Solar Monitoring Apps Compared: Enphase, SolarEdge, Tesla, and SMA for California Homeowners

Why Solar Monitoring Actually Matters in 2026

A solar system is a 25-year asset that produces a measurable output every single day. If the output drops, no warning light flashes on your roof. The panels look identical whether they are pushing 380 watts or 110 watts. Without a monitoring app, you find out something is wrong when your true-up bill arrives in March and it is $1,400 higher than it should be.

Monitoring catches three categories of problems early. The first is silent panel failure, which usually shows up as one or two panels producing about 60% of their neighbors. The second is microinverter or optimizer dropout, where a single unit stops reporting and you lose that panel entirely. The third is gradual soiling, where dust and pollen film cuts production 8 to 14% over a summer in our climate, and the only way to know is to compare this June to last June at the panel level.

Monitoring also validates the production estimates your installer used to sell you the system. If your proposal said 11,200 kWh per year and you only see 9,400 kWh in the first 12 months, you have a warranty conversation to start, and the data export from your app is the entire foundation of that claim.

Under NEM 3.0 in California, monitoring shifted from useful to essential. Every kWh exported between 4pm and 9pm is worth roughly three to five times what midday export is worth, so understanding your hourly production profile is now a financial exercise, not a curiosity.

Enphase Enlighten: The Panel-Level Standard

Enphase systems use one microinverter per panel, which means every single module reports its own production data independently. The Enlighten app, which Enphase has slowly rebranded as the Enphase App, shows you a roof-shaped grid where each panel is a colored tile. Green means producing, yellow means underproducing, red means offline.

The hardware that makes this work is the Envoy, now called the IQ Gateway. It is a small white box, usually mounted near your main panel, that polls each microinverter every 5 minutes and uploads the data to Enphase servers over your home WiFi or cellular backup. If your WiFi drops, the gateway stores data locally for up to about a week before older data starts rolling off.

What you actually see in the app: total system production by day, week, month, and year. A lifetime production counter in kWh and lifetime CO2 offset. Per-panel charts showing the production curve for any panel on any day. Consumption data if your installer added the Enphase IQ Combiner with current transformers. Battery state of charge if you have IQ Batteries.

The strength of Enlighten is granularity. If panel 17 starts underperforming in August, you see it in the grid view within a day or two. The weakness is that the consumption side requires the CT install at panel time, and many older Enphase systems were installed production-only, so you cannot see whole-home usage without an upgrade.

Enphase data goes back to system commissioning and is retained indefinitely on Enphase servers. That history is genuinely useful at year five when you are trying to compare degradation against the panel datasheet.

The Enphase mobile app on iOS and Android has improved substantially over the last three years. The 2024 redesign added a clearer dashboard, faster load times, and a battery-focused view for IQ Battery owners. Older homeowners who still remember the original Enlighten interface from 2015 will find the current app significantly easier to navigate.

One feature worth highlighting is the Production Report. Enphase emails a monthly PDF summarizing the previous month's production, comparing it to your design estimate, and flagging any panels with anomalous output. For homeowners who do not want to log into the app weekly, the monthly report is a passive way to keep an eye on the system. You can enable it from the account preferences page in the web portal.

Enphase systems also support a feature called Sunlight Backup on systems with IQ Batteries and the IQ System Controller. During grid outages, the system can continue to charge the battery from solar during the day, which is a meaningful upgrade over older Powerwall-only backup setups that could not refill during multi-day outages. The monitoring app shows backup state explicitly, including grid status, battery reserve percentage, and projected runtime at current load.

SolarEdge MySolarEdge: String-Level Plus Optimizers

SolarEdge uses a different architecture. One string inverter sits on the wall, usually in the garage, and each panel has a small power optimizer attached to its frame. The optimizers do MPPT (maximum power point tracking) at the panel level and report data back through the inverter to SolarEdge servers.

The MySolarEdge app gives you panel-level production charts similar to Enphase, but the resolution and refresh rate differ. SolarEdge typically reports in 15-minute intervals rather than 5-minute, and the panel view is a visual layout that your installer has to actually draw during commissioning. If they skipped that step, you get a list of optimizer IDs instead of a roof picture, which is harder to read but still complete.

SolarEdge has a weather overlay feature that Enphase does not have at the same depth. You can pull up a production day and see cloud cover, temperature, and irradiance estimates on the same chart, which makes it easier to tell whether a low production day was the system or the sky.

