East-West Facing Roof and Solar: What Temecula and Murrieta Homeowners Need to Know (2026)
Most tract homes in SW Riverside County were built on east-west streets, which means the roof ridgeline runs east-west and the roof faces either north-south or east-west. If your usable roof slopes face east and west rather than south, your solar installer has to make deliberate choices about panel placement, inverter type, and system sizing. Under NEM 3.0, those choices directly affect how much you save each month and how long it takes to pay off your system.
Helping Riverside County homeowners navigate SCE rates and solar options since 2020
Why East-West Facing Roofs Are So Common in Temecula and Murrieta
The layout of a neighborhood is the root cause. Tract developers in SW Riverside County built most subdivisions with streets running roughly east to west, which is the natural direction for streets that follow the valley contours in the Temecula and Murrieta basins. When a street runs east-west, the houses are built parallel to it, the garage faces the street, and the roof ridgeline runs east-west.
That ridgeline geometry means the two main roof planes slope to the north and south, not to the east and west. North-facing panels produce very little in Southern California and are rarely installed. So the viable panels are on the south-facing slope, which is ideal.
But many neighborhoods in Harveston, Redhawk, Paloma del Sol, Murrieta Hot Springs Road corridors, and newer developments in Menifee and Lake Elsinore were platted on streets running north-south. When streets run north-south, houses face north or south, the ridgeline runs north-south, and the two usable roof planes face east and west.
Two-story homes add another layer of complexity. The upper floor often blocks part of the lower roof sections, and in some floor plans the west-facing roof plane is partially shaded by the upper gable from mid-afternoon onward. This is especially relevant on streets that run diagonally rather than true north-south or east-west.
The bottom line is that a significant share of homes in SW Riverside County have east-west facing roofs, and solar installers in this market are very familiar with how to design for them. The question is not whether solar works on an east-west roof. It clearly does. The question is how to design it well.
The Production Difference: South vs. East vs. West vs. Split
True south-facing panels at a pitch of 20 to 25 degrees produce the highest annual energy output for any location in California. In the Temecula area with average annual irradiance, a 6 kW south-facing system typically produces 9,200 to 9,800 kWh per year based on PVWatts modeling for this climate zone.
Maximum annual output. Bell-curve production centered around solar noon. Best for NEM 2.0-era math. Generates a large midday export surplus under NEM 3.0.
Flatter, broader production curve. Morning east production covers AM loads. Afternoon west production aligns with TOU peaks. Better self-consumption profile under NEM 3.0.
Afternoon and early evening production. Aligns well with TOU-D-5-8PM peak pricing. Less total annual energy than south but strong alignment with expensive grid hours.
Morning production only. Good for morning EV charging and pre-cooling. Less aligned with TOU peak hours in the afternoon. Battery storage helps shift this energy to evening.
The 15 to 20 percent production gap between south and east-west is real and measurable. But that gap is not the whole story. Under NEM 3.0, what matters is not just how much energy you produce but when you produce it and whether that production displaces your most expensive grid draws.
A south-facing 6 kW system might generate a large midday surplus that gets exported at 5 to 8 cents per kWh while you are at work. An east-west system of the same size might produce less total energy but do a better job of covering your morning and evening loads, reducing your import of 40 to 55 cent peak-rate electricity. In that scenario, the east-west system can deliver equivalent or better monthly bill savings despite lower annual production totals.
NEM 3.0 and TOU Rates: Why East-West Splits Have a Hidden Advantage
Under NEM 2.0, the calculation was simple: produce as much energy as possible and bank export credits at near-retail rates. South-facing roofs won that game by a wide margin because they produce the most total kilowatt-hours per year.
NEM 3.0 changed the game fundamentally. Export credits dropped to roughly 4 to 8 cents per kilowatt-hour for most off-peak midday hours, while grid import rates during evening TOU peaks run 40 to 55 cents per kilowatt-hour on SCE rate plans like TOU-D-PRIME and TOU-D-5-8PM. The asymmetry is enormous.
TOU-D-PRIME charges the highest rates from 4 PM to 9 PM on weekdays. West panels in Temecula continue producing from roughly 10 AM until 6 to 7 PM, depending on season and pitch. That means west panels are generating during the entire TOU-D-PRIME peak window and offsetting grid draws worth 40 to 55 cents each.
