Generation plant design · PV + BESS

From site polygon to a reconciled design study.

Complete design studies for utility-scale solar + storage: site layout, single-line diagrams, P50/P90 yield, and project finance — reconciled in a single deliverable. Feasibility-grade, not for construction.

Request a package →See sample project

PROJECTPV + BESS

SCOPEDesign package

REGIONCAISO · SP15

SHEET00 — COVER

REVB

What you get

Engineering that shows its work — fast, and without the black box.

Fast, without the queue

A complete design set without the long EPC queue.

No black box

Every number traces to a formula and a datasheet. Open the model and check it yourself.

Auditable finance

P50/P90/P95 yield, debt sculpted to your DSCR, and a loss waterfall your IE can audit.

Capability scheduletypical per project

76 MWdc

+ 100 MW / 400 MWh BESS, reconciled on one site

P50·P90·P95

exceedance-rated annual energy

1.35×

min DSCR — debt sized to lender terms

15 sheets

drawing set: single-lines, schedules, BOMs

Every number → formula + datasheetSLD · DXF · PDF · CSV

Two study levels

01 / STUDY LEVELS

Every project is at a different stage. The two levels answer different questions — with the same rigor.

N1 · SCREENING

Does this land support a plant?

For evaluating sites before committing capital to larger studies.

Preliminary layout on the actual parcel — public elevation data (USGS 3DEP)
Estimated DC/AC capacity and major equipment counts
Annual P50 with site meteorology (PVGIS)
Order-of-magnitude CAPEX and site red flags

Answers → go / no-go, and what project size to keep talking about.

N2 · FEASIBILITY

The project is getting serious

For sizing debt, negotiating interconnection, and presenting numbers a third party can audit.

Everything in N1, plus detailed layout: roads, setbacks, BESS yard, substation
Electrical design: strings, inverter blocks, MV routing, bill of materials
P50 / P90 / P95 with a documented loss model — one-diode, bank-grade model class
Itemized CAPEX and project finance: LCOE, NPV, DSCR-sculpted debt
Full drawing set + engineering report with declared data sources

Answers → whether the project pencils out, on what numbers, and why those numbers deserve confidence.

The design package

02 / DELIVERABLES

EE-01 · SITE

Site plan

Tessellated layout, exclusions, BESS and substation reservations — in real coordinates (State Plane).

→ SVG · layered DXF

EE-02 · ELECTRICAL

Single-line diagrams

PV + BESS plant single-line to the GSU/POI, MV collection, inverter blocks — terminating at the interconnection boundary.

→ SLD per discipline

EE-03 · ENERGY

Annual yield

8760 hourly production with backtracking, traceable losses, and P50 / P90 / P95 exceedance.

→ GWh-yr, specific yield, PR

EE-04 · FINANCE

Project finance

LCOE, NPV, IRR, and DSCR-sculpted debt sizing — P90 hybrid case.

→ DSCR, levered IRR

EE-05 · QUANTITIES

Schedules & BOM

Cable schedule, equipment summary, and bill of materials — PV and BESS, procurement-ready.

→ exportable CSV

EE-06 · SET

Drawing set

Everything above assembled: 15 framed, numbered sheets with a reconciled cover.

→ PDF deliverable

A purpose-built design engine

03 / THE ENGINE

Software gives you a design you still have to defend. A study arrives defended.

Reconciled, not estimated

PV and BESS co-designed on one site; the area the BESS takes trims the PV and everything recomputes.

Independently benchmarked

The engine's implementation is validated against NREL's (SAM) to within 0.2% on the same model class. The link-by-link discrepancy table is available on request.

Two model classes, declared

PVWatts-class linear for screening; one-diode (De Soto) for bankable studies. Every study states which one it ran.

Exceedance + DSCR

P90 exceedance + debt sculpted to a minimum DSCR.

Iterate in clicks

Change PPA, power, or GCR → re-run → full package. Sensitivity in seconds.

Real CAD, not a spreadsheet

Layered DXF, SVG, and PDF. Drawings an EPC opens and uses.

Full traceability

Every domain number traces to a formula or a datasheet. Auditable.

Honest scope

The package terminates at the POI. Substation internals go to their specialist — no over-promising.

Three steps

04 / PROCESS

01INPUT

Your site

Site polygon, exclusions, and topography. GeoJSON, Shapefile, or DEM — or your raw coordinates.

02ENGINE

The design runs

Layout, electrical, energy, finance, and BESS — reconciled in a single pass.

03OUTPUT

The package

Drawings, schedules, and the PDF drawing set. With the numbers a lender reviews.

Representative case

PV + BESS plant, single site

05 / SAMPLE

Installed PV

76.14 MWdc

BESS

100 / 400 MW/MWh

P50 energy

158.1 GWh-yr

P90 energy

146.6 GWh-yr

LCOE

34.5 $/MWh

Min DSCR