Calculate Home Solar, 100A Panel EV Load & Battery Payback — Without Sales Spam.
Instant engineering calculators built on NREL solar data, 2026 utility Time-of-Use (TOU) tariffs, and NEC Article 220.83 load formulas. Zero phone numbers or email gates required.
Plug-in / Balcony Solar ROI & Self-Consumption Calculator
Verified Yield & Payback Output
California Legal Verdict: Passed Legislature (SB 868 — Awaiting Governor Signature, Sept 2026). SB 868 passed the California Legislature in August 2026 to legalize up to 1,200W plug-in solar systems on standard 120V outlets without utility interconnection fees (effective Jan 1, 2027 upon enactment). Under NEM 3.0, combining plug-in solar with a 1.6kWh–2kWh LFP battery avoids exporting at 8¢/kWh and offsets 58¢/kWh evening peak power.
100A Electrical Panel EV Charger & Heat Pump Load Calculator
NEC 220.83 Load Calculation Result
Engineering Rule: Under NEC 220.83, the first 8 kVA of general load counts at 100%, remainder at 40%, plus 100% HVAC and 125% EV continuous load. Adding a listed NEC 625.42 EVEMS ($599) throttles charging during peak stove/AC use so your 100A panel passes inspection without a $3,500 200A service upgrade.
Home Battery Time-of-Use (TOU) Arbitrage Calculator — PG&E (Pacific Gas & Electric) — E-TOU-C / E-ELEC
TOU Arbitrage Savings Output
Under PG&E NEM 3.0 (Net Billing), daytime solar exports earn only ~8¢/kWh while 4–9 PM peak electricity costs 56¢–62¢/kWh. Storing solar or off-peak energy in a 3.8kWh–6kWh LFP battery saves $950–$1,650/year.
Top 2026 UL 3700, UK G98 & NEC 625.42 Compliant Hardware
Anker SOLIX Solarbank 2 E1600 Pro (800W/1200W Plug-in + 1.6kWh LFP)
- ✓Built-in 800W microinverter (expandable)
- ✓1.6kWh LiFePO4 battery (up to 9.6kWh)
- ✓Zero-export smart meter included
EcoFlow PowerStream / STREAM 800W Balcony Solar + 2kWh LFP Kit
- ✓Smart plug dynamic load allocation
- ✓Plug-and-play flat MC4 window cable
- ✓App-controlled TOU discharge schedule
Anker SOLIX F3800 (3.84kWh / 6000W Split-Phase 120V/240V TOU Battery)
- ✓Native 240V NEMA 14-50 output for EV & Home Panel
- ✓Built-in Time-of-Use (TOU) peak shaving mode
- ✓Expandable up to 26.9kWh
EcoFlow DELTA Pro Ultra (6.1kWh / 7200W Whole-Home TOU Arbitrage System)
- ✓7.2kW continuous 240V output
- ✓Automated NEM 3.0 & PG&E TOU optimization
- ✓0ms UPS switchover
Emporia Level 2 EV Charger (48A) + Vue Smart Home Load Management Bundle (NEC 625.42)
- ✓UL-listed NEC 625.42 Energy Management System
- ✓Real-time CT clamps throttle EV charging when stove/AC runs
- ✓Saves $2,500–$4,000 by avoiding 100A to 200A panel upgrade
Lectron V-Box Pro 48A Level 2 EV Charging Station (Configurable Amp Limit)
- ✓Hardware rotary switch to lock 16A / 24A / 32A / 40A / 48A per NEC
- ✓J1772 & NACS (Tesla) options
- ✓Wi-Fi off-peak scheduling