Confidential · Sunified Group BV · Prepared for discussion with named partners · Not for onward distribution
Sunified
UNITY · AgriPV data mesh
Business case and steelman
v1.1 · October 2026

Universal field data mesh · AgriPV and greenhouse PV

One signed mesh for every device in the field.

Sunified UNITY: Universal Field Data Mesh for AgriPV and Greenhouse PV, v1.1

9.83 haDouble Barrel Phase 2, 79% of the project, gated by one ALC report
~CAD 26MCapex gated by that report, pro rata
3.7 dB-HzGNSS signal loss under an overhead orchard array (Fraunhofer ISE)
USD 2.25Platform fee per chip per year, existing UNITY model

01 · POSITION

Position

UNITY should be sold as the field’s single signed data mesh, not as a sensor. One chip design sits inside every node: soil probe, climate station, valve controller and panel junction box. Each node signs its own readings, relays its neighbours’ traffic over Wirepas Mesh, and acts as a fixed ranging anchor for robots and drones. Confidence: high on the measurement and finance case, medium on positioning, which depends on silicon still to be qualified.

The value is not the readings. Semios, Hortau and greenhouse climate computers already sell readings. The value is three things no incumbent combines: one radio fabric for every device in the field, attestations a lender or utility can rely on, and a positioning grid that works under panels where GNSS degrades. AgriPV and greenhouse PV need all three, because the asset is financed on energy and justified on crop.

03 · ARCHITECTURE

Architecture

One node design, one mesh, one ledger. The sensor element changes per node; the radio, the signing core and the firmware do not.

Every field device carries the same signed core; IP ends at the gatewayUNITY node: Wirepas SoC plus secure anchor, signs every reading at sourceSoil probemoisture, ECClimate nodeair T, RH, PARValve nodefertigationPanel J-boxV, I, tempMobile tagrobot, droneWirepas Mesh: Layer 2, multi-hop, self-healingNodes hold no IP address. Every fixed node doubles as a ranging anchor.Gateway (sink)IP terminates here; LTE or fibreTrust Enginesigned, append-only, verifiable time seriesposition fixesGrower and agronomistirrigation and dosing controlLender, utility, insurerattestations, evidence packsRobots and dronesposition and wayfinding
UNITY field mesh · 5 node types, 1 mesh, 3 consumers

Readings are signed on the node, hop across Wirepas Mesh to a gateway, and land in the Trust Engine. Robots and drones read position fixes directly off the fixed node grid.

Silicon. Wirepas runs only on Nordic, Silicon Labs and TI parts, and none of them holds a Common Criteria certificate. The near-term node is therefore the two-chip build already proven in UNITY v1: a Wirepas SoC (Silicon Labs EFR32MG24B class) for radio and mesh, plus an NXP SE05x secure element as the signing anchor at EAL6+. The fabless UNITY core is the route to one die.

Why no IP at the node. A Layer 2 mesh node exposes no network services. That is a documentable answer to CRA Annex I Part I point 2(j), which requires reduced attack surfaces, and to NIS2 supplier questionnaires. It also keeps node power low enough for a battery soil probe.

05 · POSITIONING

Hyper-location and wayfinding

The fixed node grid can double as a ranging anchor grid, and overhead PV is where that matters most. Fraunhofer ISE measured GNSS under the overhead orchard array at Kressbronn: signal strength fell 3.7 dB-Hz and horizontal error rose from 3.8 m to 5.3 m. The authors recommend RTK or SLAM (pv magazine, 29 Nov 2024). A solar-site mower holding plus or minus 5 cm with RTK in open sky lost position under panels and fell back to odometry (Xsens case study).