TOU-D-5-8PM concentrates the peak into the 5 to 8 PM window. West panels catch the first part of that window directly in summer months. Even with a battery, you want west panels charging storage during those afternoon hours rather than exporting cheaply.
East panel morning production offsets super-off-peak grid rates but still covers loads like morning EV charging, washer and dryer cycles, and HVAC pre-cooling that you would otherwise pull from the grid. Under both TOU plans, morning import rates are lower but still meaningful.
The self-consumption advantage of an east-west split is most pronounced for homeowners who are present in the mornings and evenings. If you work from home, have an EV you charge each morning, or run pool equipment in the afternoon, your consumption curve naturally aligns with the east-west production profile in a way it does not for a household that is empty from 8 AM to 6 PM.
For a deeper look at how NEM 3.0 export rates work month by month, see our guide on solar monitoring and tracking your production vs. consumption.
Panel Quantity Math: How Many Extra Panels to Match South-Facing Output
If your goal is to match the annual kilowatt-hour production of an equivalent south-facing system, the math is straightforward. An east-west split produces roughly 80 to 85 percent of what the same number of south-facing panels would generate. To close that gap, you need to increase the number of panels by 15 to 20 percent.
The exact number of extra panels depends on the specific azimuth of your east and west roof faces, the roof pitch, local shading, and the irradiance data for your exact address. A roof that faces southeast and northwest rather than true east and west will have different production ratios than one aligned to true cardinal directions.
Always ask your installer to show you the production modeling report from Aurora Solar, HelioScope, or a comparable tool. These models account for your roof's exact azimuth and pitch, not just a general orientation category. The difference between a true east face and a southeast face can be 8 to 10 percent in annual production, which changes the panel count math meaningfully.
String Inverter Limitations on East-West Roofs
A standard single-MPPT string inverter is one of the worst tools for an east-west split roof. Understanding why requires a brief look at how string inverters work.
A string inverter takes DC power from a series-connected string of panels and converts it to AC at a single maximum power point tracking (MPPT) input. The inverter constantly adjusts voltage and current to find the optimal operating point for the whole string. When all panels in the string face the same direction and receive similar irradiance, the MPPT works well.
When you mix east-facing and west-facing panels in the same string, the east panels are near peak production in the morning while the west panels are still in shade or low irradiance. The MPPT cannot simultaneously optimize for both conditions. The result is a compromise operating point that underserves both sides of the roof.
On a single-MPPT string inverter with mixed east-west panels, the production graph shows a broad, low-amplitude curve without a distinct peak. The system never fully exploits either the morning east sun or the afternoon west sun. Total daily production can run 10 to 20 percent below what the same panels would produce with panel-level or string-level MPPT separation.
The correct solution for a string inverter on an east-west roof is a dual-MPPT inverter. These units have two independent MPPT inputs, allowing you to wire east panels to one input and west panels to the other. Each side optimizes independently throughout the day. Many modern string inverters in the 5 to 12 kW range include two MPPT inputs as a standard feature, but you must verify this with your installer and confirm the string configuration is set up correctly.
Microinverters vs. String Inverters with Power Optimizers for East-West Roofs
For east-west splits, both microinverters and string inverters with power optimizers outperform a basic string inverter without MPPT separation. The choice between the two comes down to cost, monitoring preferences, and your specific roof configuration.
- Each panel converts DC to AC independently. East and west panels optimize simultaneously without any shared MPPT constraint.
- Panel-level monitoring shows you exactly which panels are producing what, on which face of the roof, in real time.
- Ideal for unequal east-west splits (e.g., 6 panels east and 10 panels west) because there are no string balancing requirements.
- Higher upfront cost than string inverter options, typically adding $500 to $1,200 to total system cost at residential scale.
- 25-year warranty standard.
- Power optimizers on each panel condition the DC output before it reaches the central string inverter. Each optimizer tracks its own panel's maximum power point.
- The dual-MPPT SolarEdge inverter handles east and west strings on separate inputs for additional optimization at the string level.
- Module-level monitoring available through the SolarEdge portal. Slightly less granular than Enphase for troubleshooting but functionally similar.
- Typically $200 to $600 less expensive than a comparable Enphase system at residential scale.
- Optimizer warranty is 25 years. Inverter is 12 to 25 years.
For most Temecula and Murrieta east-west roofs, either solution works well. The deciding factors are often the balance of the two roof faces and whether there is additional shading complexity.
