NABCEP PVTS case studies

NABCEP PVTS · Put your knowledge to work in context.

NABCEP's PV Technical Sales credential sits inside the family of NABCEP board certifications, alongside the PV Installation Professional, the Energy Storage Installation Professional (ESIP), and the Associate Program credentials. What the public source material makes clear is the spine of the credential: NABCEP publishes a dedicated PV Technical Sales Job Task Analysis, described as a comprehensive JTA for PV Technical Sales Professionals. The NABCEP PVTS case studies are 5 cases and about 4,188 words.

Shaded South Roof, Busbar Limit, and a Four-Year Payback Claim

A homeowner in a utility territory with 1:1 net metering, a monthly $12 minimum bill, and non-bypassable charges on imports asks for a proposal that offsets 100% of 10,800 kWh/year. The south roof plane can hold 24 modules, but a chimney shades the lower-left corner until 10 a.m.

948 words, about 5 min 2

Commercial Demand Charges and the 300 kWac Interconnection Threshold

A food-distribution warehouse has a 480 V service, 400 kW peak demand, 1.2 GWh/year, and a demand ratchet of 80% of the highest winter peak for 12 months. The utility offers net billing: exports are credited at avoided energy cost (~$0.045/kWh), not retail, and demand charges are based on the highest 15-minute interval each month.

843 words, about 4 min 3

Two Batteries, a Heat Pump, and a Three-Day Whole-Home Backup Request

A homeowner with a 9.6 kWdc PV system and a 200 A main panel wants "whole-home backup" for a 3-day outage. Critical loads include a 1/2 hp well pump (LRA 48 A at 240 V), a variable-speed heat pump (soft start, 3.5 kW running), refrigerator, freezer, lights, router, and a 1.5 kW microwave.

790 words, about 4 min 4

Tax-Exempt Church, Direct Pay, and a Roof That Cannot Carry the Array

A 60-year-old church with a 12,000 ft² low-slope roof wants a 50 kWdc PV system. The roof membrane is 12 years old and has a 5-year remaining warranty; the structural engineer says the roof can support 4 psf additional dead load, but the PV system plus ballast is 6 psf.

820 words, about 4 min 5

Off-Grid Cabin vs a $57,000 Line Extension

A rural cabin owner has a 1,200 ft distance to the nearest utility pole. The utility quotes a 48,000 line extension plus a 9,000 transformer charge; the owner would also pay a monthly service charge of $38.

787 words, about 4 min