-third clean energy from wind power and landfill power. All projects met our quality criteria: independent verification, ongoing monitoring, and matched maturity. Terrapasses purchased in 2006 were fulfilled with reductions of vintage 2006. All clean energy projects & renewable energy credits were Green-e certified, and all other projects were conducted and verified according to the rules of the Chicago Climate Exchange. All projects in this portfolio are listed below.
| Project name | Location | Type | Vintage year | Standard | Verifier |
|---|---|---|---|---|---|
| CrossRoads Landfill | Norridgewock, ME | Landfill gas capture | 99,207,000 | 45 | CCX |
| Blue Canyon | Anadarko, OK | Wind | 33,465,828 | 15 | Green-e |
| Ainsworth Wind Energy Facility | Ainsworth, NE | Wind | 30,974,630 | 14 | Green-e |
| Holsum Irish Dairy | Hilbert, WI | Farm power | 16,743,937 | 8 | |
| Bos & Herrema Dairies | Fair Oaks, IN | Farm power | 14,109,440 | 6 | |
| Bavarian Landfill | Boone County, KY | Landfill power | 10,714,356 | 5 | Green-e |
| Garwin McNeilus wind farm | Dodge Center, MN | Wind | 6,613,800 | 3 | Green-e |
| Haubenschild Farms dairy | Princeton, MN | Farm power | 3,086,440 | 1 | |
| Vanderhaak Farms dairy | Lynden, WA | Farm power | 2,645,520 | 1 |
2004-2005 Project Portfolio
Status: verified
Total metric tons CO2: 14,694
CRS verified Terrapass’ total sales were 1,074 CO2-e tons in 2004 and 13,620 CO2-e tons in 2005, and that these sales were supplied with one-third Green-e RECs and two-thirds Chicago Climate Exchange carbon offsets. All projects met our quality criteria: independent verification, ongoing monitoring, and reductions which occurred consistent with the timeframe of our external auditing cycle (in this case, late 2004 through 2005). All projects in this portfolio are listed below.
| Project name | Location | Type | Vintage year | Standard | Verifier |
|---|---|---|---|---|---|
| Haubenschild Farms dairy | Princeton, MN | FP | 2004 | 17 | |
| Vanderhaak Farms dairy | Lynden, WA | FP | 2004 | 13 | |
| Garwin McNeilus wind farm | Dodge Center, MN | CE | 2004 | 11 | Green-e |
| Catawba County landfill | Blackburn Landfill, Catawba County, NC | LFG | 2004 | 11 | Green-e |
| Ainsworth Wind Energy Facility | Ainsworth, NE | CE | 2004 | 10 | Green-e |
| Chicago Climate Exchange | U.S. | CE | 2004 | 7 | CCX |
| Mountain View I and II wind projects | San Gorgonio Pass, California | CE | 2004 | 7 | Green-e |
| Cabazon/Whitewater Hill wind projects | San Gorgonio Pass, California | CE | 2004 | 3 | Green-e |
| High Winds Projects | Solano County, CA | CE | 2004 | 1 | Green-e |
| Key | |
|---|---|
| 2009-2010 portfolio | |
| Project types | |
| ACM FP LFG CE |
Abandoned Coal Mine Methane Farm power Landfill gas capture Clean energy |
| Standards | |
| CAR CCX REP VCS2007 |
Climate Action Reserve Chicago Climate Exchange (bilateral trades) Renewable Energy Protocol Voluntary Carbon Standard 2007 |
| Verifiers | |
| FE LRQA RSGA SES NSF SCS SGS DNV |
First Environment LRQA America Sustainability Inc. Richardson, Smith Gardner & Associates SES Inc. NSF International Strategic Registrations SCS Engineers SGS United Kingdom Det Norske Veritas Climate Change Services AS |
| 2008 portfolio | |
| CO2 reductions | |
| mT | Metric ton (1mT = 2,204.6 lbs = 1.102 short tons) |
| Project types | |
| FP LFG CE |
Farm power Landfill gas capture Clean energy |
| Standards | |
| CAR CCX REP VCS2007 |
Climate Action Reserve Chicago Climate Exchange (bilateral trades) Renewable Energy Protocol Voluntary Carbon Standard 2007 |
| Verifiers | |
| FE RMA RSGA SES SL TUV |
First Environment Ryerson, Master and Associates Richardson, Smith Gardner & Associates SES Inc. SingerLewak TUV SUD Americas |
| 2007 portfolio | |
| CO2 reductions | |
| mT | Metric ton (1mT = 2,204.6 lbs = 1.102 short tons) |
| Project types | |
| FP LFG CE |
Farm power Landfill gas capture Clean energy |
| Standards | |
| CCX G-E REC |
Chicago Climate Exchange (bilateral trades) Green-e Energy Renewable Energy Certificate |
| Verifiers | |
| FE RSGA SES SL |
First Environment Richardson, Smith Gardner & Associates SES Inc. SingerLewak2006 Project Portfolio |