The consumption side requires a SolarEdge Energy Meter, which is a separate CT clamp install. With it, you get full home consumption, self-consumption percentage, and grid import and export numbers, all integrated into the same charts.

One quirk: if the central inverter fails, you lose all monitoring data until the inverter is replaced, because the optimizers communicate through it. With Enphase, a single microinverter failure costs you one panel of data, not the whole system.

MySolarEdge added a feature in 2023 called Smart Energy Insights, which uses AI to flag anomalies in your production data automatically. In practice it works well for catching gradual drift, less well for sudden faults that the existing alert system already catches. The insights show up as cards in the app dashboard, and you can dismiss them if they are noise.

For homeowners with SolarEdge batteries (the SolarEdge Home Battery, formerly StorEdge), the app also surfaces battery state of charge, charge and discharge rates, and grid arbitrage scheduling. The battery management is solid, though it does not have the polish of the Tesla app's battery views.

The web portal at monitoring.solaredge.com is a more powerful interface than the mobile app for any deep analysis. The chart customization, date range selection, and CSV export are all easier on a laptop than on a phone. We tell most SolarEdge homeowners to bookmark the web portal even if they primarily use the app, because the data export workflow is significantly faster there.

Tesla App: Solar Plus Powerwall in One Place

If you have Tesla solar or a Powerwall paired with another brand of solar, the Tesla app is the only place where production, consumption, and battery state of charge live on the same screen. That integration is the main reason people stay with it even though the panel-level data is weaker than Enphase or SolarEdge.

The home energy flow diagram is the signature view: solar generation, house consumption, battery charge or discharge, and grid import or export, all animated in real time. For homeowners on TOU rates with a battery, this view is genuinely useful because you can see at a glance whether your house is pulling from the battery or the grid during peak hours.

The Tesla app does not show per-panel production. If you have Tesla solar panels, you see string-level data at best, and often just inverter-level totals. This is fine for system-wide health checks but useless for diagnosing a single bad module.

What the Tesla app does better than anyone is battery economics. Time-Based Control mode lets you set Cost Saving or Self-Powered modes, and the app shows you projected daily savings based on your utility rate plan. Under NEM 3.0 with TOU-D-PRIME or EV2-A on SCE, this is a substantial feature, not a gimmick.

Powerwall firmware updates push automatically through the app, and historical data goes back to install date. The export function is limited compared to Enphase, but covers basic CSV download for daily totals.

Tesla added Storm Watch a few years ago, which automatically charges the Powerwall to 100% when severe weather is forecast in your area. For Temecula, this activates rarely (high wind events, the occasional atmospheric river), but when it does activate, the app sends a clear notification and you can override it if needed. The integration with the National Weather Service feed is genuinely useful and is one of the features that competitors have not matched.

The Tesla app also handles vehicle integration for homeowners who drive a Tesla. You can see vehicle charging state, schedule charging during off-peak hours, and (with the right firmware) coordinate vehicle charging with solar production so the car charges from excess solar rather than from grid. This integration is unique to Tesla and is a real advantage for households running both Tesla vehicles and Powerwall.

One downside: the Tesla app requires a stable internet connection to do almost anything beyond viewing current state. There is no local app, no LAN-only mode, and no offline functionality. If Tesla's servers go down (which has happened several times over the past two years), the app shows nothing. The Powerwall keeps running, the solar keeps producing, but you cannot see any of it until Tesla servers come back. Enphase and SolarEdge both have local fallback modes that work without internet, which is a meaningful reliability advantage.

SMA Sunny Portal: The Legacy String Inverter Platform

SMA was the dominant residential solar inverter brand in the early 2010s, and Sunny Portal is the web-based monitoring platform that came with most SMA Sunny Boy installations from roughly 2010 to 2018. If your system was installed before 2018 and uses a single big inverter, there is a real chance you are still on Sunny Portal.

The interface is dated. It runs in a browser, the mobile app is functional but not modern, and the data refresh is 15 minutes at best. You see string-level production, which on most homes means two strings combined into one total. There is no panel-level data because there are no optimizers or microinverters.

What Sunny Portal does well is reliability. It has been running for over a decade with minimal interface changes, which means your historical data is intact going back to commissioning. For a homeowner thinking about repowering an older system, that 8 to 12 year production history is the most valuable thing in the account.

