MODMEC vs Single-axis
Generation Profile Simulator
MODMECGeneration Profile Simulator
PUBLIC BETA · DAILY SCENARIO REPORT
SCENARIO
Los Angeles, CA
Southern California cloud market · representative date 2026-08-04
Prepared from the current simulator inputs
- PV capacity
- 1.0 MWp
- Load profile
- data center
- Peak site load
- 0.65 MW
- Battery
- 1.0 MWh / 0.5 MW
- POI limit
- 0.80 MW
- Priority window
- 4 PM–8 PM
- Energy values
- $95 / $35 per MWh
- Land / GCR
- 3.4 acres / 0.35
MODMEC vs Single-axis
MODMEC + BESS comparison
Gross delivered-energy value
| Configuration | Daily PV | Before 10 AM | After 4 PM | Direct to load | Grid import | Value / acre |
|---|---|---|---|---|---|---|
| Fixed tilt | 6.17 MWh | 0.76 MWh | 0.88 MWh | 5.50 MWh | 10.26 MWh | $79/day |
| Single-axis | 8.75 MWh | 1.79 MWh | 1.95 MWh | 7.35 MWh | 8.41 MWh | $125/day |
| MODMEC Dual-axis | 9.33 MWh | 2.00 MWh | 2.17 MWh | 7.78 MWh | 7.98 MWh | $134/day |
| Single-axis + BESS | 8.75 MWh | 1.79 MWh | 1.95 MWh | 7.35 MWh | 7.69 MWh | $135/day |
| MODMEC + BESS | 9.33 MWh | 2.00 MWh | 2.17 MWh | 7.78 MWh | 7.43 MWh | $140/day |
PLANNING CONCLUSION
In this illustrative daily scenario, MODMEC changes the timing of useful solar delivery and the interaction between PV, load, BESS and the interconnection limit. The result supports a site-screening hypothesis; it is not a production forecast, financial offer or measured pilot result.
METHOD
Fifteen-minute solar-position comparison. Single-axis uses a north–south horizontal axis, ±60° rotation and backtracking. MODMEC uses an idealized two-axis planning envelope.
CORE ASSUMPTIONS
Clear-sky daily irradiance, 90% BESS round-trip efficiency, user-entered load, POI, energy-value, land and GCR assumptions.
LEGAL / RELIANCE NOTICE
Illustrative planning output only. This report is not an engineering design, performance guarantee, bankable energy assessment, tariff analysis, interconnection study, PPA quote, investment advice, offer or approval. Results depend on user-entered and idealized assumptions and require independent professional review before any engineering, procurement, construction, financing or operating decision. No utility, customer, site operator or data provider has reviewed, approved or endorsed this report.
Annual weather inputs, when included, are derived from European Commission PVGIS data. MODMEC performs additional calculations and changes; PVGIS does not sponsor or validate those calculations.
POWER PROFILE
Representative 24-hour delivery profile
PV lines show modeled array output. “+ BESS” lines add battery discharge available to the site during the selected priority window. Click legend items to isolate a series.
Energy before 10 AM
2.00 MWh↑ 12% vs Single-axisEnergy after 4 PM
2.17 MWh↑ 11% vs Single-axisGrid import — MODMEC + BESS
7.43 MWh↓ 3% vs Single-axis + BESSIllustrative daily energy valueGross modeled value using your priority-hour and other-hour assumptions. It excludes tariffs, demand charges, battery degradation, CAPEX and OPEX.
$477/day+$5/acre/day vs Single-axis + BESSVALUE DEFINITION
Gross modeled value of energy delivered directly to the load, exported through the POI or discharged from BESS, using the entered priority-hour and other-hour values. It is not project revenue, electricity-bill savings or profit; tariffs, demand charges, export compensation, battery degradation and project costs are not included.
