PES Supply Newsroom
Technical guides, product reviews, code updates, and industry news for installers, EPCs, and project managers
AC-Coupled vs. DC-Coupled Battery Systems: Pros, Cons, and Use Cases
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Every battery-storage conversation we have at the counter eventually lands on the same fork in the road: AC-coupled...
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Battery Storage Cost Parity 2025: When Solar+Storage Beat Peaker Plants
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Sometime in 2025, without...
Virtual Power Plants 2024: How Distributed Solar+Storage Became Grid Infrastructure
A few summers back I was standing in a garage in Houston with a homeowner, a fresh Powerwall...
Batteries & Storage
View all Batteries & Storage →
AC-Coupled vs. DC-Coupled Battery Systems: Pros, Cons, and Use Cases
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Every battery-storage conversation we...
Battery Management Systems (BMS): What They Do and Why They Matter
Every lithium battery pack that is safe to own has a battery management system inside it, and every...
Home Battery Backup: Lithium vs. Lead-Acid vs. Saltwater (2026 Guide)
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Home battery backup in...
Tesla Powerwall 2 Guide (2026): Specs, Cost, Installation & What It Runs
Tesla Powerwall 2 in 2026 — 13.5 kWh specs, gateway requirements, real installed cost, what it can run...
Generators
View all Generators →New generators coverage is in the works — browse all generators articles →
Electrical & Code
View all Electrical & Code →New electrical & code coverage is in the works — browse all electrical & code articles →
HVAC
View all HVAC →New hvac coverage is in the works — browse all hvac articles →
Industry Desk
View all Industry Desk →New industry desk coverage is in the works — browse all industry desk articles →
The Latest
Battery Management Systems (BMS): What They Do and Why They Matter
Every lithium battery pack that is safe to own has a battery management system inside it, and every...
Home Battery Backup: Lithium vs. Lead-Acid vs. Saltwater (2026 Guide)
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Home battery backup in...
Tesla Powerwall 2 Guide (2026): Specs, Cost, Installation & What It Runs
Tesla Powerwall 2 in 2026 — 13.5 kWh specs, gateway requirements, real installed cost, what it can run...
Home Battery Bank Sizing Guide: How Many kWh of Storage Do You Actually Need?
Size your home battery bank from real usage data: kWh math by load, lithium vs lead-acid, and in-stock...
Battery Storage Cost Parity 2025: When Solar+Storage Beat Peaker Plants
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Sometime in 2025, without...
Virtual Power Plants 2024: How Distributed Solar+Storage Became Grid Infrastructure
A few summers back I was standing in a garage in Houston with a homeowner, a fresh Powerwall...
Battery Storage in 2022: The Year Grid-Scale Storage Went Mainstream
Updated September 2026 — content reviewed and refreshed by the PES team. For current pricing and availability, see...
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This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown rules, and standby demand keeps climbing.
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown rules, and standby demand keeps climbing.
