PV Solar Energy Storage Sizing

Technical Solutions provides engineering sizing studies for battery energy storage systems (BESS) paired with solar PV installations — determining optimal storage capacity, battery chemistry, system architecture, and control strategy for each specific application.

Service Overview

Battery storage transforms solar PV from a daytime-only generation source into a reliable, dispatchable energy system. However, storage system sizing is complex — oversized storage wastes capital, while undersized storage fails to meet backup or peak-shaving objectives. Technical Solutions provides independent engineering studies that size storage systems based on the client's actual load profile, solar generation characteristics, and operational priorities.

Scope of Work

• Load profile analysis — reviewing consumption patterns and identifying backup or peak management requirements
• Solar generation profile analysis — existing or planned PV system production data and seasonal variation
• Storage capacity calculation based on autonomy requirements, depth of discharge limits, and degradation over the system life
• Battery technology evaluation and selection — lithium iron phosphate (LFP), nickel manganese cobalt (NMC), or other chemistries based on application requirements
• System architecture design — inverter configuration, battery management system (BMS), and control strategy
• Financial analysis — capital cost, cycle life economics, payback period, and comparison with alternative approaches
• Engineering report with complete sizing results, calculations, and recommendations

Deliverables

• Storage sizing engineering report with methodology and assumptions
• System architecture diagram showing PV, storage, load, and grid interconnection
• Battery specification, capacity calculations, and degradation projections
• Economic analysis summary with lifecycle cost assessment
• Integration recommendations for existing or new PV systems
• Control strategy recommendation (self-consumption, peak shaving, backup, or hybrid)

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