MethodAccuracyStatus Oct 2026Role in UNITY
Wirepas RSSI positioning3 to 10 m (VDMA sheet)Positioning Engine end of support, not in NMS (Wirepas docs)Zone-level asset and bin tracking only
Bluetooth 6.0 Channel Sounding (phase ranging plus round-trip time)Vendor “sub-metre”; lab dev kits show 10 to 80 cm scatter (Nordic DevZone)Shipping on Silicon Labs xG24 (QFN, 40 MHz crystal only) and Nordic nRF54L15 (Silicon Labs docs)Default anchor grid. Any robot or drone radio that implements Channel Sounding can range without a proprietary receiver
UWB two-way ranging (802.15.4z, FiRa)Under 10 cm, vendor figure (Qorvo DW3000)Mature, needs a companion chip per nodeOption for centimetre guidance at row ends and docking points
RTK-GNSSPlus or minus 5 cm in open skyDegrades under overhead PV and glassRemains primary outside the array

Design call. The xG24 is both a Wirepas platform and the Silicon Labs Channel Sounding reference chip, so one-chip Wirepas plus ranging is plausible. Wirepas, or its reseller Siemens, has published no support for sharing radio time with Channel Sounding, so it is a vendor conversation, not an off-the-shelf feature. The low-risk build puts a second ranging radio on panel-powered junction-box nodes only. They have the energy budget and sit on a surveyed grid. Battery soil probes stay pure sensors.

Time-domain services. Two-way ranging needs no shared clock, which suits sleepy battery anchors. TDoA would need nanosecond anchor sync that a low-energy mesh cannot give. Millisecond timestamps for signed records are a separate and much easier service, and the mesh can provide them.

Who uses it. Vineyard autonomy is moving off GNSS-only guidance. Naio stopped selling and supporting its RTK-guided Jo and Orio robots on 15 June 2026 (Naio). FarmX sells a vision-based GPS-free orchard tractor kit. A standards-based anchor grid is the one positioning layer any robot or drone vendor that adopts Channel Sounding can use without a proprietary receiver.

07 · STEELMAN

Steelman

The strongest case: regulators and financiers now write measurement conditions into AgriPV approvals, and published results disagree so widely that only independent, signed, site-level evidence can settle them. A single mesh that also carries energy and positioning is the cheapest way to produce that evidence.

  1. Measurement is now a permit condition, not a nice-to-have. BC’s Agricultural Land Commission approved Double Barrel Phase 1 on condition that a grape quantity and quality report is filed before Phase 2 can proceed1. DIN SPEC 91434 makes documentation and operational monitoring of the agricultural main use part of the standard2. SolarPower Europe’s 18-country policy map finds France requires Agri-PV to keep at least 90% of agricultural yield and Germany 66%. France makes projects using non-proven technologies monitor yields against an adjacent control zone, and Italy’s “advanced agrivoltaic” status requires a monitoring system3. Barnard’s Evidence Book turns the same demand into five denominators4. Each one is a recurring, site-specific measurement obligation.
  2. The published numbers disagree, and that spread is the market. Voltiris reports +9% class-I peppers in the Delphy trial, but +1.5% at Meier Gemuse, its only hectare-scale commercial site5. Its strawberry turnover figure is +4% on its own site and +9% in its white paper6. Puglia vines under panels gave 277% more grapes in one season, while cool-climate Veneto trials showed yield and quality falls7. Sun’Agri reports 20 to 60% yield gains in the Southern Rhone8. A lender cannot price a range that wide. Signed, site-level, reference-zone data narrows it.
  3. One fabric costs less than five silos. Wirepas routes about 100 m per hop, takes up to 14 nodes per router, reaches 2,745 nodes in three hops, and runs non-router nodes at 12 to 15 microamps9. It already carries 702,046 meters across Himalayan valleys where cellular is thin, and over 12 million in India10. On an AgriPV site, the panel junction boxes provide a dense, powered router backbone at no extra infrastructure cost, provided each junction-box node carries a battery or supercap sized for overnight low-energy routing, because frost is a night event. The REGACE pilot needed three separate Modbus buses to cover the same three domains on 180 m211.
  4. Trust is built in, not bolted on. Every reading is signed under a hardware identity at the node. The node has no IP address, which is a documentable answer to CRA Annex I Part I point 2(j) on reduced attack surface12. Incumbent sensor platforms produce readings. UNITY produces attestations a third party can verify. The Double Barrel team’s own assessment names data interoperability as its primary technical risk, because no integrated precision agriculture data system exists23.
  5. The grid solves positioning exactly where GNSS fails. Fraunhofer ISE measured a 3.7 dB-Hz signal loss and 39% worse horizontal error under an overhead orchard array13. RTK-guided vineyard robots are leaving the market14. Bluetooth 6.0 Channel Sounding is a published standard that any robot or drone radio implementing it can range against, with shipping silicon from Silicon Labs (xG24) and Nordic (nRF54L15)15.
  6. The asset is financed on energy and justified on crop, and only one data system sees both. Voltiris prices about USD 20k per hectare a year of agronomic value next to USD 30k of energy, and no meter reads the first number16. Its utility-owned site puts that exposure on the utility17. BC Hydro’s Call for Power settles hourly with time-of-delivery factors of about 19% to 134%18, and new BC Hydro self-generators are paid 10 cents/kWh for surplus from 1 July 202619. Oliver is FortisBC territory, whose terms are not yet confirmed. Time-matched, signed energy data is worth more under both.
  7. Okanagan climate stress makes the need acute. The January 2024 freeze cut Okanagan insured wine-grape output from about 14,184 tons in 2023 to about 808 tons in 202420. The valley was at Drought Level 3 of 5 in September 202521. Dynamic Agri-PV over vines has cut water demand by 12% to 34% in European trials22. A winery that has lost two crops needs measured proof that the panels protect the vines.

