Power for sites the grid doesn't reach.
BA6 Project Solutions engineers and sources off-grid solar, battery storage and transformer systems for EPCs, developers and data-centre owners. We write the specification, price the equipment, structure the financing and stay until it is energized.
Engineering services
Independent technical work for owners and EPCs who need the design, the spec and the numbers right before money is committed.
- Electrical, mechanical, civil and structural design
- Preliminary design and optimization
- Procurement support and IFC drawing sets
- Owner's and independent engineering, project monitoring
Systems & equipment
Sourced, specified and delivered as a package, so the PV, storage, EMS and medium-voltage pieces are designed to work together.
- Battery containers and all-in-one cabinets
- PV inverters and plant controls
- Dry-type and oil-filled transformers
- Skids, enclosures and protection
Financial services
The same team that designs the project builds the model and structures the capital that pays for it.
- Financial modeling
- Equity financing
- Debt financing
- Tax credit transfers and preferred equity, US$20M to US$300M per deal
From first question to energized.
Scope
Load profile, voltage, grounding, site conditions. We write down what the system has to do.
Specify
A data sheet your engineer can review and a vendor can quote without guessing.
Source
Quotes compared line by line against the spec, with mismatches flagged before you order.
Support
Drawings, submittals, factory tests and commissioning, through to energization.
Built for the hard sites.
Projects across the United States (Texas, Arkansas, Virginia, Nevada, California) and the Philippines.
Off-grid data centres
Solar and storage feeding a grounded load through an isolation transformer, with the fault current and grounding worked out up front.
Islands and cooperatives
Hybrid solar, battery and generator systems that cut diesel use where fuel is shipped in.
Industrial and C&I
Peak shaving, backup power and generator replacement behind the meter.
EPCs and developers
A specification and procurement partner for teams that build but don't want to guess at equipment.
Get the design right before you buy.
Most cost overruns on solar and storage projects start as an unclear specification. We write the spec, test the proposals against it, and give your engineer something concrete to approve.
Four disciplines under one roof.
Power system design
Single-line diagrams, short-circuit and protection studies, grounding, cable and transformer sizing.
Equipment and enclosures
Cooling and ventilation, skid and container layout, equipment handling and access.
Site works
Grading, drainage, access roads, trenching and equipment pads.
Foundations and racking
PV racking and array foundations, equipment supports, wind and seismic loads.
From preliminary design to project monitoring.
Preliminary design and optimization
Layout, energy yield, battery sizing and cost, tuned together for the lowest cost per delivered kWh.
Procurement
Equipment specifications, RFQ packages, proposal comparison and clarifications.
IFC drawing sets
Issued-for-construction drawings across all four disciplines.
Owner's engineering
Technical representation for the owner through design, build and commissioning.
Independent engineering
Third-party review of design, equipment and performance for lenders and investors.
Project monitoring
Progress and performance tracking from construction through operation.
Specialist services
Sizing and budget
PV, battery energy and power, transformer rating and autonomy hours, with a budgetary price range.
Specification
Equipment data sheets with every parameter stated: ratings, losses, sound, BIL, enclosure, terminations and tests.
Proposal comparison
Vendor quotes checked line by line against your spec, with a plain list of mismatches to send back.
Procurement support
RFQ packages, clarifications, factory test witnessing and submittal review.
System architecture
Grounded and ungrounded sources, separately derived systems, neutral paths, ground-fault detection.
Energization support
Check sheets, test review and punch-list tracking to a clean handover.
What you receive
| Specification package | Equipment data sheet, status-tagged: set by the owner, estimated, or open for the engineer. |
|---|---|
| Review checklist | Open design decisions listed for your engineer of record, each with the reason it matters. |
| Quote comparison | Side-by-side table of each proposal against the spec, plus a draft reply to each vendor. |
| Drawings | Anonymized single-line diagrams for tender, so vendors can quote without client identifiers. |
One package. Designed to work together.
We source the major pieces of a solar-plus-storage site and specify them as a system, so grounding, voltages and protection line up before anything ships.
Battery containers and cabinets
Containerized and all-in-one cabinet BESS with PCS and EMS, sized for power and autonomy.
PV inverters
Three-phase string inverters in the 100 to 125 kW class, matched to the site voltage and plant controller.
Transformers
Dry-type isolation and step-up transformers, specified to IEC or IEEE.
Switchgear, skids, enclosures
Skid bases, IP55 enclosures, double lug sets for phase-2 expansion, protection and metering.
Packages
| Package | Typical scale | Contents |
|---|---|---|
| Compact C&I | 100 kW to 1 MW | PV inverters, battery cabinets with EMS, protection and metering |
| Site power | 1 to 5 MW | PV, battery containers, isolation transformer, switchgear on skid |
| Off-grid campus | Above 5 MW | Engineered to order, with generator integration and grounded load side |
A project that closes needs a model that holds up.
We build the financial model and help structure the capital, from equity and debt to tax equity. Because our engineers work on the same projects, the yield, capex and O&M in the model come from the design, not from a template.
Financial modeling
Project cash-flow models with scenarios and sensitivities, including storage revenue from ancillary services and arbitrage, and system designs tuned for cost and payback.
Preferred equity
We advise on and arrange preferred equity, sponsor equity and co-investment structures, with investor materials and returns analysis for each class of capital.
Debt financing
Construction and term debt packages, lender-ready models, and independent engineering reports to support the credit case.
Tax credit transfers
We advise on and arrange the sale of tax credits for US projects, with the modeling behind pricing and terms, subject to current law and your tax adviser.
One team, one set of numbers.
| Design to model | Energy yield, equipment cost and O&M assumptions come directly from the engineering work. |
|---|---|
| Model to lenders | Models are structured so a lender or investor can audit every input and trace it to a source. |
| Independent review | Our independent engineers can review the technical case that supports the financing. |
| Optimization | Residential and C&I systems are sized for lowest cost and shortest payback; utility-scale systems for return on capital. |
Pick the problem. We'll size the system.
