Hardware Per Kit
| Component | Estimate | Context |
|---|---|---|
| Solar panels (minimum 4 kW) | $400–$500 | Solar panels are the cheapest component per watt in the entire kit. At current container-bulk pricing, a 550W tier-1 panel costs well under $50. Panel prices have fallen over 99% since 1976 and continue to drop. This is a commodity. |
| Hybrid inverter + LiFePO₄ battery stack (min. 10 kW + 10 kWh) | $2,500–$3,000 | The single largest cost item. This estimate is based on European wholesale distributor list prices for complete inverter+battery sets (e.g. Sungrow, Pylontech, GoodWe bundles at ~€3,000). At direct manufacturer volume pricing, the real cost is significantly lower. The hybrid inverter eliminates the need for a separate charge controller — one unit handles MPPT, battery management, and AC output. |
| Crate structure | $150–$250 | Aluminum extrusions cut to length, hinges, locking mechanisms, panel rail channels, central pillar framing, pallet base, and all structural hardware. Aluminum is lightweight, corrosion-resistant, and cheap at volume. The crate serves as both shipping container and permanent installation structure — no waste. |
| Metering | $40–$60 | A Raspberry Pi or equivalent single-board computer with current sensors. Monitors generation and consumption. Not a sophisticated smart meter — just enough to track usage and support revenue collection. |
| LoRa mesh node + antenna | $20–$30 | A Meshtastic-compatible LoRa board (e.g. Heltec) costs under $20 at retail. At volume, with antenna and weatherproofing, this is one of the cheapest components in the kit. |
| Distribution enclosure | $40–$80 | IP-rated box with DIN rail, circuit breakers, outlets, surge protection. Standard industrial electrical components. Factory-assembled onto the pillar. |
| Cabling and connectors | $40–$70 | MC4 connectors at panel junction points, DC and AC cabling, grounding hardware (earth rod, conductor, clamps). Most wiring is pre-done at the factory — the cable runs are short and standardized. |
Hardware target: ~$3,500 per kit. The inverter+battery combination dominates the cost at roughly 70%. Everything else — panels, structure, mesh, metering, cabling — is the remaining 30%.
Assembly Factory
Components arrive at the assembly factory from multiple manufacturers. The factory mounts the inverter, battery, distribution box, metering unit, and mesh node to the central pillar. It wires everything — DC from roof junction points to inverter, AC from inverter to outlet box, grounding bus, metering connections. It tests each unit. It folds the roof frame, packs the panels flat inside, and loads the crate onto a pallet.
Assembly labor and factory overhead are included in the hardware cost estimate, not broken out separately. The assembly process is repetitive and standardizable — this is production line work, not bespoke engineering. At 400,000 units, the factory becomes a dedicated operation.
Container Economics
The crate is designed so that at least 24 fit in a standard 40-foot shipping container. This is a hard design constraint — it directly drives the per-kit shipping cost.
| Parameter | Value |
|---|---|
| Crates per 40ft container | 24 (minimum) |
| Container freight cost (contracted, full container) | $2,000–$4,000 per container |
| Freight cost per kit | $85–$170 |
| Port handling per kit (duty-free) | $20–$50 |
SunCrate ships full containers on contracted freight rates — not shared space, not spot market. At the volumes involved (500+ containers for the first mass batch alone), freight contracts are negotiable. Duty-free import is a clearance requirement for partner countries, so the only port costs are unavoidable handling fees.
Every additional crate that fits in a container reduces the per-kit shipping cost. A design that fits 28 instead of 24 saves roughly 15% on freight. This is why container packing efficiency is a judging criterion in the SunCrate Prize.
