In May 2013 Colorado enacted legislation to enable commercial PACE programs using funds from private lenders (S.B. 212).
As of December 2015 the program authorized by the above legislation is now functioning as C-PACE (Colorado Commercial Property Assessed Clean Energy).
Property-Assessed Clean Energy (PACE) financing effectively allows property owners to secure the up-front costs of energy improvements. The amount borrowed is repaid via a special assessment on the property over a period of years. Colorado has authorized local governments to establish such programs, as described below.
Colorado authorized local governments to adopt a PACE program in May 2008 through amending counties' and cities' existing authority to create improvement districts (H.B. 1350). The law allowed a city or county board to propose an improvement district specifically for clean energy improvements via resolution or ordinance. In 2010, it was expanded to allow multiple counties, even non-contiguous counties, to form a single improvement district (S.B. 100). PACE was further expanded in 2010 (and subsequently amended in 2013) by the creation of an improvement district encompassing the entire state that had authorization to issue up to $800 million in PACE bonds (H.B. 1328 and S.B. 212).
Cities and counties wishing to provide PACE financing programs to their citizens may, by resolution, opt to join the statewide energy improvement district and tap the bond revenue raised by the improvement district. Both energy efficiency and renewable energy technologies are PACE-eligible and among the technologies from which a local government may choose include in its program. Boulder County was the first county in Colorado to implement a program using a PACE financing mechanism (see the Boulder County ClimateSmart Loan Program).
Local governments are also authorized to issue bonds to fund the PACE programs if voter approval is first attained. The board of the county (or city and county) can provide financing assistance to approved applicants who are constructing, expanding, or upgrading an eligible clean energy project by issuing tax-exempt private activity bonds for a minimum amount of $500,000 for a geothermal energy project and $1,000,000 for any other type of eligible clean energy project. The repayment term is a maximum of 15 years for geothermal projects and 10 years for any other type of eligible clean energy project. Geothermal projects are unique in that the repayment term can be correlated to the revenue stream associated with the project being financed by the bonds, subject to a maximum payment in a fiscal year of 75% of estimated project revenues in the fiscal year (see H.B. 1222).