
AC-Coupled vs. DC-Coupled Batteries: Which is Best for Your Solar?
Compare AC-coupled vs. DC-coupled home batteries. Learn about conversion steps, round-trip efficiency, retrofit ease, and system resiliency.
Battery intelligence
Browse Battery Planning guides for capacity sizing, backup runtime, battery incentives, time-of-use savings, and emergency backup strategies.
17 guides
Start here
The best planning path is simple: understand your monthly energy use, estimate battery storage capacity, compare storage economics, then pair with solar only if it matches your solar-battery goals.

Compare AC-coupled vs. DC-coupled home batteries. Learn about conversion steps, round-trip efficiency, retrofit ease, and system resiliency.

Find out if a solar battery is worth the cost. Calculate your payback period under TOU rules, NEM 3.0 export credits, VPP programs, and 2026 incentives.

Guide to sizing battery backup for CPAP machines and medical devices. Learn about heated humidifier power draw, pure sine wave inverters, and DC adapters.

Compare the best home battery backup systems of 2026. Profile Tesla Powerwall 3, Enphase IQ Battery 5P, and FranklinWH aPower across capacities, specs, and warranties.

Learn how soft starters reduce AC starting surge (LRA) by 60% to 70%, allowing standard home batteries to back up central cooling systems without tripping.

Learn the total turnkey cost of home battery backup installations. Compare hardware prices, labor soft costs, smart sub-panels, and 2026 incentives.

Master guide to emergency home battery backup power. Learn about essential load panels, automatic transfer switches, motor surge currents, appliance wattages, and multi-day outage runtimes.

Learn how to choose a home battery backup system. Compare LFP vs NMC chemistry, AC vs DC coupling, turnkey installation costs, and federal tax credits.

Discover how long a 10 kWh home battery backup system will last during a blackout. Compare runtimes for basic essentials, critical loads, and central AC systems.

Learn the total turnkey cost of installing a Tesla Powerwall 3. Compare unit MSRP, labor soft costs, DC expansion pricing, and 2026 financing.

Learn how to choose the right home battery backup system. Compare LFP vs NMC chemistries, AC vs DC coupling, warranty terms, and sizing criteria.

Learn how to back up your sump pump during a blackout. Calculate startup surge watts (1/3 HP vs 1/2 HP), battery runtime, and dual float switch setups.

Learn how to size a home battery backup system for a water well pump. Understand 240V split-phase power, starting surge (LRA), and battery sizing steps.

Learn how to size a home battery backup system. Calculate essential appliance loads, peak starting surge demands, and select the correct capacity.

Learn the status of the 30% federal solar battery tax credit in 2026. Compare Section 25D expiration rules, lease options, and Form 5695 filing.

Compare LFP vs. NMC home batteries. Learn about cycle life, thermal runaway temperatures, Cobalt usage, daily state-of-charge limits, and warranties.

Learn what size inverter you need to run a house during a power outage. Calculate continuous load, motor starting surges, and pure sine wave needs.
Guide questions
Start with your daily electricity use and critical backup loads, then read the buying and sizing guides. This builds a realistic capacity baseline before you compare battery brands and installer quotes.
Guides explain chemistry tradeoffs, sizing formulas, and utility rate policies. Calculators let you enter your actual numbers to estimate required storage capacity, backup runtime, and economics.
No. Battery Planning guides are educational resources. Sizing estimates, incentive stacking, and electrical backup design should always be verified with qualified local professionals and licensed electricians.
Technology, utility rules, and tax incentives change over time. We review and update our content whenever federal tax credit rules, state rebates, utility tariffs, or brand warranties are revised.