SMA still sells Sunny Boy inverters in the US market, but the residential push has slowed. If you are buying new in 2026, you are more likely to land on Enphase, SolarEdge, or Tesla. If you already have SMA, it works, just expect to do more interpretation of the data yourself.

One genuinely useful feature on SMA inverters is the local Webconnect interface. If you are on the same WiFi network as the inverter, you can hit its IP address in a browser and see real-time data without going through the cloud. Latency is near-zero, the data is unfiltered, and there is no dependence on SMA servers being up. For technically inclined homeowners, this is the path to integrating SMA into Home Assistant or a custom dashboard.

The Sunny Portal mobile app on iOS and Android is the weakest of the four covered here. It works, but it lags, the charts are harder to read, and the alert system is basic. Most SMA homeowners we know use the web portal on a laptop rather than the mobile app for any serious data review. If you have an older SMA system and you have not logged into Sunny Portal in over a year, that is your sign to log in this week and verify the system is still reporting and producing at expected levels.

Third-Party Monitoring: Solar Analytics, Sense, and Emporia

The brand apps cover production. They are weaker on whole-home consumption analysis. Three third-party tools fill that gap and are worth installing alongside your solar monitoring.

Sense uses high-frequency current sensors on your main service conductors to identify individual appliance signatures. Over a few weeks it learns to distinguish your dryer, AC compressor, refrigerator, and pool pump as separate line items. Combined with your solar monitoring, you see which loads are actually driving your peak-hour grid pulls, which is the conversation that matters under NEM 3.0.

Emporia Vue takes a different approach. Instead of signature recognition, it uses up to 16 individual CT clamps on specific breakers, giving you direct measurement of each circuit. For homeowners with EV chargers, heat pumps, and pool equipment, the per-circuit data is more reliable than Sense.

Solar Analytics is an Australian platform that has grown in the California market. It works on top of any inverter and gives you production forecasting, anomaly detection, and what they call a system health score that benchmarks your output against similar systems in your area.

For most homeowners, one consumption tool plus your brand app is enough. Stacking all three creates more data than anyone has time to read.

Sense costs around $350 with a typical install fee of $150 to $250 depending on your panel layout. It needs to be installed by an electrician because it requires opening the main service panel. The install takes about 90 minutes. Data accuracy on signature detection improves over the first 6 to 8 weeks as the algorithm learns your specific appliance fingerprints.

Emporia Vue 3 hardware costs around $200 for the gateway plus CT clamps, and you can install it yourself if you are comfortable working in your panel with the main breaker off. The per-circuit accuracy is excellent from day one because it is direct measurement, not inference. The web dashboard is less polished than Sense, but the data quality is better.

One more tool worth mentioning: utility-side data from SCE's My Account portal. SCE provides 15-minute interval data going back 13 months for most residential accounts, downloadable as CSV. Cross-referencing your inverter-side production data against SCE's meter-side import and export numbers is the cleanest way to spot meter or netting errors, which we have caught on roughly one in 25 audits we run.

What Real-Time Data Tells You That a Monthly Bill Does Not

Your SCE bill is a single monthly number summarizing roughly 720 hours of generation and consumption. It tells you whether you net-exported or net-imported, but nothing about when. Under NEM 1.0, that was fine. Under NEM 3.0, it hides almost everything that matters.

Monitoring shows you hourly data. You can pull up June 15th and see that your system produced 52 kWh that day, peaked at 7.8 kW at 12:40pm, and that your house consumed 18 kWh of it directly, exported 34 kWh between 10am and 3pm at the low NEM 3.0 rate, and then pulled 22 kWh back from the grid between 4pm and 9pm at the peak TOU rate.

That single day of detail is what tells you whether a battery would actually pay back, how to shift dishwasher and EV charging timing, and whether your AC pre-cooling strategy is doing what you think it is doing.

None of this is visible on a bill. All of it is visible in your app within 60 seconds.

The other thing real-time data tells you is what your system actually does on cloudy days, on smoke-haze days, and during the December low-sun months. Most California homeowners assume their system underperforms in winter because the days are shorter, which is true, but the actual production curves are more nuanced. A clear December day in Temecula can produce 70% of a July day because the air is cooler and panels are more efficient. A smoky August day during fire season can produce 40% of a normal August day even though the sky looks merely hazy.

