Articles & Analysis

FMVSS 305a Explained: The Next Era of EV Battery Safety

FMVSS No. 305a, effective February 2025, rewrites the federal framework for EV battery safety — covering thermal runaway venting, crash isolation, and the new 49 CFR Part 561 emergency documentation requirement. Here's what each provision does and what it means for the conversion community.

Rivian Reliability: Growing Pains Persist as the Brand Matures

As of mid-2026, Rivian builds compelling vehicles — but Consumer Reports still rates both the R1T and R1S below average for reliability. A federal suspension investigation, 17 combined recalls on 2025 models, and a thin service network mean the company has not yet made the transition from promising startup to mature automaker.

High Gas Prices Aren't Saving New EV Sales

The Hormuz crisis pushed US gasoline prices up 43% — but the EV market isn't simply booming. New sales are down 25–30%, used EVs are exploding, and Europe is accelerating hard.

Section 25D Battery Storage Credit Is Gone for New Installs — But 2025 Filers Still Have Until October

The IRA's 30% battery storage credit was terminated December 31, 2025. Installed in 2025? You have until October 15 to claim it on an extended return.

Complete Guide: Building a 20kWh Home Battery for Under $3,000

Step-by-step guide covering cell sourcing, BMS selection, enclosure options, permitting, and real-world performance for a DIY LFP home battery system.

NEVI Formula Program: $5 Billion in Federal EV Charging Funds, State by State

NEVI has obligated funding for hundreds of fast-charging ports. Here's where deployment stands after a 2025 funding freeze and why rollout has been slow.

USDA REAP Grants for Battery Storage: What Agricultural Producers and Rural Businesses Actually Qualify For

USDA REAP covers battery storage paired with renewables. Rural farms and small businesses can claim grants up to 50% of project cost. Here's what qualifies.

The EV Technician Shortage Is Real — and Federal Training Programs Are Racing to Close It

EV-capable technicians are in genuinely short supply. DOE programs, updated ASE certifications, and OEM training are reshaping the automotive trades.

Community Solar Crosses 10 GW: The Markets Working and the Barriers Still Blocking Growth

US community solar passed 10 GW in 2025. Annual additions contracted 25% as mature markets slowed — 2026 is expected to rebound. Which states are leading?

EU Battery Passport Regulation — What US Importers Need to Know

The EU Battery Passport takes effect February 2027. US exporters face two compliance deadlines, and the harder requirements are what most aren't ready for.

The Used EV Tax Credit Ended September 30 — What It Covered and What Buyers Do Now

The $4,000 Section 25E used EV credit was terminated for vehicles acquired after September 30, 2025. Here's what it covered and where buyers stand today.

FMVSS 305a Is Now in Effect — What It Means for OEM EVs and the Conversion Gray Zone

FMVSS No. 305a set new EV powertrain safety standards effective February 2025. Aftermarket EV conversions remain in a largely unaddressed regulatory space.

EV Software Stacks Are Going Open-Source — The Real Landscape of AGL, Eclipse SDV, and COVESA

AGL, Eclipse SDV, and COVESA are building the open-source EV stack automakers now share. Here's what standardized diagnostic APIs mean for EV owners.

Tesla Megapack Prices Fall as Utility-Scale Storage Competition Intensifies

Tesla has cut Megapack pricing as CATL and BYD drive grid-scale costs lower — improving the economics for community solar pairing and merchant storage.

Configuring a JK BMS for Non-LFP Chemistries: Sodium-Ion, LTO, and NMC

The JK BMS supports profiles beyond LFP — but defaults are set for LFP and will cause problems with sodium-ion or LTO cells. Here's what to change and why.

Solid-State EV Batteries: Toyota and Samsung SDI Advance Programs Toward Production

Toyota and Samsung SDI are advancing solid-state batteries beyond pilot scale. Here's what the chemistry delivers and what near-term buyers should expect.

UK Announces £500M Fund for Community-Owned Renewable Microgrids

The UK is directing £500M toward community solar-plus-storage microgrids, prioritizing rural and island communities with constrained grid connections.

CharIN Publishes Updated CCS2 Standard with Bidirectional V2G Support

CharIN has formalized V2G and V2H in CCS2, defining protocols, safety interlocks, and metering for bidirectional DC charging. Here's what it means.

Sodium-Ion Cells Breach $40/kWh Threshold at Volume, Undercutting LFP

CATL and HiNa have pushed sodium-ion below $40/kWh at volume — the first chemistry at that level at scale. Here's what it means and who benefits first.

What an EV Conversion Costs in 2026: A Component-by-Component Breakdown

LFP prices have stabilized while DC motors have gotten more expensive. Here's what a capable EV conversion costs today and where the value equation has shifted.

Sodium-Ion Is Ready for DIY: What the New Chemistry Means for Your Next Home Battery Build

CATL Naxtra cells hit 175 Wh/kg with 10,000+ cycles and 93% capacity at −30°C. Sodium-ion cells are available under $70/kWh. The honest case for switching.

BYD Blade Battery vs. LFP Pouches: Which Is Better for a DIY Build?

BYD Blade leads on nail-penetration safety via Cell-to-Pack. Can you source it for a DIY build, and does it outperform EVE LF280K where home storage counts?

EV Road Trip Planning in 2026: Charging Networks Compared

72,500 US fast-charging ports, 500 kW V4 stations, and NACS going universal. Use ABRP and PlugShare to plan an EV road trip that actually goes as planned.

CATL's 500Wh/kg Condensed Battery: What the Technology Actually Delivers

CATL's condensed matter battery claims 500 Wh/kg — nearly triple current LFP. Here's what the technology is, what the claims mean, and why it matters.

Rivian R2 Review: The $45,000 EV That Costs $57,990

Production started in April. First deliveries are arriving. The R2 has genuinely impressive specs — 335-mile EPA range, 210 kW peak charge, efficiency that beats the Model Y. It also costs $13,000 more than Rivian spent two years telling everyone it would.

Inverter Shootout: Victron, Sol-Ark, EG4, and Growatt for DIY Home Battery Builds

I've installed all four. Here's which one I actually recommend — and why the right answer depends on whether this is your first build—or your fifth.

What the 2025–2026 Battery Degradation Studies Actually Show — And Where They Disagree

Three major datasets — Recurrent Auto, Geotab, and Stanford — converge on some findings and conflict on others. The disagreements are as useful as the consensus.

Fast Charging's Next Phase: Why Reliability Matters More Than Range

The US crossed 74,000 public DC fast-charging ports in 2026. Coverage is no longer the defining problem. Reliability is — and the industry is optimizing for the wrong metric.