PG&E NEM 3.0 Solar & Battery Payback Math (California)
Northern and Central California homeowners face some of the highest electricity rates in the continental United States ( $0.44 to $0.64/kWh on PG&E E-ELEC). Here is the exact mathematical model showing how PG&E's Solar Billing Plan (NEM 3.0) works and how to engineer a 4.5-year payback.
1. PG&E E-ELEC Tariff & Hourly Export Reality
| Time Window (PG&E E-ELEC) | PG&E Retail Import Price | Typical ACC Export Credit | Optimal Battery Strategy |
|---|---|---|---|
| Off-Peak (Midnight – 3:00 PM) | ~$0.39 – $0.43 / kWh | $0.03 – $0.05 / kWh | Zero Export · Charge 14.3kWh LFP Battery to 100% |
| Part-Peak (3–4 PM & 9 PM–Midnight) | ~$0.45 – $0.51 / kWh | $0.07 – $0.14 / kWh | Run home loads from solar + battery |
| Peak (4:00 PM – 9:00 PM Daily) | ~$0.58 – $0.64 / kWh | $0.18 – $2.80+ / kWh (Sept) | 100% Battery Self-Consumption + Sept Grid Export |
Calculate your exact PG&E ZIP code savings: Launch the California Solar + Battery Calculator →
Frequently Asked Questions
What rate schedule is required for PG&E solar customers under NEM 3.0?
All new PG&E residential solar customers interconnecting under the Solar Billing Plan (NEM 3.0) are placed on the mandatory E-ELEC electrification Time-of-Use tariff, which includes a $15/month fixed base services charge and steep 4:00 PM – 9:00 PM peak pricing ($0.56–$0.64/kWh in summer).
How much does PG&E pay for exported solar electricity under NEM 3.0?
PG&E credits exported solar energy using the CPUC Avoided Cost Calculator (ACC). During sunny midday hours (10 AM – 3 PM), export credits average just $0.03 to $0.05/kWh—making a 10–15kWh home battery essential so you store midday power and use it yourself from 4 PM to 9 PM.
What is the September evening ACC export bonus on PG&E?
During specific high-stress grid hours in August and September (especially 6:00 PM – 8:00 PM), PG&E's ACC export rate spikes above $2.00–$3.00/kWh. A smart hybrid inverter (such as the EG4 18kPV or EcoFlow Delta Pro Ultra) can automatically discharge stored battery power during those September evenings to rack up hundreds of dollars in bill credits.
Skip the $14,000 Installer Markup: Direct-Purchase Hardware & Vetted Quotes
Turnkey solar salespeople routinely charge $3.60–$4.80/W by bundling 30% loan dealer fees and $12,000+ battery margins. Buying Tier-1 UL9540 hardware directly—either DIY or hiring a local licensed electrician ($1,500–$2,500)—cuts total cost by 50–65%.
EG4 18kPV Inverter + 14.3kWh PowerPro WallMount
The gold-standard UL9540 all-in-one hybrid system. Pair an 18kW PV input hybrid inverter (200A pass-through) with an indoor/outdoor IP65 14.3kWh LiFePO4 WallMount battery—saving $12,000+ vs turnkey quotes.
- 18kW PV Input / 12kW Continuous AC Output (200A Pass-Through)
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- UL9540 & UL1741-SB Certified for Permit Approval
EcoFlow Delta Pro Ultra (6kWh–30kWh Modular)
Skip the $30,000 contractor quote and 6-month utility interconnection wait. Delivers 7.2kW–21.6kW continuous 120V/240V split-phase output and 5.6kW Solar Input right out of the box—expandable up to 90kWh.
- 7,200W–21,600W 120V/240V Split-Phase Output
- 6.1kWh LFP Stackable Battery (scales to 30kWh–90kWh)
- 5,600W Solar Input — Zero Roof Permit Required for Portable PV
Renogy 48V Off-Grid & Hybrid LFP Solar Kit
Complete modular 48V architecture combining high-efficiency N-type bifacial panels, a 48V 3,500W–5,000W MPPT inverter-charger, and smart modular LiFePO4 storage at ~$1.15/W hardware cost.
- 48V High-Efficiency Bus (75% lower copper wire loss)
- Modular 48V 50Ah / 100Ah Smart LiFePO4 Battery Bank
- Complete Plug-and-Play MPPT All-in-One Controller
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