Once you have a year of hourly data, you stop being surprised by your true-up and start being able to predict it within a few hundred dollars before it arrives.

Setting Up Alerts That Actually Catch Problems

Every platform supports email or push alerts, but the defaults are usually too conservative to be useful. Out of the box, Enphase typically alerts only on hardware failure or extended communication loss, which means a 25% production drop on one panel can run for weeks before you hear about it.

The alert configuration worth setting up on day one includes panel offline for more than 24 hours, daily production below 70% of expected on clear days, and monthly production below 85% of design estimate. On Enphase you set these under System Settings, Alerts. On SolarEdge it is under Account Settings, Notifications.

For Tesla, the alert system is thinner. You get notifications for major faults and grid outages, but per-panel underperformance is not a thing in the app, because the data resolution is not there.

A useful trick on Enphase: set up email alerts for daily energy production below a fixed threshold (say, 25 kWh per day on a 9 kW system in summer). On any day that comes in below that line, you get an email. Most days the email never arrives. The days it does arrive are the days worth investigating, and the email lands in your inbox by 10pm, not three months later when you finally check the app.

SolarEdge supports a similar daily threshold alert under Notifications, Daily Energy. The implementation is slightly clunkier (you set it as a percentage of expected rather than a hard kWh number), but the effect is the same. Both platforms support weekly summary emails if you want a passive once-a-week glance instead of daily emails.

Data Accuracy: Revenue-Grade Meter vs Estimated Production

Not all production numbers are equal. Enphase microinverter readings are estimates, calibrated at the factory and accurate to roughly 2.5%. SolarEdge optimizer data has similar tolerance. These numbers are fine for trending and warranty claims but not legally billable.

If you participate in any utility program that pays you based on production (older SGIP battery incentives, certain demand response programs, some commercial PPAs), you need a revenue-grade meter, typically a separate dedicated meter with a 0.5% accuracy class, installed between your inverter and your panel. The data from that meter overrides the app numbers for billing purposes.

For 95% of residential homeowners in Temecula, the app data is accurate enough. Just understand that if your installer ever has to file a production guarantee claim against the panel manufacturer, the manufacturer may insist on a revenue-grade meter reading before honoring it.

Worth noting: the SCE production meter installed at commissioning (the small meter usually mounted next to your main service panel) is revenue-grade by default. SCE keeps that reading and you can request a copy of the historical interval data through customer service. For any serious warranty or production guarantee dispute, that SCE meter reading is the tiebreaker, not your inverter app. We pull SCE meter data as part of every system audit we run, alongside the inverter app data, specifically to have both sides of the record.

Monitoring Under NEM 3.0: More Important Than Ever

NEM 3.0 pays roughly 75% less for exported solar than NEM 2.0 did, with peak evening export windows worth dramatically more than daytime export. The economics of the system now depend on hourly behavior, not annual totals.

Your monitoring app is the only tool that shows you, in real numbers, how much of your production is going to high-value evening export (via battery) versus low-value midday export (going straight to grid). If you have a battery, you should be looking at the daily export-by-hour chart at least once a week to verify that your discharge windows are landing in the 4pm to 9pm peak period.

We have walked homeowners through their first NEM 3.0 true-up where the bill was triple what they expected. In every single case, the monitoring data showed the battery was charging from the grid overnight instead of from solar during the day, because a setting was wrong from day one. The app caught it. Nothing else would have.

Specifically for Temecula homeowners on SCE, the relevant TOU rate is typically TOU-D-PRIME, with peak hours 4pm to 9pm year-round. Export credits during those five hours are roughly 2 to 3 times the value of midday export credits. A 13.5 kWh Powerwall, fully discharged into the grid during the peak window, generates substantially more credit than the same 13.5 kWh exported at noon. Monitoring lets you verify, week by week, that this is actually happening.

The second NEM 3.0 watch-item is your export totals. Under the old rules, exporting more than you used was effectively the same as using less. Under NEM 3.0, exporting is much less valuable than self-consuming. If your monitoring data shows large midday exports, the right move is usually load shifting (running pool pumps, EV charging, dishwashers, laundry) during solar hours rather than at night. The app gives you the data to make those scheduling decisions deliberately rather than by habit.