If your east and west faces are equal in panel count and unshaded except by their orientation, a dual-MPPT SolarEdge system is a cost-effective choice. If one side is smaller or if there is intermittent shading from a chimney, vent pipe, or a two-story roofline, Enphase microinverters handle that complexity more gracefully because shading one panel does not affect the others.
Roof Angle and Pitch: How Low-Tilt East-West Roofs Compare
Pitch matters more on east-west roofs than on south-facing roofs. Here is why.
A south-facing roof performs best at a tilt angle equal to the site's latitude, roughly 33 to 34 degrees in Temecula. Most residential roofs are built at a shallower pitch of 3:12 to 5:12, which is 14 to 23 degrees. That shallow pitch reduces production by about 5 to 8 percent compared to an optimally tilted south array, but the south orientation still provides strong performance.
On an east-west roof, a shallow pitch compounds the orientation penalty. A 3:12 pitch east or west facing roof presents a surface that is almost horizontal. At that angle, the difference between east and west becomes smaller because a nearly flat panel captures sun from almost all directions throughout the day. Counterintuitively, very low-pitch east-west roofs sometimes perform closer to south than steeper east-west roofs do, because the panel is essentially tilted toward the sky rather than locked into one orientation.
| Pitch | Tilt angle | Approx. % of south output |
|---|---|---|
| 2:12 | 9 degrees | 88-92% |
| 3:12 | 14 degrees | 86-90% |
| 4:12 | 18 degrees | 83-87% |
| 5:12 | 23 degrees | 80-84% |
| 6:12 | 27 degrees | 78-82% |
Estimates based on PVWatts modeling for Temecula, CA (Climate Zone 10). Actual results depend on azimuth, shading, and panel specifications.
For steep-pitch east-west roofs of 6:12 or greater, the orientation penalty is most pronounced. If your roof is steep and faces east-west, that is precisely when a well-designed system with per-panel optimization matters most, because every panel needs to extract maximum power from its limited daily sun window.
West-Only Roofs: Still a Strong Performer Under NEM 3.0
If your south and east roof planes are unsuitable for solar because of shading, a dormer, a chimney, or HOA restrictions on front-facing panels, a west-only array is often the next best option and sometimes the best option under NEM 3.0 economics.
West panels in Temecula typically start producing meaningfully after 9 to 10 AM and continue into the late afternoon, reaching their peak between 1 and 3 PM and tapering off by 6 to 7 PM in summer. In winter, the production window is shorter but still captures the most valuable afternoon and early evening hours.
Under TOU-D-PRIME, which charges peak rates from 4 to 9 PM, west panels in summer produce during the first one to three hours of that peak window directly, offsetting grid draws at 40 to 55 cents per kWh without any battery required. A 5 kW west-only array in Temecula can offset 100 to 200 kWh of peak-rate electricity per month in summer just from direct production, before accounting for any storage.
Adding a battery to a west-only system extends the value further. West panels charge the battery during peak afternoon production, and the battery discharges from 4 PM through 9 PM, covering the entire TOU peak window without drawing from the grid.
East-Only Roofs: Viable but Requires a Different Strategy
An east-only roof produces morning energy, roughly from sunrise until about 12:30 to 1:30 PM depending on season and pitch. That production window is useful but is the least aligned with expensive TOU grid hours, which are concentrated in the late afternoon and evening.
Where east-only production shines is for homeowners with morning heavy loads. If you charge an EV overnight and top it off in the morning, east panels can cover a significant portion of that charge before the car leaves the driveway. If you run your pool pump during the morning hours rather than the afternoon, east production directly offsets that load.
For east-only homes without a battery, the NEM 3.0 math is challenging. Morning production often exceeds morning consumption, leading to midday export at low NEM 3.0 rates. The home then draws from the grid during the expensive 4 to 9 PM window with no solar production remaining.
Battery storage substantially changes the east-only equation. An east-only array can be sized to fill a battery by early afternoon. That battery then discharges during the TOU peak window, effectively converting cheap morning solar into expensive evening offset. For east-only homeowners, the question is often not whether to add storage but how much storage to pair with the array to maximize self-consumption.
Ground-Mount as an Alternative for Poor Roof Orientation
For homes where the roof orientation is severely compromised, heavy shading from trees or neighboring structures limits viable panels to fewer than the system size demands, or HOA rules restrict front-facing roof panels on the south slope, a ground-mounted array is worth evaluating.