Notes

  1. Penticton Herald, ALC approval of Double Barrel agrivoltaics: pentictonherald.ca; Penticton Western News, 24 Jan 2026: pentictonwesternnews.com ↩
  2. pv magazine, 27 Apr 2021, DIN SPEC 91434: pv-magazine.com ↩
  3. SolarPower Europe, Agrisolar Policy Map, 21 Oct 2025, technical requirements section (Dropbox: Sunified/SolarPower Europe/Agrisolar_Policy_Map_Final.pdf) ↩
  4. Michael Barnard, TFIE Agrivoltaics Evidence Book v1.0, 24 Jun 2026, the decision workbook (pathway scorecard and evidence notes) published with his TFIE Strategy Briefing “Agrivoltaics Works Where Shade Does Farm Work”: briefing.tfie.io/p/agrivoltaics-shade-farm-work ↩
  5. Vertical Farm Daily, Voltiris at CEAIF 2026: verticalfarmdaily.com; Meier Gemuse result from the voltiris.com project page (gBrain companies/meier-gemuse) ↩
  6. voltiris.com Proefcentrum Hoogstraten page against the Voltiris and Harvestis white paper (gBrain concepts/voltiris-harvestis-strawberry-trial-2025) ↩
  7. Economic Times, 20 Aug 2026, Puglia grapevines under solar: economictimes.com ↩
  8. Wine Spectator, 4 Feb 2025, Sun’Agri vineyard results: winespectator.com ↩
  9. Wirepas Mesh concepts, developer portal: developer.wirepas.com; VDMA technology sheet, Nov 2025: vdma.eu ↩
  10. IoT Business News, 20 Oct 2026: iotbusinessnews.com ↩
  11. Bovesecchi et al., Journal of Building Engineering 129 (2026) 116854: doi.org/10.1016/j.jobe.2026.116854 ↩
  12. gBrain concepts/unity-silicon-trilemma-radio-mesh-assurance, 17 Aug 2026, citing Comm. Impl. Reg. (EU) 2025/2392 and CRA Annex I ↩
  13. pv magazine, 29 Nov 2024, Fraunhofer ISE Kressbronn GNSS study: pv-magazine.com ↩
  14. Naio Technologies, Jo robot page: naio-technologies.com ↩
  15. Bluetooth SIG, Channel Sounding technical overview v1.0: bluetooth.com ↩
  16. Vertical Farm Daily, as note 5 ↩
  17. voltiris.com Eschbach Gemusebau project page (gBrain companies/eschbach-gemusebau) ↩
  18. BC Hydro 2025 Call for Power proponent information session, May and June 2025, as cited in the Sunified Executive Summary for Okanagan Hills Winery Group and ITEL (Dropbox: Sunified/Pitch - WIP) ↩
  19. BCUC decision, 24 Mar 2026: streetinsider.com; CleanTechnica, 7 Jul 2026: cleantechnica.com ↩
  20. BC Ministry of Agriculture, 2025 Grape Acreage and Production Report: gov.bc.ca ↩
  21. Global News, 15 Sep 2025: globalnews.ca ↩
  22. SolarPower Europe, Agri-PV: How solar enables the clean energy transition in rural areas, briefing paper, Sep 2020 (Dropbox: Sunified/AGRI-PV SolarPower_Europe.pdf) ↩
  23. Randy McGuire, Strategic Technology Assessment: Agrivoltaics and Biochar for BC Wine Country and Canadian Agriculture, risk assessment section, citing Delphi Group, BC Precision Agriculture Technologies for Nutrient Management: Google Doc; delphi.ca ↩

