Shop Solar
Solar panels, batteries, inverters and complete kits. The parts the Sunbloc calculators recommend come from here.
Visit store →Sunbloc hub
Engineering resources
Reference material, tools, and standards worth bookmarking before you design.
Vendors
Affiliate disclosure: some links in this section may earn Sunbloc LLC a commission.
Amazon picks
Parts and tools we recommend on Amazon, with a note on why each one made the list.
Visit store →GoSun
Solar ovens, coolers, fans and chargers for cooking and power on the go.
Visit store →BougeRV
Portable fridges, solar panels and off-grid power gear for RVs, camping and overlanding.
Visit store →Electrical Codes & Compliance
SolarAPP+ (NREL)
NREL's automated code-compliance and plan-review tool for residential systems
Access resource →Solar America Board for Codes and Standards (SolarABCs)
Technical peer-reviewed reports on global grounding, utility scale, and safety metrics
Access resource →ABYC E-11 Standard Portal
Core regulatory framework governing AC and DC electrical safety systems for marine environments
Access resource →National Electrical Code (NEC) / NFPA 70
Free digital access portal for Articles 250 (Grounding), 310 (Ampacity), and Chapter 9
Access resource →RVIA (RV Industry Association) / ANSI LV Standard
Mandatory safety criteria governing low-voltage DC chassis-ground paths and overlanding vehicle wiring
Access resource →Environmental & Sizing Data Engines
ASHRAE Climatic Design Conditions
Absolute ambient temperature profiles used for code-compliant terminal wire derating loops
Access resource →NREL National Solar Radiation Database (NSRDB)
Meteorological solar irradiance data engines used to calculate absolute peak sun hours
Access resource →ASCE 7 Hazard Tool
Engineering wind-load, structural hazard, and environmental metrics for mechanical racking layouts
Access resource →Hardware Listings & Industry Standards
Solar Energy Industries Association (SEIA)
National supply-chain tracking, federal market updates, and commercial policy standards
Access resource →Database of State Incentives for Renewables & Efficiency (DSIRE)
Comprehensive nationwide index of clean energy tax credits, utility rebates, and financial policies
Access resource →UL Product iQ / OSHA NRTL Registries
Official certification database to verify authentic UL 1973 and UL 9540A thermal runaway safety listings for server rack lithium banks
Access resource →Professional Training & Tooling
NABCEP Certifications Portal
Explanations of PV Installation Professional (PVIP) and Design Specialist tracks
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