Solar refrigerators, freezers and carriers built for immunization programs at off-grid health facilities. Our Gen 2 systems need a solar array about 50% smaller and keep vaccines cold through rainy stretches.
Both store cold in phase-change thermal storage. The difference is what carries the load when the sun is weak.
DCRV36 · DCRV75 · DCRV36i
BFRV55
Every solar vaccine refrigerator is rated for a minimum amount of sunlight, called the solar radiation reference period. It is the average daily sunlight, in the cloudiest month of the year, the system needs to keep vaccines in range. The lower the number, the more places it works.
1 kWh/m²/day is the same as one hour of full midday sun (1,000 W/m²). Each block is one hour.
Gen 2 keeps vaccines cold on 43% less daily sun than our Gen 1 BFRV55 and PQS-prequalified fridges rated for 3.5.
A solar fridge has to get through the rainy season or winter, when sun is lowest. That is when a 3.5-rated system, like the Gen 1 BFRV55, can run short. Gen 2 has margin to spare.
Health posts whose cloudiest month falls below 3.5 should choose Gen 2: a standard kit, with no oversized custom array. Gen 1 suits sunny sites that need a battery-free fridge.
Our most compact solar vaccine refrigerator: 36 L of storage with a built-in lithium battery for quick, easy installation at remote clinics. Ships complete with solar kit.
Our largest solar vaccine refrigerator: 75 L of storage, an external lithium battery that can also run lights and charge phones, and a complete solar kit.
Off-grid vaccine refrigerator that also freezes PCM packs, so one unit covers the health post and outreach. Ships complete with solar kit, battery and two 4 L carriers.
50 L add-on freezer for a DCRV36 or DCRV75. Freezes water or PCM packs for outreach and runs from the refrigerator’s own solar power system.
160 L add-on freezer for the DCRV75. Freezes water or PCM packs for large outreach programs and runs from the refrigerator’s own solar power system.
Battery-free solar direct drive vaccine refrigerator. The compressor runs straight off the solar panels, and phase-change thermal storage keeps 55 L of vaccines cold overnight and through cloudy…
4 L vaccine carrier for outreach sessions. Six PCM packs keep vaccines cold for up to 48 hours at +21 °C, and packs frozen in a SunDanzer refrigerator need no preconditioning.
| Specification | DCRV36 | DCRV75 | DCRV36i | DCF50M | DCF160M | BFRV55 |
|---|---|---|---|---|---|---|
| Type | Vaccine storage · Gen 2 | Larger storage · Gen 2 | All-in-one · Gen 2 | 50 L add-on pack freezer | 160 L add-on pack freezer | Solar direct drive · Gen 1 |
| Gross vaccine storage | 36 L | 75 L | 27 L | — | — | 55 L |
| PCM pack storage | — | — | 9 L | 50 L | 160 L | — |
| PCM pack freezing | — | — | 2.4 kg / 24 h | 2.4 kg / 24 h | 2.4 kg / 24 h | — |
| Holdover at +43 °C | 81 h | 80 h | 81 h | 75–79 h | 76 h | — |
| Autonomy (low sun) | 136 h | 159 h | 136 h | 111–124 h | 118 h | — |
| Solar array (in kit) | 310 Wp | 310 Wp | 310 Wp | 310 Wp | 310 Wp | 400 Wp |
| Battery | LiFePO4 12 V 50 Ah | LiFePO4 12 V 50 Ah | LiFePO4 12 V 50 Ah | Shared LiFePO4 12 V 50 Ah | Shared LiFePO4 12 V 50 Ah | None |
| Ambient range | +5 °C to +43 °C | +5 °C to +43 °C | +5 °C to +43 °C | — | — | +5 °C to +43 °C |
| Freeze protection | Grade A | Grade A | Grade A | — | — | Grade A |
| Unit (L Ă— W Ă— H) | 680 Ă— 640 Ă— 780 mm | 860 Ă— 780 Ă— 970 mm | 680 Ă— 640 Ă— 780 mm | 680 Ă— 640 Ă— 780 mm | 860 Ă— 780 Ă— 970 mm | 860 Ă— 780 Ă— 970 mm |
| Weight | — | — | — | — | — | 113 kg |
Holdover = how long vaccines stay in range with no power at all, at +43 °C. Autonomy = how long they stay in range when sunlight drops below the 2.0 kWh/m²/day reference (rainy days), with the supplied solar array. Every system ships complete as a kit. Open a model for its full specifications.
Not sure? Send us your site list and we’ll size each one. Talk to our medical team →
Gen 2 needs about 50% less panel, and it mounts on a normal roof or ground rack. No east-west array or pole mount, so it costs less to ship and install and is less of a theft target.
A LiFePO4 battery and phase-change thermal storage work together, so cloudy stretches don’t put vaccines at risk.
Key components are easy to reach and replace in the field. A fault is a part swap, not a new refrigerator.
Each system arrives as a kit with its solar power system and installation parts, ready for local technicians.
2-year replacement-parts warranty. The LiFePO4 battery has a 7-year prorated warranty and is rated for at least 10 years and over 3,000 cycles.
About 1% spare parts ship with every solar order, so common parts are on hand from day one.
Installation manuals and user guides for health workers, with support from our team and regional partners, remotely and on site.
Tell us about your program and sites. We’ll reply with sizing, pricing and lead time.
