SolarAssistant
SolarAssistant provides Raspberry Pi-based real-time solar monitoring and control software that supports 15+ inverter brands, serving residential solar homeowners and solar installers across 20+ language markets via perpetual licensing and Pro subscription add-ons.
- Company typePrivate
- Founded-
- HeadquartersWilmington, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What SolarAssistant does
SolarAssistant develops Raspberry Pi-based solar monitoring and control software for the residential and small-commercial solar market. The company's Core Software product ingests real-time telemetry from 15+ inverter brands and multiple BMS protocols via USB, RS232, RS485, WiFi, and network connections, displaying metrics with up-to-2-second latency and enabling remote adjustment of inverter settings. Data is stored locally on the customer's own Raspberry Pi (default 16GB SD card, 10+ years of history), with optional remote access through Home Assistant integration, MQTT, WebSocket, REST, and Cloud APIs exposed in 2026. The platform is localized to 20+ languages and ships with on-device Python-based scheduling and time-of-use optimization tied to European electricity-price providers.
The company monetizes through a hybrid model: perpetual Core Software licenses with lifetime updates, an optional Pro subscription tier (features released during an active Pro period are permanently retained), pre-configured Raspberry Pi hardware bundles, and accessories sold via its own e-commerce site; no monthly fees are charged for remote access. Go-to-market is product-led: community-generated YouTube reviews by independent installers and a multilingual self-service documentation site are the primary customer-acquisition surfaces, supplemented by dedicated migration pages targeting WatchPower and ICC/ICM/SMH users. Operating geographies include North America (Delaware-incorporated entity), EMEA, and APAC/LATAM, with regional proxy servers deployed in South America and Asia.
The company's primary customer segments are professional solar installers requiring multi-site management and remote-setting adjustment capability, and residential solar homeowners seeking real-time visibility, battery optimization, and local data ownership without recurring fees. A secondary segment of DIY and home-automation integrators uses MQTT/WebSocket/REST APIs to connect SolarAssistant into broader Home Assistant and Node-RED deployments. The operating footprint is small (1–10 employees), privately held (Solar Assistant Software Corp., Delaware), and self-funded, with no disclosed external funding rounds or enterprise contracts.
SolarAssistant firmographics
Firmographics- Name
- SolarAssistant
- Legal name
- Solar Assistant Software Corp.
- Website
- https://solar-assistant.io
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- SolarAssistant provides Raspberry Pi-based real-time solar monitoring and control software that supports 15+ inverter brands, serving residential solar homeowners and solar installers across 20+ language markets via perpetual licensing and Pro subscription add-ons.
- Ownership category
- akta.pro rank
SolarAssistant industry classification
Industry- Product category
- Solar Monitoring and Energy Management Software
- NAICS
- Computer Systems Design and Related Services (54151)
- SIC
- Services-Computer Programming Services (7371)
- akta.pro primary industry
- Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring) (EUAMABAH)
Keywords
Where SolarAssistant is headquartered
LocationHeadquarters
- HQ city
- Wilmington
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
SolarAssistant business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales, Supply Chain
Revenue model
- Software license (Core Software): Base software license for SolarAssistant Core Software with perpetual license and lifetime access to Core Software updates at no additional cost.
- SolarAssistant Pro: Optional Pro tier with advanced features. Pro features released during a license's active Pro period remain permanently available. Access to features released after Pro period ends requires purchasing additional Pro.
- Hardware devices: Pre-configured Raspberry Pi devices with SolarAssistant software. Cables and accessories sold in online shop.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Core Software - perpetual license with free updates |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
SolarAssistant product offering
Product offeringCore offering
SolarAssistant develops and sells a Raspberry Pi-based solar monitoring and inverter control software platform that provides real-time metrics up to 2 seconds, remote inverter settings adjustment, role-based multi-site access, and 10+ years of local historical data storage. The company also sells pre-configured Raspberry Pi hardware running its software along with cables and accessories. An optional Pro tier adds advanced features on top of the perpetual-license core software, and the platform integrates with Home Assistant, Node-RED, and electricity pricing providers via MQTT, REST, WebSocket, and Cloud APIs.
