Feasibility Studies Offered

1) Solar Feasibility Study New Building

Project Eligibility:

  • Must be in Oregon, be Portland General Electric or Pacific Power customer

  • Have at least 1,500 square feet of contiguous, un-obstructed and un-shaded roof area available for solar

  • TSRF must be 75 percent or greater at all points within the Solar Roof Area.

  • Be able to meet either ETO Solar Ready Commercial Design and Construction Requirements or ETO Solar Electric Installation Requirements

ETO Incentive AmounT:

  • Project Owner is reimbursed for 90% of eligible, incurred costs to conduct the Solar Feasibility Study, up to a maximum amount of $1,700.

  • Projects that fall under Oregon’s “1.5% for green technologies” requirement are eligible to apply for Solar Feasibility incentives and Energy Trust’s Solar Electric equipment installation incentives, but not for any Solar Ready incentives.

Study Includes:

  • Executive summary identifying key findings from the study and recommendations for next steps.

  • Description of how and when the solar analysis was conducted

  • Summary and square footage of the total roof area as well as the roof area available for solar (“Solar Roof Area”), including plans to minimize impact of rooftop equipment, roof features, trees and landscaping, and other existing or planned buildings adjacent to the property.

  • Description and documentation of the solar resource available at the Solar Roof Area. Describe any scenarios that would improve or diminish the Total Solar Resource Fraction (TSRF) as well as strategies to ensure minimum requirements can be met.

  • Description of the capacity, expected annual electricity production, tilt and orientation of the system for all proposed scenarios.

  • Project Owner’s financial summary of the estimated cost, including any estimated tax credits, accelerated depreciation, special grants, or Energy Trust incentives, as may be applicable for Project Owner’s potential system.

  • Discussion of any other design, permitting or zoning considerations that may affect a potential solar design, such as roof accommodations, roof material life, and electrical room and panel accommodations or structural upgrades

2) Solar Development Assistance Feasibility Study

Project Eligibility:

  • Projects are not eligible to apply for this incentive if requesting assistance under ETO New Buildings Solar Ready or ETO Solar Plus Storage incentives.

  • Project Owner must be a public entity, non-profit entity, or non-residential customer planning to pursue a (PGE or Pacific Power) utility grant.

  • The proposed solar system project studied must be capable of meeting Energy Trust’s Solar Electric Installation Requirements

ETO Incentive Amount:

  • Project Owner is reimbursed for 90% of eligible, incurred costs to conduct the Solar Feasibility Study, up to a maximum amount of $1,800.

  • Project is eligible for the Extended Installation Incentive equal to 75% of the business incentive rates available at the time of application with an extended reservation period of 2 years. The project is not eligible for a standard installation incentive.

Study Includes

  • Solar Resource Assessment report showing the performance impact of shading, system tilt and orientation.

  • Single line diagram that shows planned electrical components, plus main service panel and utility connection, PV string wiring, conductor and ground wire types and sizing, length of wire runs, conduit types and sizing, AC & DC breaker sizing and voltage drop calculations, and a detailed schedule of system components.

  • Drawing of PV system physical layout that shows the locations of installed modules and inverter(s), location of all applicable electrical panels and meters, roof or installation site layout, pre-existing renewable energy systems, and the location where the lowest TSRF measurement was taken

  • Executive summary including a description of key findings, solar analysis, and estimated project timeline.

  • Financial summary with estimated cost, including any estimated tax credits, accelerated depreciation, grants, and potential Energy Trust incentives, as may be applicable to the proposed system installation.

  • A brief outline of any design, permitting, zoning, structural, electrical, or interconnection considerations that may affect the potential system design, project timeline or installation cost.

3) Solar Development Assistance Feasibility Study + Storage Option

Project Eligibility:

  • Exact same as Solar Development Assistance Feasibility Study

ETO Incentive Amount:

  • Project Owner is reimbursed for 90% of eligible, incurred costs to conduct the Solar Feasibility Study, up to a maximum amount of $1,800.

  • Project is eligible for the Extended Installation Incentive equal to 75% of the business incentive rates available at the time of application with an extended reservation period of 2 years. The storage portion of the project is not covered. The project is not eligible for a standard installation incentive.

Study Includes

  • Energy storage design option including layout and SLD

  • Solar Resource Assessment report showing the performance impact of shading, system tilt and orientation.

  • Single line diagram that shows planned electrical components, plus main service panel and utility connection, PV string wiring, conductor and ground wire types and sizing, length of wire runs, conduit types and sizing, AC & DC breaker sizing and voltage drop calculations, and a detailed schedule of system components.

  • Drawing of PV system physical layout that shows the locations of installed modules and inverter(s), location of all applicable electrical panels and meters, roof or installation site layout, pre-existing renewable energy systems, and the location where the lowest TSRF measurement was taken

  • Executive summary including a description of key findings, solar analysis, and estimated project timeline.

  • Financial summary with estimated cost, including any estimated tax credits, accelerated depreciation, grants, and potential Energy Trust incentives, as may be applicable to the proposed system installation.

  • A brief outline of any design, permitting, zoning, structural, electrical, or interconnection considerations that may affect the potential system design, project timeline or installation cost.

4) Solar Plus Storage Full Feasibility Study

Project Eligibility:

  • Project owner is a non-residential customer and the site must have at least 1,500 square feet of contiguous, un-obstructed roof area

  • Be able to meet either ETO Electric Installation Requirements or ETO Solar Ready Commercial Design and Construction Requirements

ETO Incentive Amount:

  • Project Owner is reimbursed for 50% of eligible, incurred costs to conduct the Solar Feasibility Study, up to a maximum amount of $2,500.

  • Projects that fall under Oregon’s “1.5 percent for green technologies” requirement are eligible to apply for Solar plus Storage Feasibility incentives and Energy Trust’s Solar Electric equipment installation incentives, but not for any Solar Ready incentives.

  • Energy Trust does not offer additional equipment installation incentives for energy storage beyond the standard solar incentive for the PV portion.

Study Includes

  • Energy storage design option including layout and SLD

  • Solar Resource