Non-Hardware Per Kit
| Item | Estimate | Context |
|---|---|---|
| Shipping (full container, contracted) | $100–$200 | Full container rates from manufacturing region to African ports. Contracted volume pricing, not spot market. |
| Port handling | $20–$50 | Duty-free import — customs duties are waived as a clearance requirement. Remaining costs are unavoidable handling and clearance fees. |
| Last-mile transport | $50–$200 | The most variable cost in the budget. A village 50 km from the port on a paved road costs almost nothing. A village 800 km inland on an unpaved road in rainy season costs significantly more. Delivery is batched — one truck carries multiple crates to a region. |
| Deployment labor | $50 | Local crew, paid fairly. The work is mechanical — unfold, slide, clip, switch. Not electrical contracting. |
| Spare parts | $5–$10 | A few fuses and breakers. All major components are under standard manufacturer warranty. There are no consumables, no filters, no fluids. |
Non-hardware target: ~$350 per kit. Last-mile transport is the biggest variable. In countries with good road infrastructure near the coast, non-hardware costs will be well under $250. In landlocked countries with difficult terrain, they could exceed $400.
What Is Not in the Budget
The line items that are absent from this budget are as important as the ones that are present:
- No training costs. Deployment is mechanical — open, unfold, slide panels, click connectors, switch on. You show the first crew once. There is no training programme, no certification course, no instructor salary.
- No operator costs. The system runs autonomously. There is no operator. The inverter manages everything. Nobody needs to be paid to watch it.
- No ongoing service contracts. There is no SunCrate service team visiting villages. The system either works (it will — it has no moving parts and everything is under warranty) or a component fails and gets replaced under warranty.
- No software licensing. The metering runs on open-source software. The mesh runs Meshtastic. There are no subscriptions.
- No land costs. The crate sits on the ground. It does not require a building, a foundation, or a lease.
- No grid connection. This is off-grid. There are no utility interconnection fees, no permits, no net metering agreements.
Every one of these absent line items is a cost that exists in conventional electrification projects. Their absence is a major reason the per-kit cost is as low as it is.
Total Per Kit
| Category | Target | Share |
|---|---|---|
| Hardware | ~$3,500 | ~80% |
| Non-hardware | ~$350 | ~8% |
| Contingency (15%) | ~$575 | ~12% |
| Fully loaded | ~$4,400 | 100% |
80% of the cost is hardware. 8% is getting it there. 12% is contingency. SunCrate's coordination team is a real cost — managing procurement, government relationships, manufacturer certification, and deployment logistics requires real people — but it is a small fraction of the total because the kit itself requires almost no ongoing administration once deployed.
How This Compares
$4,400 per village. What does that buy compared to the alternatives?
| Approach | Typical cost per village |
|---|---|
| SunCrate kit | ~$4,400 — fully loaded, deployed, autonomous |
| Grid extension | $20,000–$100,000+ — depends on distance from existing grid; requires ongoing utility operation; most remote villages are never reached because the economics don't work |
| Diesel generator (lifetime cost) | $15,000–$50,000+ over 10 years — fuel, maintenance, replacement; noisy, polluting, and the fuel supply chain is unreliable in remote areas |
| Bespoke off-grid solar project | $10,000–$30,000+ — custom design, site survey, specialist installation, project management overhead; each village is a separate project |
SunCrate is cheaper than every alternative because it eliminates the things that make the alternatives expensive: custom design, specialist labor, ongoing fuel, utility infrastructure, and per-project overhead. Standardization is the entire point.
Programme Scale
| Phase | Kits | Estimated Cost | Per Kit |
|---|---|---|---|
| Qualification batch | 500 | ~$3M | ~$6,000 (low volume) |
| First deployment (~20/country) | 1,000 | ~$5.5M | ~$5,500 |
| First mass batch (10 countries) | 13,000 | ~$60M | ~$4,700 |
| Second wave | 50,000 | ~$210M | ~$4,200 |
| Continental | 400,000 | $1.5–2.0B | $3,800–$5,000 |
Per-kit cost decreases at scale because of manufacturer volume discounts, established logistics routes, and fixed coordination costs being spread across more units. The qualification batch is expensive per unit because it is small and includes design validation. By continental scale, the per-kit cost approaches the hardware floor.
