Twin-level hybrid storage design boosts photo voltaic effectivity and reduces prices
by Robert Schreiber
Berlin, Germany (SPX) Aug 08, 2025
In an period when renewable power is reshaping electrical energy grids, photo voltaic photovoltaic (PV) energy nonetheless faces a core problem: the solar hardly ever delivers power precisely when demand peaks. Aalborg College researchers have launched a dual-level design for hybrid power storage methods (HESS) that might make solar energy extra reliable and economical.
The system integrates lithium-ion batteries with supercapacitors, tackling the intermittency downside whereas decreasing battery degradation. Over a yr of testing, the method minimize battery biking by as much as 13 p.c, prolonged battery lifespan, and preserved the system’s self-sufficiency with out elevating working prices.
The design additionally stabilized grid efficiency by controlling energy ramp charges and optimizing power movement between PV arrays and the grid. “By intelligently combining lithium-ion batteries with supercapacitors, we’re leveraging the strengths of every know-how,” the researchers stated. “Supercapacitors deal with the speedy energy fluctuations that sometimes degrade batteries, whereas the batteries handle longer-term power storage wants.”
An adaptive filter dynamically distributes energy between the 2 storage varieties in actual time, guaranteeing every operates inside supreme limits. This not solely extends element life but additionally lowers substitute bills.
Subsequent steps will incorporate extra detailed battery getting older fashions and real-world cell testing, alongside refined financial assessments. The workforce sees the dual-level design as a step towards extra sensible, cost-effective photo voltaic power storage that may speed up the transition to wash power.
Analysis Report:Dual-level design for cost-effective sizing and power management of hybrid energy storage in photovoltaic systems
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