Product overview
SolarAssistant is a modern, real-time solar monitoring and control platform built for Raspberry Pi. The Core Software provides live metrics up to 2 seconds, remote inverter adjustment, and multi-site management via web and mobile apps. SolarAssistant Pro is an optional premium add-on layer offering advanced features. The product supports MQTT, REST, WebSocket, and Cloud APIs for integration, with native Home Assistant integration. Inverter compatibility spans major brands including Axpert/Voltronic, Growatt, Deye, SunSynk, Sol-Ark, MPP Solar, EG4, MUST, SRNE, Luxpower, and many others. Battery support includes Pylontech, Daly, JK BMS, EG4, Dyness, Seplos, and numerous others. The platform stores data locally (10+ years on 16GB SD) with no mandatory cloud dependency, though remote access and APIs are available. Software updates are free for Core Software with perpetual licenses.
Differentiator
Problem solved
Functional benefit
Brands
- SolarAssistant Pro: Optional additional layer of premium features that can be added to the core SolarAssistant software license.
Products and services
- SolarAssistant Core Software Real-time solar monitoring and inverter control software that runs on Raspberry Pi, providing live metrics up to 2 seconds, remote inverter settings adjustment, multi-site access via single login, and local data storage with 10+ years of historical data capacity. Sold under a perpetual license with lifetime access to Core Software updates included at no additional cost.
- SolarAssistant Pro Optional subscription-style add-on tier offering advanced features on top of the Core Software. Pro features released during an active Pro period remain permanently available to the licensee, while access to features released after the Pro period ends requires purchasing additional Pro.
- Pre-configured SolarAssistant Raspberry Pi Device Raspberry Pi hardware pre-configured with SolarAssistant Core Software, offered through the SolarAssistant online shop so customers can purchase a plug-and-play monitoring device rather than installing the software on their own Raspberry Pi.
- SolarAssistant Cables and Accessories Cables, adapters and accessories sold in the SolarAssistant online shop to support inverter connectivity (USB, RS232, RS485, etc.) to SolarAssistant Raspberry Pi devices.
- SolarAssistant Mobile App (Android) Android application for remote monitoring and administration of solar sites via the SolarAssistant platform, providing functionality equivalent to the web interface for end users and installers.
- SolarAssistant Mobile App (iPhone) iPhone application for remote monitoring and administration of solar sites via the SolarAssistant platform, providing functionality equivalent to the web interface for end users and installers.
- SolarAssistant REST API RESTful API for querying device data, energy totals, inverter readings, battery metrics, grid electricity prices, weather data, and system information from SolarAssistant devices, accessible via authorized API tokens.
- SolarAssistant WebSocket API Real-time WebSocket API for bidirectional communication with SolarAssistant devices, enabling live data streaming and instant metric updates for energy totals, device metrics and live inverter/battery readings.
- SolarAssistant Cloud API Cloud-based API that enables remote access to SolarAssistant devices without requiring direct network connectivity to the device.
- WatchPower Migration Service Migration offering for existing WatchPower and SolarPower users to switch to SolarAssistant, supporting Voltronic inverters via Micro USB, USB Type B, or RS232 ports.
- ICC/ICM/SMH Migration Service Migration service for users of ICC, ICM, or SMH monitoring tools to switch to SolarAssistant, utilizing their existing Raspberry Pi and monitoring cables with no conversion fees.
Quantifiable outcome
- Metrics live up to 2 seconds
- +1 more outcomes
Companies that use SolarAssistant
Customer profileNamed customers10 records
Segments3 records
Ideal customer profiles3 records
SolarAssistant technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration11 records
Feature10 records
SolarAssistant partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Home AssistantcoreOfficial integration with automatic discovery for Home Assistant. Integration available on GitHub (ha_solar_assistant). Enables Home Assistant energy module integration and MQTT discovery with improved icons, units, and online/offline availability.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
SolarAssistant competitors and assessment
Company assessmentEmerging players
- Sense: AI-driven home energy monitoring device that provides appliance-level disaggregation plus solar and battery monitoring in a single consumer product. Emerging-player peer in residential solar/energy monitoring with overlapping homeowner persona, differentiated by AI appliance detection rather than inverter-protocol depth.
Direct peers
- OpenEnergyMonitor: Open-source energy monitoring platform using local hardware (emonPi/emonTx, often Raspberry Pi-based) for real-time solar, battery, and consumption monitoring with open data and API access. Highly comparable product philosophy to SolarAssistant: open-source, local-first, privacy-focused, API-driven monitoring with active DIY/technical community.
- SolarMan: Cloud-based monitoring platform from Deye/INVT used by installers and homeowners to monitor Deye and other supported inverters in real time via app and web. Direct peer because it competes for the same Deye-installed monitoring user, which is one of SolarAssistant's largest supported bases.
