October 2025 monthly summary for evcc-io/evcc focusing on Amber tariff rate processing improvements and foundational refactoring. Delivered 15-minute interval pricing capability and data organization to support granular energy cost calculations, enabling more accurate billing insights and paving the way for advanced pricing analytics.

August 2025 — Evcc repository evcc-io/evcc. Delivered the Hourly Electricity Tariff Pricing feature by normalizing tariffs into one-hour slots, improving charging cost accuracy and enabling better cost forecasting for customers and operators. The approach groups intervals within each hour and uses the current interval value or a computed average to determine session costs. Change committed as 11e7c13f014bf3a215f5b56cc4160324e915ddd8 with message 'Amber: normalise rates to 1-hour slots (#22870)'.

July 2025: Focused on correcting pricing semantics and extending pricing data forecasting for the EV charging platform (evcc-io/evcc). Delivered a critical bug fix for feed-in price sign and enhanced Amber API data retrieval and forecasting capabilities to improve forecasting coverage and billing accuracy for 30-minute billing customers.

June 2025 monthly summary for evcc-io/evcc focused on Amber integration documentation and parameter validation improvements to enhance configuration correctness and deployment reliability.

January 2025 monthly summary for evcc-io/evcc: Focus on data freshness for Amber tariff pricing by reverting the fetch cadence to every minute. This change primarily touches the amber.go run path and was implemented to ensure pricing information stays current with minimal code changes.