Ground mounts can be oriented to true south at whatever tilt angle maximizes annual production, typically 20 to 30 degrees for Temecula. They are not constrained by ridge direction, roof pitch, or shading from the structure itself. A ground-mounted system on the south side of a large backyard can outperform a roof-mounted east-west array by 20 to 25 percent in annual production from the same panel count.
- True south orientation at optimal tilt
- Easier panel cleaning and maintenance access
- No roof penetrations or waterproofing concerns
- Can expand the array more easily in the future
- Avoids HOA restrictions on front-facing roof panels
- 10 to 20 percent higher installed cost due to racking and trenching
- Requires adequate yard space and appropriate setbacks from property lines
- Trenching to the main panel adds cost and complexity
- Permit process may be slightly more complex
- HOA approval may still be needed depending on yard visibility
Ground mounts are less common in densely packed tract neighborhoods in Temecula and Murrieta where lot sizes are limited. They are more viable on larger lots in areas like French Valley, De Luz, or semi-rural parcels on the outskirts of Menifee. If your roof situation is genuinely poor and you have yard space, ask your installer to provide a ground-mount alternative quote alongside the roof-mount proposal.
How Installers Should Model East-West Production: Aurora vs. PVWatts vs. HelioScope
Not all production models treat east-west roofs equally. Knowing which tools your installer uses and what assumptions go into the model helps you evaluate whether the production estimate in your quote is trustworthy.
Aurora uses high-resolution satellite imagery and LiDAR data to map the exact roof geometry, including pitch and azimuth for each individual roof plane. It models shading from nearby trees, chimneys, and neighboring structures on an hour-by-hour basis. For east-west roofs, Aurora handles the MPPT configuration and can model the difference between a single-MPPT string and a dual-MPPT or microinverter configuration. Ask your installer to show you the Aurora simulation results and confirm it is using dual-MPPT or per-panel modeling rather than a string-averaged approach.
PVWatts is the US Department of Energy's free online calculator for estimating solar production. It uses TMY (typical meteorological year) data for any location in the US. PVWatts lets you specify azimuth and tilt and produces an accurate annual estimate for a simple uniform array. Its limitation for east-west roofs is that it can only model one surface at a time. To model a split, you run two separate calculations (one for east, one for west) and add them. PVWatts is useful for sanity-checking an installer's numbers but is not sophisticated enough for shading analysis.
HelioScope is a professional design tool used by many commercial and residential installers. It models multi-plane roof arrays with different orientations, simulates string configurations and MPPT interactions, and accounts for wiring losses. For east-west roofs with complex layouts or unequal plane sizes, HelioScope provides more granular wiring loss modeling than PVWatts. It is particularly useful for evaluating whether a specific string configuration introduces more loss than a microinverter alternative.
For your east-west roof assessment, the minimum you should expect from a reputable installer is a production model that specifies the azimuth of each roof plane separately, accounts for the inverter configuration (dual-MPPT vs. single-MPPT vs. microinverter), and shows you the estimated year-one production in kilowatt-hours before you sign anything.
Temecula Home Layouts: Two-Story Shading, HOA Rules, and Front-Facing Panel Restrictions
Two issues come up repeatedly for east-west roof homeowners in Temecula and Murrieta that are worth knowing before you get quotes.
The first is two-story shading. Many tract floor plans in areas like Wolf Creek, Redhawk, and Morgan Hill feature a two-story main structure with a single-story garage or bonus room attached. The upper floor often casts a shadow on the lower roof sections, particularly on the west face in the mid-afternoon. When an installer runs an Aurora model on your home, this shading should appear in the simulation. If the lower west-facing roof section is shaded from 2 PM onward by the upper gable, putting panels there may not be economically justified without microinverters or optimizers to prevent that shading from dragging down the rest of the array.
The second issue is HOA restrictions on panel visibility. Many HOAs in planned communities in Temecula and Murrieta have architectural review requirements for solar. California law (Civil Code Section 714) prohibits HOAs from unreasonably restricting solar, but HOAs can require that panels not be visible from the street. For a home on a north-south street with the front of the house facing south, the south-facing roof may face the street, which means the HOA can require panels be placed on the rear (north-facing) roof instead, which dramatically reduces production.
In this scenario, the east or west side of the roof may be the best viable option even if it is not optimal for production. Your installer should be familiar with your specific HOA's requirements before proposing a layout.
