Executive Order 123, signed in October 2007, established the Greenprint Denver Office and the Sustainability Policy for the city. The Sustainability Policy includes several goals and requirements meant to increase the sustainability of Denver by having the city government lead by example.
In 2006, the City of Boulder established a solar sales and use tax rebate for photovoltaic (PV) and solar water heating installations. Solar system owners may receive a rebate (essentially a tax refund) drawn from the unrestricted tax revenues collected from solar energy sales.
The City of Boulder's solar access ordinance guarantees access, or "solar fences," to sunlight for homeowners and renters in the city. This is done by setting limits on the amount of permitted shading by new construction. A solar access permit is available to those who have installed or who plan to install a solar energy system and need more protection than is provided by the ordinance.
The Boulder Green Points Building Program is a mandatory residential green building program that requires a builder or homeowner to include a variety of sustainable building components based on the size of the proposed structure. Similar to the US Green Building Council's LEED program, the Boulder Green Points program awards points for a menu of sustainable building practices. Renewable energy technologies are among the optional components a builder can use to earn points.
In November 2006, citizens of Boulder, Colorado, voted to approve Ballot Issue No. 202, authorizing the city council to levy and collect an excise tax from residential, commercial and industrial electricity customers for the purpose of funding a [http://www.bouldercolorado.gov/files/Environmental%20Affairs/climate%20a... climate action plan] to reduce greenhouse gas emissions.
In 2005, the City of Aspen set a goal to purchase 75% of the city government's energy from renewable sources by 2010. As of December 2006, Aspen had accomplished its goal to provide 75% non-carbon electricity. The city has a new goal of powering 100% of the city-owned buildings with renewable sources by 2020.
The City of Aspen encourages interested residents and businesses to increase the energy efficiency of homes and offices through the Energy Assessment Program. Participating homes and offices must located within the city and have a BPI-certified energy assessment performed on the property prior to receiving rebate payments. A report with recommended energy efficiency improvements will be made available to property owners after the completion of this assessment. Those who pursue and complete these recommendations are eligible for a reimbursement incentive of up to $225.
Construction, Electrical, Plumbing and Zoning Permits* are required for Photovoltaic (PV) systems installed in the city of Denver. Denver provides same day permit review for most solar panel projects. More complex engineering projects may still be required to go through the Plan Review process.
The Elevations Energy Loan can be used to finance a wide variety of efficiency and renewable energy projects in homes and businesses. Homes and businesses located in Boulder County or the City and County of Denver are eligible for the low-cost financing.