What Would Dynamic Pricing Look Like?
From June 2026, Irish suppliers must offer half-hourly dynamic tariffs linked to the wholesale Day-Ahead Market. We simulated what 7 years of wholesale prices would have looked like as consumer rates, and how a home battery would have performed.
Hourly Consumer Rate — Dynamic vs TOU
Battery Dispatch — Dynamic Tariff (10 kWh, 5 kW)
Annual Summary: Dynamic vs TOU
Distribution of Daily Dynamic Savings (10 kWh battery)
How we build the dynamic rate: Wholesale DAM price (EUR/MWh ÷ 10) + 2.5c supplier margin + 5.5c network charges + 0.1c PSO levy, then × 1.09 for 9% VAT. Capped at 50c/kWh. This matches the CRU's mandated structure: only the energy component fluctuates; network charges and levies are fixed. The battery dispatch uses a SoC-aware dynamic programming optimizer with perfect foresight — a theoretical upper bound. Real-world capture rates would be lower (60-80% of optimal), but day-ahead pricing gives 24 hours of advance notice, making high capture rates achievable with automation.