Before signing with any installer, verify they have pulled and reviewed your HOA's CC&Rs regarding solar. This is a step many homeowners skip and discover too late when the HOA rejects the permit application after panels are on order.
Questions to Ask During Your East-West Roof Site Assessment
A site assessment for an east-west roof should go deeper than the standard walk-through for a simple south-facing installation. Here are the specific questions worth asking every installer who comes to your home.
True east is 90 degrees, true west is 270 degrees, true south is 180 degrees. Many Temecula homes on streets that run slightly diagonal have roof faces at 100 or 260 degrees rather than true cardinal directions. This difference affects production modeling significantly.
You want a specific answer: dual-MPPT string inverter, microinverters, or string with power optimizers. 'Standard string inverter' without further detail is a red flag on an east-west roof.
An installer who cannot or will not separate production by roof plane is either not modeling the split correctly or is hiding a performance issue on one of the faces.
Two-story gables, roof vents, chimney shadows, and satellite dish mounts are common sources of self-shading on east-west roofs. Ask the installer to show you the shading simulation, not just the final production number.
This question weeds out installers who are planning to submit a permit without HOA review, which can cause project delays of 30 to 60 days or outright permit rejections.
A good installer can explain specifically how the west panel production overlaps with the evening TOU peak window and what percentage of your estimated peak-hour usage will be offset by direct west production.
For east-only or west-only roofs especially, battery sizing is integral to the financial case. Understanding whether the system is battery-ready before installation avoids costly retrofits.
Shading Analysis for East-West Roofs: What the Numbers Mean
Shading interacts with roof orientation in ways that catch many homeowners off guard. A south-facing roof with light shade from a single tree loses some production but typically retains strong output in the morning and afternoon around the shading window. An east or west facing roof has a narrower production window to begin with, so shading within that window has an outsized impact.
For an east-facing array, morning shade from a neighboring two-story home to the east is particularly harmful because it delays the start of the production window by one to two hours. If your east roof does not see direct sun until 9 or 10 AM due to a neighboring structure, the east face may contribute far less than a standard east-facing model would predict.
For a west-facing array, afternoon shade from mature trees on the western property line is the common culprit. Trees in Temecula and Murrieta tend to be relatively mature in subdivisions built in the 1990s and 2000s, and a row of 30-foot eucalyptus or pepper trees along the west fence line can eliminate several hours of afternoon west production.
Always ask for a shading analysis report from Aurora or a comparable tool before signing. The industry standard shading metric is TSRF (Total Solar Resource Fraction), expressed as a percentage of the unshaded resource at that location. An east-west roof with a TSRF above 80 percent on each face is generally a good solar site. A TSRF below 70 percent on either face warrants careful evaluation of whether that face is worth the cost of panels.
Long-Term Production: How East-West Arrays Age Over 25 Years
Panel degradation applies equally to all orientations. Modern solar panels lose roughly 0.4 to 0.5 percent of their output each year from thermal cycling, UV exposure, and gradual cell degradation. Over 25 years, that adds up to roughly 10 to 12 percent total production loss from year one.
For east-west arrays specifically, the degradation rate is not meaningfully different from south-facing arrays at the same pitch and climate. What changes is the baseline. If your east-west 7.2 kW system produces 9,300 kWh in year one, it will produce roughly 8,200 to 8,400 kWh in year 25 before accounting for any system expansion.
One factor that can accelerate degradation on west-facing panels in the Inland Valley is heat. West panels in Temecula absorb direct afternoon sun during the hottest part of the day and during summer months when ambient temperatures regularly reach 95 to 105 degrees. Panel temperatures of 130 to 145 degrees Fahrenheit are common on west-facing roofs in July and August. Higher panel temperatures reduce instantaneous output (roughly 0.3 to 0.5 percent per degree Celsius above 25C) and can slightly accelerate long-term degradation compared to panels in cooler coastal climates.
This does not make west-facing solar a poor choice for Temecula. The afternoon production during those hot hours still has high value under TOU-D-PRIME, even at slightly reduced efficiency. It does mean that panel quality matters more for west-facing arrays in hot inland climates. Premium panels with lower temperature coefficients perform better in this environment.
