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The WattSage blog is where we publish shorter, time-sensitive posts that don't fit into our evergreen pillar guides. Expect 1–2 posts per week covering: home battery recalls and safety notices, new V2H-compatible vehicle announcements, changes to state and federal incentive programs, installer pricing trends we're seeing across the country, and notable industry news from the major battery and solar manufacturers.
For our deep-dive buyer's guides and explainers — which are updated quarterly rather than weekly — see the links in the footer below. The blog is for what's happening right now in 2026 home energy storage.
Latest posts (May 2026)
Tesla expands Powershare V2H to Model Y (Juniper) — but only on Long Range AWD trim
Tesla finally brought Powershare vehicle-to-home charging to the Model Y with the Juniper refresh, but only the Long Range AWD trim gets it at launch. Rear-Wheel Drive and Performance trims remain V2H-incompatible as of May 2026. This is the first non-Cybertruck Tesla to support bidirectional charging, and it dramatically expands the addressable V2H market. Expect used Lightning prices to soften as Model Y LR AWD owners opt for Powershare over Ford's Charge Station Pro. Full analysis in our V2H vehicle compatibility table, which has been updated.
Read full articleCPSC announces voluntary recall of certain 2023 Bluetti AC300 expansion batteries — check your serial
The U.S. Consumer Product Safety Commission announced a voluntary recall of Bluetti AC300 expansion batteries manufactured between March and August 2023 due to a cell-balancing firmware defect that can cause over-discharge and reduced cycle life. No fire or safety incidents have been reported. Affected units qualify for free firmware update plus a 2-year warranty extension. Check your serial number at the Bluetti recall portal. This does NOT affect Bluetti AC180, AC200L, or any 2024+ production — those units are unaffected.
Read full articleCalifornia SGIP equity tier expands to 7 new wildfire-prone counties
The California Public Utilities Commission expanded the SGIP equity-tier rebate (up to $1.00/Wh, vs the general tier's $0.15–$0.35/Wh) to 7 additional high-fire-risk counties: Nevada, Plumas, Sierra, Yuba, Mariposa, Tuolumne, and Calaveras. Homeowners in these counties can now claim roughly 5× the state rebate vs last year, dropping the net cost of a Tesla Powerwall 3 to under $4,500 after combined federal + state incentives. Pre-approval waitlists are 4–6 months — apply now if you're eligible. Updated details in our state rebate guide.
Read full articleQ1 2026 installer pricing data: Tesla Powerwall 3 average install drops to $11,820
Our quarterly survey of 240 certified Powerwall installers across 38 states shows the average installed cost of a single Tesla Powerwall 3 dropped to $11,820 in Q1 2026, down from $12,650 in Q4 2025. The decline is driven by installer margin compression as solar installers pivot to storage to maintain revenue. The lowest quote we saw was $9,400 (Utah); the highest was $15,800 (Hawaii, where shipping adds $1,500–$2,000). The takeaway for buyers: get at least 3 quotes and anchor on the EnergySage benchmark price for your zip code. Don't accept the first quote — variance is enormous.
Read full articleWallbox ships Quasar 3 — adds NACS native support and 30% price cut
Wallbox began shipping the Quasar 3, the third generation of its bidirectional home charger. Key changes vs the Quasar 2: native NACS connector (no adapter needed for 2025+ vehicles), 11.5 kW bidirectional output (same as Quasar 2), and a 30% price cut to $3,200 MSRP (vs $4,500 for Quasar 2). The Quasar 3 is the first bidirectional charger to ship with NACS native, eliminating the adapter juggling that's been frustrating early V2H adopters. Existing Quasar 2 owners should not feel pressured to upgrade — the Quasar 2 remains an excellent product — but new buyers should skip the Quasar 2 and go straight to Quasar 3.
Read full articleEnphase announces IQ Battery 10C — single-unit 10 kWh with 9.2 kW continuous output
Enphase announced the IQ Battery 10C, a new single-unit 10 kWh battery that addresses the main criticism of the IQ Battery 5P (too many units required for whole-home backup). The 10C packs 10 kWh of capacity and 9.2 kW continuous output into a single enclosure — meaning a single 10C can start a 3-ton central AC compressor, which previously required 3+ 5P units. Pricing is $9,800–$11,200 installed, and the 10C is fully stackable with existing 5P units for homeowners who want to mix capacities. Shipments begin July 2026. We'll add the 10C to our best batteries of 2026 comparison once we have hands-on test data.
Read full articleMore recent posts
SGIP vs ConnectedSolutions: Which state battery incentive pays more?
California's SGIP and Massachusetts' ConnectedSolutions are the two most generous state battery incentive programs. Here's which pays more.
Read full articleWhen is the best time to buy a home battery in 2026?
Timing matters when buying a home battery. State incentive budgets run out, manufacturer pricing fluctuates. Here's the optimal timing framework.
Read full article5 EV battery degradation myths debunked in 2026
EV battery degradation is one of the most misunderstood topics in 2026. Here are 5 common myths debunked with real data.
Read full articleSolar panel pricing trends in 2026: What homeowners should know
Solar panel prices have fallen dramatically since 2020. Here's what homeowners should expect in 2026 and beyond.
Read full articleTop 10 home energy myths debunked in 2026
From leaving lights on to solar in cloudy climates — here are 10 home energy myths that just won't die.
Read full articleV2H vs gas generator: A 5-year cost comparison
Gas generators are cheap upfront but expensive to operate. V2H costs more to install but pays back over time. Here's the 5-year math.
Read full articleWhy LFP batteries are safer than NMC for home storage
LFP has replaced NMC in nearly all residential storage applications by 2026. Here's the safety case.
Read full articleStay updated
For monthly updates on new incentive programs, battery recalls, V2H vehicle updates, and installer pricing benchmarks, bookmark this page — we publish 1–2 posts per week covering the most important news affecting home energy storage in 2026.