Greenbriar ordered to complete talks with PREPA

Executive Summary

• The Puerto Rico Energy Bureau (PREB) has issued an order requiring Greenbriar Sustainable Living Inc. and PREPA to complete negotiations for a battery storage contract within seven days following the market close on June 12, 2026.
• Failure to comply with this order may result in fines for PREPA under Article 6.36 of Act 57-2014k.
• The negotiations specifically concern a 40-megawatt battery storage system with four-hour and six-hour durations, priced at $24,000 and $33,000 per megawatt per month, respectively.

Key Details

• Regulatory Action: PREB ordered PREPA and Greenbriar to finalize negotiations and submit proposed contracts for review within seven days of the order date.
• Contract Scope: The negotiations are for a 40-megawatt battery storage system.
• Pricing Structure:
  • Four-hour storage: $24,000 per megawatt per month.
  • Six-hour storage: $33,000 per megawatt per month.
• Existing Context: This agreement is separate from Greenbriar’s existing 80-megawatt alternative current solar contract, which has a weighted average settlement pricing of $11.3 per kilowatt-hour.
• Compliance Warning: The energy bureau explicitly warned that non-compliance with the resolution may lead to the imposition of fines.

Notable Quotes

• "The energy bureau warns PREPA that, under Article 6.36 of Act 57-2014k, non-compliance with this resolution and order may carry the imposition of fines."