How Monitoring Helps With TOU Rate Optimization

SCE has three TOU rate plans most solar homeowners land on: TOU-D-4-9PM, TOU-D-5-8PM, and the EV2-A plan if you charge an electric vehicle at home. Each has different peak windows, different prices, and different break-even points for shifting load.

The monitoring data lets you do the actual math. Pull a typical weekday in July, look at your consumption curve hour by hour, and overlay your rate plan. You will see in 10 minutes whether moving the dishwasher to 10pm saves $0.18 or $1.40 a day, and whether running the AC harder at 2pm to pre-cool the house is worth the kWh.

Without the data, this is guesswork. With the data, it is arithmetic.

For Temecula homeowners with pool equipment, the monitoring data almost always reveals one easy win: the pool pump is running during peak hours and pulling 1.5 to 2.5 kW from the grid at $0.55 per kWh, when shifting that same load to 10am to 2pm would cover it from solar at essentially zero marginal cost. A single timer change worth $400 to $700 a year is one of the most common findings we see when reviewing a customer's app data with them.

The same logic applies to EV charging. Default behavior for most EV owners is to plug in when they get home around 6pm and let the car charge through the evening. Under TOU rates that is exactly the wrong window. Setting the car to charge from 10pm to 6am (or from noon to 4pm if the driver works from home) moves the entire charging load to a lower-cost window. Your monitoring data shows whether the schedule is actually being honored.

When Monitoring Shows Underproduction: Warranty Claim Process

If your monitoring data shows production 10% or more below the design estimate over a full year, you have a real conversation to start. The process differs by brand.

Enphase warranty claims are filed through your installer first, who pulls the data from Enlighten and submits it to Enphase. Enphase has a 25-year microinverter warranty, and replacement units are typically shipped within 7 to 14 days. Labor is sometimes covered by the installer, sometimes not, depending on your original contract.

SolarEdge works similarly. The installer pulls data, files the claim, SolarEdge ships replacement optimizers or an inverter. The central inverter has a 12-year standard warranty extendable to 25 years, and optimizers are 25 years.

Tesla warranty claims happen through Tesla directly. The data they pull is from your account, you are not involved beyond confirming the issue. Powerwall has a 10-year warranty on the unit and a separate energy retention guarantee.

Panel warranty claims (separate from inverter or optimizer claims) require the manufacturer name, panel serial numbers, install date, and at least 12 months of production data. The data export from your monitoring app is the foundation of every panel warranty claim we have ever filed.

The typical underproduction threshold for a successful warranty claim is around 12 to 15% below the manufacturer's published linear degradation curve for that panel model. A tier-1 panel from Q Cells, REC, or LG (legacy stock) should degrade no more than 0.45% per year, meaning a 10-year-old panel should still produce 95.5% of nameplate. If your data shows it producing 80%, you have a claim.

One thing to set expectations on: warranty claims take time. From the moment your installer files until replacement parts arrive on your roof is typically 6 to 14 weeks, sometimes longer if the manufacturer needs to inspect a returned panel. Your monitoring continues to record the underproduction during the claim process, which is useful documentation but not a faster path to resolution.

Data Ownership: Who Actually Owns Your Production Numbers

The terms of service on every major monitoring platform give the platform broad rights to use your aggregated data for analytics, marketing, and product improvement. They typically commit not to share your personally identifying data without consent, but the production data itself is co-owned in practice.

For most homeowners this does not matter. For homeowners thinking about long-term system ownership, two scenarios are worth thinking about: what happens to your data history if the platform discontinues your hardware tier, and what happens if you sell the home.

Best practice: export your full production history as CSV at least once a year and store it somewhere you control. Every platform supports CSV export, even if it is buried three menus deep.

API Access for Power Users

Enphase offers a developer API with a tiered pricing model. The free tier covers basic system summary calls; the paid tiers add real-time data and higher rate limits. SolarEdge has a similar setup with a documented API and a personal access key that any homeowner can generate from the account settings.

Tesla has no official homeowner API, but a community-maintained unofficial API has been stable for years and is the basis of most Powerwall integrations into smart home platforms. SMA has a local Modbus interface on most inverters, which is the right path for anyone wanting fully local data without cloud dependency.

For homeowners who want to pull their solar data into a spreadsheet, a Grafana dashboard, or a custom script, the API is available on three of the four platforms. The friction is real but not prohibitive.