Frequently Asked Questions: East-West Roofs and Solar
Yes. East-west roofs are extremely common in Temecula and Murrieta tract neighborhoods and are fully viable for solar. An east-west split produces roughly 15 to 20 percent less total annual energy than a comparable south-facing array, but that gap can be closed by adding 2 to 4 extra panels. Under NEM 3.0, the east-west split actually has a self-consumption advantage because east panels cover morning loads and west panels cover afternoon and evening TOU peak hours.
A true south-facing roof at a 20 to 25 degree pitch in the Temecula area produces the maximum annual energy. A pure east or pure west facing array at the same pitch produces roughly 15 to 20 percent less annually. A split east-west system where half the panels face east and half face west produces output roughly equivalent to a single east or west array in total, but the production curve is broader and flatter across the day, which is a meaningful advantage under NEM 3.0's time-of-use billing.
NEM 3.0 pays very little for energy you export to the grid, often 4 to 8 cents per kilowatt-hour, while grid power during evening TOU peaks costs 40 to 55 cents. East panels produce in the morning when homeowners are running appliances, charging EVs, and operating HVAC before the day heats up. West panels produce in the afternoon and into early evening when TOU-D-PRIME and TOU-D-5-8PM rates are at their most expensive. A well-designed east-west system spreads production across those consumption windows and reduces the midday export surplus that a south-facing array often generates.
A single string inverter cannot handle an east-west split correctly because east and west panels reach their peak production at different times of day, and a single MPPT input cannot optimize both simultaneously. For a true east-west split, you need either a dual-MPPT string inverter with two separate inputs (one string per orientation), microinverters on each panel, or a string inverter with power optimizers such as SolarEdge. Without one of these solutions, your installer would have to put all panels on one orientation or accept significant production losses.
A rule of thumb is that a south-facing 6 kW system producing roughly 9,500 kWh per year in Temecula would require approximately 7 to 7.5 kW in an east-west split configuration to produce the same annual total. That translates to roughly 2 to 4 extra panels depending on panel wattage. Your installer should model this in Aurora or HelioScope using your specific roof pitch, azimuth, and any shading to give you an accurate panel count.
A west-only roof is still a viable solar site, especially under NEM 3.0. West panels capture afternoon and early evening production, which aligns well with TOU-D-5-8PM peak hours when grid power is most expensive. West-only systems typically produce 15 to 20 percent less annually than a south-facing system of the same size, but their production curve is better aligned with evening consumption than a south-facing system. For most Temecula homeowners on a TOU rate plan, a west-only system with properly sized storage can still deliver strong savings.
East-only roofs are the least ideal orientation but still viable. East panels produce morning energy, which is useful for early appliance loads, EV charging before the workday, and pre-cooling the home before afternoon heat. Morning production is less aligned with TOU peak pricing than west production, so east-only systems under NEM 3.0 have a harder time displacing the most expensive grid hours. If you have an east-only roof, adding battery storage or sizing the system slightly larger helps compensate by storing morning production for evening use.
Both microinverters and power optimizer systems work well for east-west roofs. Enphase IQ microinverters handle each panel independently, so east panels and west panels each optimize separately without any shared MPPT constraints. SolarEdge power optimizers with a dual-MPPT inverter achieve similar results. Microinverters have a slight advantage in systems where east and west roof areas are unequal in size, because there is no need to balance strings. The critical point is that a simple single-MPPT string inverter without optimizers is a poor choice for an east-west split.
Yes. If your roof is heavily shaded, has a very low pitch, or faces directions that significantly limit production, a ground-mounted array is a viable alternative for Temecula and Murrieta homes with adequate yard space. Ground mounts can be oriented true south at any pitch, maximizing annual production. HOA restrictions, setback requirements, and available square footage are the main constraints to evaluate. Ground mounts typically cost 10 to 20 percent more than roof mounts per watt due to racking and trenching, but the production advantage can offset that cost over the system life.
East-West Roof Solar Checklist for Temecula Homeowners
- ✓Know which way your roof faces and check if any face is shaded by trees or neighboring structures
- ✓Pull your HOA CC&Rs and check the solar panel visibility rules before inviting any installer
- ✓Review your last 12 months of SCE bills to identify your peak usage hours and EV charging load
- ✓Decide whether battery storage is part of your plan before site assessments so installers size appropriately
- ●Installer proposes a single-MPPT string inverter for an east-west split without explanation
- ●Production estimate does not separate east and west roof plane output
- ●No shading analysis shown, especially if there are neighboring structures or mature trees
- ●Savings projection shows large export credits without explaining NEM 3.0 export rates
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