09 · DOUBLE BARREL

Use case: Double Barrel Vineyards, Oliver BC

The pitch is not “add sensors to a vineyard”. It is “produce the report that unlocks Phase 2”. In January 2026 the ALC approved agrivoltaics over 2.67 ha of vines at Double Barrel Vineyards, part of Jesse Gill’s Okanagan Hills Winery Group. Phase 2, a further 9.83 ha, may proceed only after Phase 1 is complete and a report on grape quantity and quality is filed (Penticton Herald). That is 79% of the planned 12.5 ha waiting on one evidence document. The press calls it the first commercial-scale vineyard agrivoltaic system in North America, at a reported CAD 33M.

The site. Adjustable panels on mobile racks close automatically into a table-top cover, and thermal curtains drop along the row sides for sub-freezing nights. Irrigation is integrated, and there are attachments for weeding, pruning and picking (Penticton Western News). Gill lost his crop to winter two years running. Partners named in the press are Agrivoltaics Canada (installer), SFU, Western University and Claude Mindorff. On the 15 July 2026 call, Mindorff and Guy Price (Hunter West) agreed to use the project as the UNITY proof of concept, with Mindorff to draft an MOU. The project’s own platform overview, forwarded by Scott Lancaster, names AgriScout drones, the Mule ground robot and AgriCore analytics.

What the Double Barrel platform already claims. Randy McGuire’s Strategic Technology Assessment for Okanagan Hills Winery Group describes four layers: AgriScout AI drones, the Mule autonomous ground robot, AgriCore analytics, and smart solar. Drawing on the project’s own overview document, it claims the Mule replaces a 70 HP utility tractor for non-heavy tasks, saves 650 labour hours per 10 acres a year, and cuts chemical inputs 20% to 30% through precision targeting. It recommends a 10-winery Okanagan pilot, scaling to 50 and then 200 wineries, and calls for performance benchmarking protocols for yield, quality and sustainability.

UNITY slots under that stack, not beside it. McGuire names data interoperability as the primary technical risk, because no integrated system yet exists for precision agriculture data management, and answers it with AgriCore’s API. AgriCore is the analytics layer. UNITY is the signed field layer beneath it: one mesh that carries every sensor reading, gives the Mule and AgriScout their position under the closed canopy, and turns the 650-hour and 20% to 30% claims into logged, attributable numbers. Those benchmarking protocols are the ALC evidence pack, written once and reused at every winery in the rollout.

What each party needs from the mesh

PartyQuestion they must answerWhat UNITY records
ALCDid Phase 1 keep grape quantity and quality?Signed yield per row, Brix, pH, titratable acidity at harvest, panel rows against open reference rows, with weather covariates
Okanagan Hills Winery GroupDo the panels and curtains save the crop in freeze, heat and smoke?Canopy and bud-zone temperature, curtain and panel position logs, frost events, leaf temperature
Grower operationsHow much water and fertiliser, when?Root-zone moisture and EC, metered irrigation, fertigation dosing, optional DOTS nitrate
Lender and EPCIs the plant generating and available?Panel-level V, I, temperature every ~30 s; mover availability
Offtaker (FortisBC territory, PowerX, data centre)When was each MWh produced?Hourly and sub-hourly time-matched energy for EnergyTag-style certificates
Mule and AgriScoutWhere am I under a closed canopy?Ranging fixes from the junction-box anchor grid

Why the closed canopy matters for positioning. When the panels close into a table-top cover and the curtains drop, the rows become a covered tunnel. That is the worst case for GNSS and the best case for a fixed anchor grid on the racking.

One line to confirm: the 15 July meeting notes place Double Barrel in Summerland at 2.5 MW, while the press and the Sunified 5-pager place it in rural Oliver.