The Enphase API specifically deserves a closer look. The free Watt tier covers up to 10,000 calls per month with system summary data, which is enough for daily polling on a single system. The Watt Hour tier at around $80 per month adds 5-minute interval data and 5 system production endpoints, useful if you are managing multiple systems or want sub-hourly resolution. Most homeowners stay on the free tier and pull a daily summary into a spreadsheet, which is plenty for trend analysis.

SolarEdge's API is free for personal use with a documented rate limit (300 requests per day per system, 3 requests per 15 minutes for live data). The data structure is well-documented and stable. We have seen homeowners build full-featured dashboards on top of the SolarEdge API using nothing more than Google Sheets and a few scheduled scripts, which is a useful capability for anyone who wants to keep their own records independent of the manufacturer's portal.

Integration with Smart Home Platforms

Home Assistant has mature integrations for Enphase Envoy (local polling), SolarEdge (cloud API), and Tesla Powerwall (community API). The integrations bring all solar data into your Home Assistant dashboards alongside thermostat, lighting, and security data, and let you build automations like "if battery is below 30% and TOU peak starts in 30 minutes, turn off the pool pump."

Samsung SmartThings has limited solar integration, mostly through community plugins. Apple HomeKit has none directly, but you can route data through Home Assistant or Homebridge.

For most homeowners this is overkill. For the 5% who already run Home Assistant, integrating your solar data is one of the highest-value automations you can build.

Frequently Asked Questions

Common Monitoring Mistakes Homeowners Make

The single most common mistake is never logging in after the installer finishes the commissioning walkthrough. The installer sets up the account, shows you the app once, and then you do not open it again for two years. By the time you finally log in because of a billing question, you have lost visibility into a 24-month window where any number of issues could have started and gone unnoticed.

The second most common mistake is letting the installer's email address remain as the primary account contact instead of your own. When the installer eventually closes their business or transitions the account, alert emails stop reaching anyone who would act on them. Always verify that your personal email is the primary contact, and add a secondary contact (a spouse or family member) as a backup.

The third mistake is judging the system on a single week or single month rather than year-over-year. Solar production is seasonal, and a low-production week in February or June (high pollen, smoke haze, marine layer days) is not a problem if the annual totals are tracking design estimates. The right cadence is to compare full months year-over-year and look for sustained drift, not single-day or single-week dips.

The fourth mistake is ignoring consumption-side data once it is installed. Most homeowners check production weekly and consumption never. The consumption side is where the actual money is, especially under NEM 3.0. Spending five minutes a month reviewing which hours your house draws from the grid is consistently higher leverage than reviewing production data, which mostly takes care of itself.

The fifth mistake is not exporting historical data when changing installers, selling the home, or switching brands. The data lives in the manufacturer's account, but the account access can become tangled when an installer transitions out. Always pull a full CSV export of your production history at least once a year, save it to your own cloud storage, and keep it with your home records.

Which Platform Is Best for a New California Install in 2026?

For most homeowners installing this year, Enphase is the strongest combination of panel-level data, app quality, hardware reliability, and warranty depth. The 25-year microinverter warranty is the longest in the industry, and the single-panel granularity matters more under NEM 3.0 than it did before.

SolarEdge is a close second if your installer prefers string inverter architecture or if your roof has consistent unshaded geometry. The cost per watt is sometimes lower.

Tesla solar plus Powerwall makes sense for homeowners who want one app and one warranty contact for both production and storage, and who are comfortable trading panel-level diagnostics for a cleaner unified experience.

SMA is a reasonable choice for homeowners specifically wanting local monitoring without cloud dependency, but the residential platform has stagnated and we do not recommend new SMA residential installs without a specific reason.

The decision should not actually be driven by the monitoring app alone. Hardware reliability, warranty terms, installer competence, and price all matter more in absolute terms. But the monitoring app is what you will interact with every week for the next 25 years, so it is worth weighting in the decision rather than ignoring entirely. If two competing proposals have similar pricing and similar hardware, the system with the better monitoring experience is usually the better long-term choice.

Our practical recommendation for most Temecula and southwest Riverside homeowners installing in 2026: Enphase microinverters on the production side, paired with either Enphase IQ Battery or Tesla Powerwall on the storage side. The Enphase monitoring catches problems at the panel level, the battery integration handles NEM 3.0 economics, and the combined system is the most fault-tolerant residential configuration on the market today.