Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.
Only the current version so far — new entries appear as the app ships updates.
Solar Inverter Sizer NEC 690 is a tools app by Rizvan Adzhoyan with 10+ downloads (about 31 estimated). +1 installs in the last 7 days. Released May 9, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Size solar inverters by NEC 690.7(A) max input voltage limits.”