Independent clean-energy guides

Confident decisions for solar, batteries, and home backup power.

NerdVolt turns renewable-energy headlines, product categories, and installation tradeoffs into clear guidance for homeowners, installers, and energy readers.

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Plan the system before buying hardware.

Compare panels, batteries, charge controllers, inverters, and backup loads with guides written around real design decisions.

10refreshed core guides
600+articles organized by topic

Troubleshoot an off-grid systemPlan a home microgrid

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Solar and battery calculators

Size a solar array, estimate backup runtime, check inverter capacity, calculate payback, and sanity-check wire voltage drop.

Solar sizingSolar System Size CalculatorEstimate array kW and panel count.Backup powerBattery Backup Runtime CalculatorEstimate how long critical loads will run.All toolsOpen the calculator librarySolar, batteries, inverters, EV charging, savings, emissions, and voltage drop.
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Updated practical solar guides

Start with the refreshed guides most likely to help with real system decisions: troubleshooting, sizing, backup loads, batteries, inverters, and roof constraints.

TroubleshootingOff-Grid Solar Troubleshooting GuideBatteries, inverters, panels, and charge controllers.PlanningHome Solar Microgrid GuideDesign, islanding, costs, permits, and backup scenarios.SizingTiny Home Solar GuidePanels, batteries, inverters, and critical loads.EquipmentMPPT vs PWM Charge ControllersChoose the right controller for your battery system.Rooftop solarOptimizers vs MicroinvertersMLPE tradeoffs for shaded or complex roofs.DesignSolar Inverter Sizing GuideMatch inverter, panels, batteries, and loads.
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Recent renewable-energy reporting and explainers, organized into scannable cards.

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