The Blueprint. The Toolkit. One Price. The Blueprint + Toolkit Bundle gives you the full field-grade documentation stack for your off-grid solar build — in a single purchase. What's Included Beginner Solar Blueprint ($27 value)The complete specification document for sizing, designing, and building a residential off-grid or backup solar system. Covers the cold-weather Voc calculation, design-month rule, voltage drop protocol, NEC 125% fuse sizing, LiFePO4 battery sizing, the 48V decision framework, and the pre-charge procedure. Every formula traces to a manufacturer datasheet or NEC standard. Solar Commissioning Toolkit ($15 value)Four field documents built for the day you actually wire the system: the 50-Point Commissioning Checklist, Wire Gauge and Ampacity Table, Battery Maintenance Log, and Bill of Materials Template. Formatted for print. Designed to stand up to an inspector. Why Bundle The Blueprint tells you how to build the system correctly. The Toolkit proves you did. Most serious builders end up wanting both — this gets you there in one step instead of two. If you are buying the Blueprint, add the Toolkit. You will use it on commissioning day, and you will be glad it was already printed. 30-Day Guarantee If the documentation does not hold up on paper, full refund. No questions. You keep the files. Digital product — immediate delivery. Both files are sent to your email within minutes of purchase. If you do not receive them within 10 minutes, check your spam folder and search for "Beginner Solar."