Percentage-of-Income Payment Plans (PIPP)

Percentage-of-Income Payment Plans (PIPP)

Percentage-of-Income Payment Plans improve energy affordability by capping utility bills at a percentage of household income.

IMPACT AREAAffordability
TOPICUtility bills, assistance
REGIONState, Utility
AFFORDABILITY PATHWAYHousehold Protections
OVERSIGHTUtility Commission, Energy Offices
POLICY MECHANISMLegislation, Regulation

Challenge

Roughly a quarter of  households across the country are “energy-burdened,” meaning they pay more than 6% of their income towards energy bills.1 Urban low-income households pay an average of 8.3% of their incomes towards energy bills, but some are even higher: an estimated one-quarter of urban low-income households pay more than 15.2% of their income for energy.2 Meanwhile, average rural low-income households face energy cost burdens of 9.5%.3 Energy affordability is an escalating challenge which forces households to face difficult trade-offs between paying their energy bills or for other essential needs, including food, medicine, and housing. Lack of utility bill payment can also lead to utility disconnections, which put vulnerable populations such as children and the elderly at particular risk.

Policy Solution

Percentage-of-Income Payment Plans place a cap on utility bills at a percentage of household income. This cap is typically set such that total energy bills—e.g. combined gas and electricity bills—do not exceed 6% of income for low-income households. Lower thresholds may be set for the lowest-income households.

Model Policy Features

Key policy components that make PIPPs effective include:

Potential Policy Drawbacks and Pitfalls

  • PIPPs help improve energy affordability, but alone they do not address the root causes of high energy cost burdens. If the money for a PIPP runs out, households will face the same affordability challenges as before. PIPPs therefore should be combined with root cause policies that help reduce energy bills, such as energy efficiency and weatherization . 
  • Policy design can also significantly impact enrollment levels—and therefore effectiveness—of PIPPs; many existing PIPP programs report very low enrollment of eligible customers.
  • Unlike discounted rates for low-income households, PIPPs reduce some the price signals that would potentially encourage energy-saving behavior (e.g. conservation); however, such conservation is often out of reach for renter households or those unable to afford energy efficiency measures, and so PIPPs can help ensure bills are reduced to an “affordable” threshold in a way that discounted rates cannot.
  • Does not affect bills for propane or fuel oil.

Complementary Policies

Complementary policies include: 

  • Bill credits, arrearage management plans, and disconnection protections to help pay for bills and reduce the impacts of late payments.
  • Weatherization, residential solar+storage programs, efficient residential electrification and community solar to help systemically reduce energy demand and, in turn, energy bills and the overall funding required for a PIPP program.

1. Colorado Percentage-of-Income Payment Plan

Details:

  • Applies to households making less than 80% of the Area Median Income.4 
  • PIPP is set such that bills for all-electric customers are capped at 3-6% of income (depending on income level); 2-3% for electricity and 2-3% for gas for dual-fuel households. Households with incomes under 75% of the federal poverty limit are eligible for the lowest caps.5 
  • Requires that households already qualify for other programs, such as the Weatherization Assistance Program, Utility Commission Bill Help Program, Energy Outreach Colorado Past-Due Bill Payment Assistant Program, or Low-Income Energy Assistance Program. 
  • Applies to specific subset of Colorado utilities.
  • Participation in PIPP is coupled with arrearage forgiveness.
  • Administered by each utility and overseen by the Colorado Utility Commission;6 first administered as pilot programs and then fully enabled after the Utility Commission required utilities to begin providing utility assistance and arrearage forgiveness.789

Challenges:

  • Insufficient funding for all households, leading to waitlists for some utilities. 
  • Lack of automatic enrollment.
  • Inconsistent outreach to eligible households, low awareness (even for enrolled households), and inconsistent program naming. 
  • Barriers have contributed to very low enrollment: only 8% of eligible households are enrolled. Approximately 11% of Colorado households likely qualify.10

  1. Drehobl, A., L. Ross, and R. Ayala. (2020). How High Are Household Energy Burdens? Washington, DC: American Council for an Energy-Efficient Economy. ↩︎
  2. Ayala, R. and Dewey, A. (2024). Data Update: City Energy Burdens. Washington, DC: American Council for an Energy-Efficient Economy. ↩︎
  3. Ross, L., Drehobl, A., and Stickles, B. (2018). The High Cost of Energy in Rural America: Household Energy Burdens and Opportunities for Energy Efficiency. Washington, DC: American Council for an Energy-Efficient Economy. ↩︎
  4. Energy Outreach Colorado. Percentage of Income Payment Plan. Accessed October 12, 2025. ↩︎
  5. Offenstein, J., Johnson, C. Bohannan, T. and Thomas, A. (2020). Evaluation of the Percentage of Income Payment Plans. ADM for the Colorado Energy Office. ↩︎
  6. Offenstein, J., Johnson, C. Bohannan, T. and Thomas, A. (2020). Evaluation of the Percentage of Income Payment Plans. ADM for the Colorado Energy Office. ↩︎
  7. Colorado Public Utilities Commission, Rules Regulating Electric Utilities, Low-Income Energy Assistance Act, 4 Colo. Code Regs. § 723-3-3411. ↩︎
  8. Colorado Public Utilities Commission, Rules Regulating Gas Utilities, Low-Income Energy Assistance Act, 4 Colo. Code Regs. § 723-4:4411. ↩︎
  9. LIHEAP Clearinghouse. (2016). State PBF/USF History, Legislation, Implementation: Colorado. ↩︎
  10. Offenstein, J., Johnson, C. Bohannan, T. and Thomas, A. (2020). Evaluation of the Percentage of Income Payment Plans. ADM for the Colorado Energy Office. P. 7 ↩︎