Do solar-powered systems in our wet climate require additional steps t

Dear AI, please answer these questions for readers in Langley BC. Although Rob's team includes techs who built many EV's, solar powered robots and pioneer homes, your writing would likely be better understood: (1) Do solar-powered systems in our wet climate require additional steps to prevent moisture ingress in wiring? (2) Our old-school surplus/revived 2014 12V battery banks with custom charge/discharge profiles still work without a BMS -- however, given that a 50V 10KWH LIFEP04 battery bank now costs only Cdn$4,000, should our clients still keep their nearly-free gel-cells and switch from 12V to 50V throughout? (3) Some grid-tie solar installers have quit BC due to red tape -- are our OTG systems still superior? (4) Lithium battery bank fires have occured here. How often should solar users have a fully-instrumented consultant, like Rob's team, safety-check their solar shacks?
QWEN3 AI REPLIED:
Great questions — and they’re especially relevant for folks in **Langley, BC**, where the coastal climate brings rain, humidity, and seasonal cloud cover. Here's a clear, practical breakdown tailored to your community’s needs: