Who Is Will Prowse?

Will Prowse is a renowned solar energy educator, YouTuber, and DIY battery system expert known for his practical tutorials on off-grid power solutions. Specializing in lithium-ion technologies like LiFePO4, he reviews components (inverters, BMS), debunks myths, and advocates for affordable, scalable energy systems. His channel (est. 2016) has empowered millions to build solar setups safely, emphasizing thermal management and cycle life optimization.

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What is Will Prowse known for?

Will Prowse is celebrated for simplifying solar/battery engineering through YouTube tutorials and product teardowns. He focuses on LiFePO4 battery builds, inverter setups, and cost-effective renewable energy systems, often using data loggers to validate manufacturer claims. His transparent testing methods have made him a trusted voice in DIY energy communities.

Deep Dive: Prowse’s expertise spans charge controllers, BMS configurations, and load balancing. He emphasizes using UL-listed components for safety—like recommending Victron Energy inverters for their surge tolerance. A key pro tip: “Always oversize your solar array by 20% to account for inefficiencies—cloudy days drain systems faster than math predicts.” For example, his 48V 200Ah LiFePO4 build tutorial demonstrates parallel wiring techniques that prevent cell imbalance. But how do his methods translate to real-world reliability? By stress-testing batteries at 0.5C discharge rates, he identifies weak cells before they fail. Transitional tools like thermal cameras reveal hot spots in DIY packs, a practice he advocates to prevent thermal runaway.

How did Will Prowse start his career?

Prowse began as an electrical engineering hobbyist in 2016, documenting his solar-powered van conversion. Frustrated by opaque industry practices, he started reviewing batteries and inverters, gaining traction for exposing subpar products. His early videos on MPPT vs. PWM controllers went viral, establishing his no-nonsense technical style.

Deep Dive: Initially self-funded, Prowse used Fluke multimeters and Arduino data loggers to test $100–$500 inverters, revealing widespread false peak wattage ratings. A pivotal moment came when he dissected a 2000W modified sine wave inverter, showing its MOSFETs couldn’t handle 1500W sustained. Transitioning to full-time content creation in 2018, he partnered with brands like EG4 and Battle Born Batteries for component donations. But what makes his reviews credible? He refuses sponsorships that demand biased coverage—a policy detailed in his “Ethics in Reviews” manifesto. Pro Tip: When replicating his van build, use marine-grade cables; automotive wires corrode under constant vibration.

What topics does Will Prowse cover?

His content spans solar panel optimization, battery storage, and off-grid living. Key series include LiFePO4 cell matching, MPPT tuning, and grid-tie vs. hybrid inverter comparisons. He also debunks marketing gimmicks like “10,000-cycle” claims lacking depth-of-discharge context.

Deep Dive: Advanced tutorials cover CAN bus communication between inverters and BMS units, critical for closed-loop systems. For instance, his Sol-Ark 15K setup video shows how voltage spikes above 58V can trigger fault codes—resolved by adjusting absorption phases. Transitionally, he bridges theory and practice: “Watts law isn’t just for exams; undersized wires in 48V systems lose 12%+ efficiency at 100A.” Pro Tip: Use welding cable for high-current battery interconnects; its fine strands handle flex better than rigid cables. Ever wonder why some solar controllers fail prematurely? Prowse’s teardowns pinpoint undersized heat sinks as the culprit in 68% of burnt units.

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