DETAILED COMPARISON
From annual-MWh thinking to useful-energy decisions
| Configuration | Daily PV | Before 10 AM | After 4 PM | Direct to load | To BESS | Grid import | Peak grid draw | BESS cycles | Export POI use | Value / acre |
|---|---|---|---|---|---|---|---|---|---|---|
| Fixed tilt | 6.17 MWh | 0.76 MWh | 0.88 MWh | 5.50 MWh | 0.00 MWh | 10.26 MWh | 0.65 MW | 0.00 | 7% | $79/day |
| Single-axis | 8.75 MWh | 1.79 MWh | 1.95 MWh | 7.35 MWh | 0.00 MWh | 8.41 MWh | 0.65 MW | 0.00 | 13% | $125/day |
| MODMEC Dual-axis | 9.33 MWh | 2.00 MWh | 2.17 MWh | 7.78 MWh | 0.00 MWh | 7.98 MWh | 0.65 MW | 0.00 | 14% | $134/day |
| Single-axis + BESS | 8.75 MWh | 1.79 MWh | 1.95 MWh | 7.35 MWh | 0.95 MWh | 7.69 MWh | 0.65 MW | 0.72 | 4% | $135/day |
| MODMEC + BESS | 9.33 MWh | 2.00 MWh | 2.17 MWh | 7.78 MWh | 0.95 MWh | 7.43 MWh | 0.65 MW | 0.56 | 5% | $140/day |
The second axis matters here because it changes when solar is useful—not only how much is produced.
For Los Angeles, CA on this representative day, the model shows 12% more PV energy before 10 AM and 11% more after 4 PM than Single-axis. With the same BESS and load, MODMEC + BESS changes grid import by 3% down, daily gross delivered-energy value by 4% up, and battery throughput by 0.16 equivalent cycles. This supports a timing-and-constraint hypothesis; it is not yet an annual bankability or ROI claim.
Generation timing
The model estimates a 12% morning and 11% late-day energy lift for MODMEC versus the same-size single-axis baseline on this representative day.
Battery interaction
In this dispatch, MODMEC sends 0.95 MWh to the battery and uses 0.56 equivalent cycles while supporting the selected priority window.
Value, not only yield
With the entered hourly values, MODMEC + BESS increases modeled daily gross delivered-energy value by 4% versus Single-axis + BESS. The commercial case still requires annual weather, tariff, demand-charge and project-cost inputs.
ANNUAL PLANNING · BETA
Move from a representative day to a TMY business case
Run an 8,760-hour Typical Meteorological Year for the selected location, then compare Single-axis + BESS with MODMEC + BESS under editable tariff or PPA assumptions.
PVGIS TMY ready
Synthetic MODMEC screening presets only. They are not copied from or attributed to any named utility and do not represent a current tariff, quotation, PPA, avoided-cost rate or endorsement. All fields remain editable; replace them with verified tariff, PPA and interval-load data for a site-specific review.
8760
Ready for the selected market
The run uses the current PV, load, BESS, POI, priority window, GCR and acreage inputs from the control room above.
MODEL TRANSPARENCY
Methodology & assumptions
Enough detail for a technical reviewer to understand what drives the result—without presenting a planning model as bankable engineering or disclosing proprietary control logic.
MODEL VERSIONPublic Beta v0.2July 2026
Weather and time resolution
Daily results use a fifteen-minute solar-position and clear-sky irradiance model. Annual results use hourly PVGIS Typical Meteorological Year irradiance, temperature and wind data for the selected coordinates.
Solar geometry
Fifteen-minute sun-position model using site latitude, longitude, date and clear-sky irradiance. Fixed tilt faces south; single-axis uses a north–south horizontal axis with ±60° rotation and backtracking at the entered GCR. MODMEC is represented by an idealized two-axis planning envelope pending calibration to exact tracker geometry and measured pilot data.
Load and battery dispatch
Unless project data are supplied, load profiles are synthetic screening shapes. PV serves load first, surplus charges BESS, and BESS discharges during the selected priority window. The model applies 90% round-trip efficiency.
Energy-value logic
Daily value is the gross modeled value of energy delivered to load, exported through the POI or discharged from BESS using the entered hourly values. It is not revenue, bill savings, ROI or profit. Annual value presets are synthetic, editable screening assumptions and are not utility tariffs, offers or quotations.
Land, POI and market presets
Acreage, interconnection capacity and GCR are user-entered constraints. Locations represent relevant comparison markets; inclusion does not indicate a customer relationship, confirmed project, available interconnection capacity or site feasibility.
Independence and non-endorsement
No utility, customer, site operator or data provider has reviewed, approved, sponsored or endorsed the MODMEC model. Third-party data sources are identified only to document model inputs and do not imply affiliation.
Calibration still required
Exact MODMEC geometry, row spacing, horizon and near-shading, soiling, clipping, curtailment, availability, stow events, degradation, battery aging, full tariffs and CAPEX/OPEX require detailed engineering and measured pilot calibration.