| Resource Type | Use Case |
| Author / Source | Kent Whitcomb (MiEnergy Cooperative); Holy Cross Energy; Vermont Electric Cooperative |
| Publication Date | 2020-2025 |
| Location | Multi-state (Colorado, Vermont, Minnesota and Iowa) |
| Initiative Type | Program, Technology, Partnership |
| Project Complexity | Intermediate |
| Recommended For | Board, Staff |
View Program Holy Cross Energy (CO) View Program Vermont Electric Cooperative (VT) View Pilot Report MiEnergy Cooperative (MN/IA)
Estimated reading time: 15 minutes
Why This Matters for Rural Electric Co-ops
Home battery programs let a co-op call on batteries in members' homes during peak demand instead of building or buying new peaking capacity. Members earn bill credits or upfront payments and keep backup power during outages.
These three co-ops show the model at different stages. Holy Cross Energy pairs an upfront rebate with monthly credits, Vermont Electric Cooperative uses a published compensation formula, and MiEnergy's early pilot offers lessons on cost and performance. Together they give a co-op a practical starting point for sizing incentives, setting member protections, and deciding whether a program is worth the investment.
Key Takeaways
| › | Aggregating home batteries into a virtual power plant lets a co-op cut peak costs without building new peaking capacity. |
| › | Both current programs pay members based on the battery capacity they make available, through upfront payments, monthly bill credits, or a mix of the two. |
| › | Clear guardrails, such as letting members choose how much capacity to share, setting a minimum battery size, and limiting dispatch events, protect backup power and build trust. |
| › | MiEnergy's pilot showed remote control works. But batteries lost about 30% of stored energy and paybacks ran 33 to 43 years, so economics need careful review. |
Implementation Considerations
- Cost or Funding Requirements: Incentives should match the co-op's actual peak savings. In the two current programs, members buy the batteries, so co-op costs are mainly rebates, credits, and program management.
- Staffing or Technology Requirements: Programs need dispatch software, compatible batteries, certified installers, and reliable home internet. Smaller co-ops may need a vendor or G&T partner.
- Time-Sensitive Information: Incentive amounts and eligible battery brands change often. Holy Cross has revised its program over time, and VEC may update its values annually.
Notable Examples
- Holy Cross Energy: Colorado co-op that pays members an upfront rebate and monthly credits through its Power+FLEX program for sharing home battery capacity during peaks.
- Vermont Electric Cooperative: Pays members to use their home batteries during peaks through its Flexible Load Program, using a published compensation formula.
- MiEnergy Cooperative: Minnesota and Iowa co-op that tested co-op-owned batteries in member homes and published detailed lessons on cost, efficiency, and control.
View Program Holy Cross Energy (CO) View Program Vermont Electric Cooperative (VT) View Pilot Report MiEnergy Cooperative (MN/IA)
Estimated reading time: 15 minutes
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