11 · NEXT STEPS

Next steps

  • Get the MOU draft from Claude Mindorff and confirm the Phase 1 build date and site (Oliver per press, Summerland per the July notes)
  • Confirm open reference rows of the same variety and age next to Phase 1
  • Ask Wirepas two questions: radio time for Channel Sounding on xG24, and the per-unit licence price
  • Price the node: EFR32MG24B in QFN with 40 MHz crystal plus NXP SE05x, with and without a ranging companion
  • Reopen DOTS (Rafi Levi): current status and a nitrate head on a UNITY fertigation node
  • Offer SFU CERG (Omri Haiven) co-design of the ALC report protocol, so the evidence format is agreed before the season
  • Take the same evidence pack to Voltiris through Kaz Vermeer, with Elektra Baselland as the buyer

Thirty minutes to see if it fits.

We are looking for agrivoltaic and greenhouse PV sites where one season of signed evidence unlocks the next phase, starting with Double Barrel Vineyards. If a build, an approval or a financing round is coming up in the next twelve months, that is the conversation worth having.

One 30-minute Zoom covers both the fit check and the technical walk-through: the node, the mesh, the reference-row protocol and where your build window sits.

Prefer to write first? LG@sunified.com · or book at Calendly.com/lgv

13 · SOURCES

Sources

Industry articles on AgriPV

  • Michael Barnard, TFIE Strategy Briefing, Agrivoltaics Works Where Shade Does Farm Work, with the TFIE Agrivoltaics Evidence Book v1.0, 24 Jun 2026: briefing.tfie.io
  • Bovesecchi et al., Integrated microclimate, irrigation and PV monitoring for a pilot agrivoltaic greenhouse (REGACE), Journal of Building Engineering, July 2026: doi.org
  • pv magazine, Overhead agrivoltaics could disrupt GNSS used for precision agriculture (Fraunhofer ISE), 29 Nov 2024: pv-magazine.com
  • pv magazine, German organizations outline new standards for agrivoltaics (DIN SPEC 91434), 27 Apr 2021: pv-magazine.com
  • Wine Spectator, Solar panels in vineyards (Sun’Agri), 4 Feb 2025: winespectator.com
  • Economic Times, Puglia grapevines beneath solar panels, 20 Aug 2026: economictimes.com
  • WSU News, Low-hanging fruit: blending solar power into farms, 4 Nov 2025: research.wsu.edu
  • Penticton Herald, Double Barrel agrivoltaics ALC approval: pentictonherald.ca
  • Penticton Western News, Oliver winery’s solar project clears another hurdle, 24 Jan 2026: pentictonwesternnews.com
  • AgFunderNews, Voltiris spectral filtering, 3 Dec 2024: agfundernews.com
  • Vertical Farm Daily, Voltiris zero grower investment model, 29 May 2026: verticalfarmdaily.com
  • Fraunhofer ISE, Agrivoltaics: ise.fraunhofer.de
  • SFU CERG agrivoltaics programme: sfu.ca
  • IVES Open Science, vineyard agrivoltaics papers: ives-openscience.eu
  • Farm Equipment, DOTS real-time soil nitrate monitoring, 24 May 2023: farm-equipment.com

SolarPower Europe reports (Dropbox, Sunified/SolarPower Europe)

  • Agrisolar Policy Map, 21 Oct 2025: Agri-PV definitions, permitting, support schemes and monitoring rules across 18 EU member states. France requires 90% yield retention and control-zone monitoring for non-proven technologies; Germany 66%; Italy 70% of land kept under cultivation and a monitoring system for “advanced agrivoltaic”
  • Agri-PV: How solar enables the clean energy transition in rural areas, briefing paper, Sep 2020: dynamic Agri-PV over vines cut water demand 12% to 34%; calls for digitalised systems that track irradiation and regulate microclimate
  • Agrisolar Handbook (2024), cited as a design benchmark in the Sunified Executive Summary for Okanagan Hills Winery Group
  • Global Solar Market Outlook 2026 and EU Solar Market Outlook 2025 to 2030, for market sizing context

Okanagan Hills Winery Group research

Mesh, ranging and market

Internal: Sunified UNITY AgriPV Strongman Thesis (5 Jul 2026); Executive Summary for Okanagan Hills Winery Group and ITEL; 15 July 2026 Hunter West call notes; gBrain concepts/unity-silicon-trilemma-radio-mesh-assurance; Voltiris gBrain pages; DOTS email thread, Sep 2022 to May 2023.