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Commercial solar installation in Southern California
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Commercial Solar ROI: Demand Charges, ITC & MACRS Explained

By Solar Topper Team

Commercial solar ROI for Orange County businesses: demand charge math, tax stack, PPA vs cash, and case study framework.

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Demand charge math

SCE commercial bills often include $/kW demand charges based on peak usage. Solar reduces energy charges immediately; batteries or load shifting attack demand peaks.

Demand charge math — Commercial solar installation in Southern California
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Demand charge math

MACRS and ITC stack

30% ITC plus accelerated depreciation can yield 50%+ first-year tax benefits on profitable entities—model with your CPA.

MACRS and ITC stack — Commercial solar installation in Southern California
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MACRS and ITC stack

PPA vs cash

PPAs trade tax benefits for zero upfront cost. Cash purchases maximize lifetime savings if capital is available.

PPA vs cash — Commercial solar installation in Southern California
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PPA vs cash

Case study framework

Document baseline interval data, post-install demand profile, and true payback. See case studies and commercial solar OC.

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