Solar Plus Storage Design Software 2026

Solar plus storage design software optimises PV and battery jointly for self-consumption, peak shaving, time-of-use arbitrage, and resilience. The category grew fast as battery costs fell and ToU tariffs spread. This guide covers the 2026 options and explains why SurgePV is the cleanest integrated workflow.

Why Solar Plus Storage Design Got Hot

Three trends converged: battery costs fell below $200/kWh installed, ToU tariffs spread (US, Australia, parts of Europe), and grid resilience became a buyer-facing concern after major outages. The result: hybrid PV + battery designs went from niche to standard on a meaningful share of residential and C&I projects.

Operating Modes Solar Plus Storage Software Handles

1. Self-consumption: maximise PV consumed on-site rather than exported
2. Peak shaving: reduce demand charges on commercial bills
3. ToU arbitrage: charge battery off-peak, discharge at peak
4. Backup / resilience: islanded operation during grid outages
5. Wholesale market participation: battery dispatch into grid markets (utility scale)

SurgePV models the first four; the fifth is specialised utility-grid territory.

What SurgePV Bundles With Solar Plus Storage Design

• DC-coupled and AC-coupled hybrid topologies
• Battery sizing recommendations from load profile, including battery SOC-aware dispatch
• 12,000-inverter database including hybrid inverter brands
• 8,760-hour hourly battery cycling computations
• Time-of-use arbitrage modelling tied to country tariffs
• Backup-mode and critical-load circuit support
• Anti-islanding protection on the single line diagram
• Bankable yield + battery dispatch in the financial model
• Auto-BOQ with battery and battery-side BOS

All on every paid plan at $1,299 to $1,899 per user per year.

Solar Plus Storage Design Across Competing Tools

Real Example: 10 kW Residential Hybrid With ToU

• Residence: 8,000 kWh/year load, ToU tariff with 4-hour peak
• PV: 10 kW SurgePV-designed array
• Battery: 13.5 kWh hybrid inverter
• ToU: ₹6/kWh peak, ₹3/kWh off-peak
• Yield (P50, SurgePV): 14,000 kWh/year

SurgePV’s hybrid model produces:

• Self-consumption rate: 78%
• ToU arbitrage value: ₹18,000/year
• Backup capacity: 18 hours essential loads
• 25-year IRR with battery: 14.8% (vs 11.2% PV-only)

Common Solar Plus Storage Mistakes

1. Sizing the battery to the PV array instead of the load profile
2. Ignoring ToU rate structure during battery sizing
3. Skipping the critical-load schedule for backup-mode design
4. Mismatching inverter and battery chemistry (AC voltage, CAN bus communications protocol, LFP vs lithium-ion chemistry)
5. Not modelling cycle life in the 25-year economics

Who Should Choose Each Tool

• Choose SurgePV for integrated PV + battery design plus the full design-to-proposal stack.
• Choose HOMER for deep off-grid and hybrid optimisation on specialised projects.
• Choose Energy Toolbase for US C&I-focused ToU arbitrage modelling.
• Choose Aurora at upper tier for US-residential hybrid with limited depth, though see our Aurora Solar alternative comparison first.

For most installers and EPCs in 2026, SurgePV is the solar design software for solar plus storage that consolidates the workflow at the lowest realised total cost.