Runtime Extension - Watt Reserve

Power Math & Sizing

Power Factor in Plain English (and Why It Changes Runtime)

understanding and improving power factor

Great understanding of power factor reveals how it impacts runtime, but discovering how to improve it can significantly extend your system’s efficiency.

Watt Reserve Team
December 26, 2025

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Battery Backup Basics

Finding The Right Fit: 10 Best Portable Power Stations For 2027

A 2027 roundup compares 10 portable power stations by capacity, output and portability.…

Watt Reserve Team
November 4, 2026

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14 Best Solar Generators for Home Backup in 2027

Compare the 14 best solar generators for home backup in 2027. Find the right capacity,…

Watt Reserve Team
November 4, 2026

Battery Backup Basics

Vastly Different Fortunes For BESS In Belgium And Germany’s Capacity Market Auctions

Belgium's Elia awarded 1GW of battery capacity across two auctions. Germany's first…

Watt Reserve Team
November 4, 2026

Battery Backup Basics

BW ESS Puts Europe’s Largest BESS Into Commercial Operation In The UK

BW ESS says its 350MW/1,240MWh Hams Hall battery project in England has entered…

Watt Reserve Team
November 4, 2026