First Mass Batch — Detailed
| Line Item | Total |
|---|---|
| Hardware (13,000 kits × $3,500) | $45,550,000 |
| Logistics (freight, port, last-mile, bonded hubs) | $5,585,000 |
| Deployment (labor, spares) | $754,000 |
| Coordination and overhead | $1,600,000 |
| Contingency (15%) | $8,023,000 |
| Total | ~$60 million |
Coordination and overhead — the non-profit's core team, country engagement, legal, certification, and monitoring — is $1.6 million out of $60 million. That is 2.7% of the total budget. The rest is hardware and getting it there.
Cost Sensitivity
What moves the per-kit cost, and what doesn't?
| Variable | Impact | Notes |
|---|---|---|
| Inverter + battery price ±20% | ±$500–600 | The dominant cost driver. LFP battery prices have been falling for a decade and are expected to continue. A 20% drop in the inverter+battery combo saves $500+ per kit — at 400,000 kits, that is $200 million. |
| Last-mile transport ±50% | ±$50–100 | The biggest source of country-to-country variation. Coastal countries with good roads are cheap. Landlocked countries with poor infrastructure are expensive. This cannot be engineered away — it is geography. |
| Shipping rates ±30% | ±$30–50 | Container freight is volatile but manageable through contracted rates. At 24 kits per container, even large rate swings have modest per-kit impact. |
| Volume (10K → 100K kits) | -10% to -20% | Manufacturing volume discounts, logistics optimization, and spreading fixed costs. The programme gets cheaper as it scales. |
| Panel prices | Minimal impact | Panels are already so cheap (~$400–500 for the full array) that even large percentage swings barely move the total kit cost. This was not true a decade ago. |
The budget is most sensitive to inverter+battery pricing and least sensitive to panel pricing. This is the opposite of what most people assume about solar economics — the panels are almost free; the storage and power electronics are where the money is.
Village Revenue and Sustainability
Once deployed, a SunCrate kit generates revenue from energy services. This revenue is not extracted by SunCrate — it stays in the village and is managed by village leadership.
Revenue sources
- Phone charging: In communities without electricity, phone charging is a paid service. People currently walk hours or pay traders to charge their phones. A SunCrate station can charge 40–50 phones simultaneously.
- Lighting fees: Access to evening lighting for homes, shops, and community spaces — either through direct connection or portable battery lanterns charged at the station.
- Tool and equipment access: Power tools, welding, grinding, sewing machines — services that previously required a diesel generator or a trip to a town with grid power.
- Cold storage: A clinic fridge for vaccines. A community fridge for perishable produce. Cold chain access that did not exist before.
- Entertainment and communication: Charging fees for radios, speakers, and other devices. Access to the mesh communication network.
Revenue vs. maintenance
Annual maintenance cost is minimal — a few fuses and breakers per year. All major components are under standard manufacturer warranty. There are no moving parts, no consumables, no operator salary. A village generating even modest revenue from charging and lighting easily covers maintenance costs and begins accumulating surplus for battery expansion.
Village autonomy
SunCrate delivers the kit. How the village organizes itself around it — who manages the charging, how fees are set, how revenue is shared, who decides on expansion — is entirely up to the community. Village governance structures, cultural norms, and local economics vary enormously across the deployment zone. SunCrate does not dictate, monitor, or impose any particular ownership model, revenue structure, or management approach. The kit belongs to the village. What they do with it is their business.
Self-funded growth
The surplus from energy services funds expansion. Additional battery modules plug into the existing stack. Additional solar panels can be added to the inverter's excess PV capacity. This growth is organic, village-paced, and requires no external funding. The programme provides the seed; the village economy does the rest.
A Note on These Numbers
These estimates are conservative. They are based on European wholesale distributor list prices — which include distributor margins, European logistics costs, and European market positioning. Direct manufacturer procurement at the volumes SunCrate targets will be cheaper. How much cheaper depends on negotiations that have not yet happened.
We publish conservative estimates rather than optimistic ones because underpromising and overdelivering builds trust with funders. If the first mass batch comes in at $50 million instead of $60 million, that is 2,600 additional kits — or a larger reserve pool, or a head start on the second wave. The budget has room built in. That is intentional.