Off-grid power
Sites with no grid, or a grid too weak to rely on. Solar and storage carry the load; a generator covers the long tail.
Diesel displacement
Cut fuel burn by letting solar and batteries run the base load.
Peak shaving
Flatten demand charges with a battery sized to the shape of your load.
Grid services and arbitrage
Utility-scale and standalone batteries earning from ancillary services and price spreads.
Backup and microgrids
Seamless transfer for critical loads, with the grid as one of several sources.
Data centres
High, steady load with strict power quality. Grounding and harmonics (K-rated transformers) matter here.
Islands and electric cooperatives
Remote communities where fuel is expensive and outages are routine.
Mining, resorts, agriculture
Remote operations that run all day and pay a lot for fuel.
Manufacturing
Plants that need to ride through dips and cap peak demand.
Healthcare and cold chain
Backup power for critical load such as vaccine storage.
Research facilities
Reliable, clean power for labs and instruments.
Hotels and hospitality
Lower power bills and ride-through during outages.
Residential
Systems optimized for cost and short payback.
Rough sizing calculator
Budgetary only. Enter your load and the autonomy you need.
Assumes 90% usable depth of discharge, 90% round-trip efficiency, 0.80 PV performance ratio, and the transformer loaded to 80% at peak. Final sizing needs a load study and site data.
Real specifications, shown in full.
Client names stay private. The technical content does not.
2000 kVA isolation transformer for an off-grid data centre
The owner needed a transformer between solar and battery inverters and an off-grid data-centre load. The source side had to stay ungrounded and the load side grounded. We worked out the architecture, wrote the data sheet, and compared a vendor proposal against it. The biggest mismatch was an indoor NEMA 1 enclosure offered against an outdoor IP55 requirement.
| Connection | Wye-wye (Yyn0), isolated windings; buried delta tertiary for heating and harmonics |
|---|---|
| Harmonic rating | K-8, with neutral pads rated 200% of phase current |
| Enclosure | IP55 outdoor on skid base, filtered ventilation for a high-dust site, C4H corrosion finish |
| Taps | 1 above, 1 below at 5%, de-energized |
| Terminations | Double lug sets per phase and neutral for phase-2 switchgear |
| Full-load current | About 2,782 A at 415 V |
Project portfolio
Off-grid mobile data centre
Solar PV and battery storage powering a mobile data centre with no grid connection.
DC-coupled, grid-connected solar and storage
Grid-connected solar with DC-coupled batteries, interconnected with the local utility.
Backup battery for critical data-centre load
Battery power that keeps critical data-centre load running through grid outages.
500 MWdc grid-scale project with 160 MWh of storage
Utility-scale project spanning two states.
Battery for ancillary services and energy arbitrage
Storage earning revenue from grid services and from buying low and selling high.
Backup power for vaccine storage
Battery backup for critical load, so vaccines stay cold through outages.
Research facility
Solar and storage supporting a research facility.
Hotels
Solar and storage for hotels.
Residential systems
Optimized for low cost and short payback.
Data sheets you can send to a vendor.
Every parameter stated, every line tagged so your engineer knows what is fixed and what still needs a decision.
2000 kVA outdoor dry-type isolation transformer
415Y/240 V Yyn0, K-8, IP55, aluminum windings, class 220 °C. Rev 10.
Battery container and cabinet checklist
Ratings, cycle life, cooling, fire protection, communications and EMS interface.
PV inverter selection sheet
Voltage, MPPT range, neutral handling, auxiliary power and plant controller interface.
Key parameters in the transformer sheet
| Parameter | Value |
|---|---|
| Rating | 2000 kVA, 3-phase, 60 Hz |
| Impedance | 5.5% ±7.5% tolerance |
| Insulation / rise | Class 220 °C, 150 °C average winding rise |
| BIL | 10 kV on both windings |
| Losses | No-load 3,000 W or less; load 13,000 W or less at 75 °C |
| Efficiency | 99.28% or better at 35% load |
| Sound | 66 dBA |
| Shield | Aluminum electrostatic shield with accessible ground; copper optional |
| Cooling | Natural air; optional dual-stage forced air under thermostat control |
| Site limits | 40 °C maximum ambient, 1000 m maximum altitude |
| Standards | IEC 60076 series, IP55 per IEC 60529; no UL listing required |
The full sheet also covers terminations, accessories, factory tests and quote requirements. Request the PDF or Word version.
Engineers who also buy the equipment.
BA6 Project Solutions Inc. sits between the people who design power systems and the people who build them. We write specifications like an engineering firm and source equipment like a supplier, so the two stay in step.
Where we are
Philippines: Bonifacio Global City (BGC), Metro Manila.
United States: Sheridan, Wyoming.
How we operate
| Vendor neutral | We recommend what meets the spec, not what pays the highest margin. |
|---|---|
| Numbers stated | Every claim on a data sheet is tagged: set, estimated, or open. |
| Anonymized by default | Tender drawings go out without client identifiers. |
Tell us about the site.
Send us a short email. The more you tell us, the faster we can come back with real questions and a budget range.
The button opens your email app with a short checklist filled in. You can also write to us directly at info@ba6projectsolutions.com.
Helpful to include
| Who you are | Your name, company, and whether you are an EPC, developer, site owner or operator. |
|---|---|
| The site | Location, peak load, system voltage and frequency. |
| The system | Battery autonomy needed, and whether you are looking for engineering, equipment, financing, or all three. |
| Timing | When you need it energized. |
Offices
Bonifacio Global City
Metro Manila
Sheridan, Wyoming
United States office