- WatchPower: OEM monitoring software shipped with Voltronic/Axpert inverters — SolarAssistant explicitly offers a WatchPower migration service, positioning the two as direct substitutes for the same hardware installed base. Direct head-to-head competitor for monitoring Voltronic/Axpert-family inverters.
- Victron Energy (VRM): Victron Energy's VRM (Victron Remote Management) portal provides real-time monitoring and control of Victron inverter/charger systems, including SolarAssistant-relevant features like remote settings adjustment, historical data, and multi-site views. Comparable because both target the same residential/off-grid solar+storage installer and homeowner segments with monitoring and remote-control workflows, although Victron is vertically integrated with its own hardware.
Broad incumbents
- Enphase Enlighten: Enphase's flagship monitoring and analytics platform for its microinverter and IQ Battery systems, with installer fleet management and homeowner apps. A larger established incumbent that dominates the North American residential solar monitoring category, although currently not supported by SolarAssistant.
- SolarEdge Monitoring: SolarEdge's cloud-based monitoring platform bundled with its inverter and optimizer products, offering module-level visibility, fleet management, and energy hub features for backup batteries. Broad incumbent competitor in residential monitoring; SolarAssistant's REST API and inverter support is targeting adjacent hardware but the SolarEdge experience remains the OEM default.
- SMA Sunny Portal: SMA's web-based monitoring portal for residential and commercial PV systems using SMA inverters, providing visualization, performance ratio, and fleet management. Broad incumbent peer in the same solar monitoring category, currently outside SolarAssistant's supported inverter list.
- Growatt ShineServer / ShinePhone: Growatt's bundled monitoring platform for its own inverters, with cloud portal, mobile app, and remote settings. Broad incumbent peer that competes head-on for Growatt monitoring — a brand SolarAssistant has heavily invested in supporting — but is part of Growatt's broader hardware/software portfolio rather than a standalone product.
Others
- Home Assistant: Open-source home automation platform that is SolarAssistant's primary integration partner (via official auto-discovery integration) and an adjacent enabling ecosystem for energy management. Not a direct competitor but a strategic ecosystem peer: Home Assistant's Energy Dashboard could in principle incorporate solar monitoring features that overlap with SolarAssistant's core scope.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
SolarAssistant social profiles
Digital presenceSolarAssistant financial estimates
Financial estimateRevenue estimate
Valuation estimate
SolarAssistant leadership team
Management profileNumber of profiles
SolarAssistant funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SolarAssistant M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SolarAssistant
What does SolarAssistant do?
SolarAssistant develops and sells a Raspberry Pi-based solar monitoring and inverter control software platform that provides real-time metrics up to 2 seconds, remote inverter settings adjustment, role-based multi-site access, and 10+ years of local historical data storage. The company also sells pre-configured Raspberry Pi hardware running its software along with cables and accessories. An optional Pro tier adds advanced features on top of the perpetual-license core software, and the platform integrates with Home Assistant, Node-RED, and electricity pricing providers via MQTT, REST, WebSocket, and Cloud APIs.
Is SolarAssistant a public or private company?
SolarAssistant is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SolarAssistant founded?
SolarAssistant was founded in -1. It employs 1 to 10 people.
Where is SolarAssistant based?
SolarAssistant is headquartered in Wilmington, United States, in the North America region.
How does SolarAssistant make money?
Three revenue lines are on record. Software license (Core Software) is the primary driver. The others are solarAssistant Pro and hardware devices.
Who are SolarAssistant's main competitors?
Sense is listed as an emerging player. Direct peers are OpenEnergyMonitor, SolarMan, WatchPower and Victron Energy (VRM). Broad incumbents are Enphase Enlighten, SolarEdge Monitoring, SMA Sunny Portal and Growatt ShineServer / ShinePhone. Home Assistant is listed as an others.
Does SolarAssistant have an API?
Yes. SolarAssistant offers multiple APIs for integration: REST API, WebSocket API, and Cloud API for remote access via cloud. A command-line tool (sacli) provides easy access to REST and WebSocket APIs. APIs expose energy totals, device system metrics, grid electricity prices, weather data, and inverter/battery readings. Access requires an authorized API token through their organization program. MQTT is also supported for real-time data streaming with MQTT5 support on newer 64-bit devices. Developer documentation is at solar-assistant.io/help/integration/rest-api.
What industry is SolarAssistant in?
SolarAssistant's product category is Solar Monitoring and Energy Management Software. Its primary akta.pro industry code is EUAMABAH, Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring). Its NAICS code is 54151 and its SIC code is 7371.