Power estimate
BasicCompares actual with predicted and theoretical output, with weather correction. Not a design simulator.
Solar software review
Cloud software to watch and study wind, solar and battery plants. It comes in three plans: Core, Pro and Elite.
Our quick verdict
Best for
Asset managers and O&M teams running large solar, wind and battery sites.
Not ideal for
Home or small business installers, and buyers who need public pricing.
Biggest strength
It shows where power is lost, down to each string of panels, and links it to money.
Biggest weakness
No price on the website, and we found no public API or security documents.
Top alternative: meteocontrol VCOM. Pick it for EU hosting, a public API and a built-in CMMS.
How much of each job we could confirm, and how deep it goes. Jobs that are not what this tool is for are left out.
6 verified3 company claims 2 not found How the score works
The Overview and Monitor modules show live KPIs (key numbers like output and uptime). You can look at the whole portfolio or one inverter. KPIs update every five minutes.
Analysis works out lost power from five-minute data, down to each string of panels. A waterfall chart shows the main cause of the loss.
Budgets compares output with plan. Revenues turns KPIs into money using market data and each project’s setup.
If an alarm stays on longer than the time you set, you get a notice. You can turn it into a ticket. Tickets use kanban boards, chat and templates. You can also create tickets in your repair team’s CMMS (maintenance work-order app).
The Logbook sorts events with an 80-class model from the IEC 61400-26 standard. The KPIs module then works out availability (how often the plant could run) with your own formulas. This helps you report against contracts.
Each feature shows what we found on DNV GPM Horizon’s own website, and how sure we are.
Compares actual with predicted and theoretical output, with weather correction. Not a design simulator.
Revenues and Budgets track money earned against plan. The page says it shows the real PPA (power sale deal) and contract availability. It does not offer loans.
We found no project tools for building plants.
A Horizon Storage module covers battery systems. We did not read its page.
Live KPIs, alarms and analysis from portfolio to inverter, with losses to string level.
Tickets with kanban boards, chat and templates help repair teams track work. Planning is in the Elite tier.
The company says you can create tickets in your repair team’s CMMS. It does not list named partners.
We found no public API docs.
Gemini uses AI to spot anomalies. For wind it uses vibration data. For solar it finds underperformance.
A mobile app is listed in the Elite tier.
Drag-and-drop reports and templates. Scheduled PDFs can be emailed to a list.
Not what DNV GPM Horizon is for, so not scored: Solar design, 3D modelling, Shade analysis, Proposals, CRM, Lead management, Permits and plan sets.
| Feature | What we found | Our notes | Source |
|---|---|---|---|
| Solar design | Not its job | GPM Horizon runs built plants. It does not design them. | Oct 2026 |
| 3D modelling | Not its job | No 3D design tools. | Oct 2026 |
| Shade analysis | Not its job | Shade studies are outside what it is for. | Oct 2026 |
| Power estimate | Basic | Compares actual with predicted and theoretical output, with weather correction. Not a design simulator. | Oct 2026 |
| Proposals | Not its job | Not a sales tool. | Oct 2026 |
| CRM | Not its job | Not a sales tool. | Oct 2026 |
| Lead management | Not its job | Lead tools are outside what it is for. | Oct 2026 |
| Permits and plan sets | Not its job | Permits are outside what it is for. | Oct 2026 |
| Financing | Basic | Revenues and Budgets track money earned against plan. The page says it shows the real PPA (power sale deal) and contract availability. It does not offer loans. | Oct 2026 |
| Project management | Not found | We found no project tools for building plants. | Oct 2026 |
| Battery design | Company claim | A Horizon Storage module covers battery systems. We did not read its page. | Oct 2026 |
| Monitoring | Advanced | Live KPIs, alarms and analysis from portfolio to inverter, with losses to string level. | Oct 2026 |
| Operations and repair (O&M) | Basic | Tickets with kanban boards, chat and templates help repair teams track work. Planning is in the Elite tier. | Oct 2026 |
| Integrations | Company claim | The company says you can create tickets in your repair team’s CMMS. It does not list named partners. | Oct 2026 |
| API | Not found | We found no public API docs. | Oct 2026 |
| AI and automation | Company claim | Gemini uses AI to spot anomalies. For wind it uses vibration data. For solar it finds underperformance. | Oct 2026 |
| Mobile | Basic | A mobile app is listed in the Elite tier. | Oct 2026 |
| Reporting | Advanced | Drag-and-drop reports and templates. Scheduled PDFs can be emailed to a list. | Oct 2026 |
| Type of business | Fit | Why |
|---|---|---|
| Home solar installers | Weak fit | We found nothing for home systems. |
| Business (commercial) installers | Partial fit | It can watch any plant, but the company says its expertise is very large plants. |
| Solar farm developers | Strong fit | The company says it is expert in running utility-scale (very large) power plants. |
| EPCs (design and build firms) | Partial fit | It helps after a plant is built, but it has no design or build tools. |
| Solar designers and engineers | Weak fit | No design tools. |
| Solar sales teams | Weak fit | No sales tools. |
| O&M and asset teams | Strong fit | Alarms, tickets, the logbook and planning all support repair teams. |
Solo installer
Weak fit
There is no public price, and it is built for many plants.
Small team
Partial fit
The Core tier gives just monitoring, alarms and data downloads.
Growing company
Strong fit
The tiers let you start small and upgrade.
Large company
Strong fit
It covers wind, solar and batteries for portfolios in many countries.
Starting price
Ask the company
Checked 6 October 2026
Ask the company
Ask the company
Ask the company
Ask DNV GPM Horizon for a price Prices change often. We never guess a price that is not on the website.
Learning curve
Medium
It runs in a web browser, and a free click-through tour lets you try it before a demo. The higher tiers add many modules, so expect training for analysts.
Training offered: Interactive product tour · Articles and downloads
We have not tested DNV GPM Horizon hands-on yet. This is based on what the maker offers and how the product is set up.
Project management
Other
| Capability | Status | What it does |
|---|---|---|
| AI design | Not its job | No design tools. |
| AI proposals | Not its job | No proposal tools. |
| AI sales assistant | Not its job | No sales tools. |
| AI lead qualification | Not its job | No lead tools. |
| Forecasting | Verified | The Forecast module turns weather forecasts into expected output and compares forecast providers. |
| Automation | Company claim | Gemini sends daily updates on solar issues found by its algorithms. |
Our assessment
Gemini’s AI is mostly for wind turbines, where experts check its results to cut false alarms. For solar, it is described as advanced analytics that finds underperformance and splits losses. That is useful, but it is not a chat assistant.
What you can do with it
Useful for
Only what the company publishes. “Could not read” means we could not open the page, not that the feature is missing.
Encryption
Not foundWe found no security page.
Single sign-on (SSO)
Not foundWe found no mention of SSO.
SOC 2
Not foundNot mentioned.
GDPR
Not foundThe site has a privacy policy, but we found no product GDPR statement.
User permissions
Not foundYou can assign tickets to another user. We found no details on user roles or permissions.
Audit logs
VerifiedThe Logbook keeps a record of all changes and can restore earlier versions.
Data hosting
Not foundHosting location not stated.
Backups
Not foundWe found no backup details.
The pages do not describe setup steps. Data is gathered from sensors up to portfolio level.
Each regional office lists a support contact, and most list a phone number. Hours are not stated.
Tools people switch to, and when each one makes more sense.
Evidence score 8.3/10
Pick it for EU hosting, a public API and a built-in CMMS.
Read the reviewEvidence score 8.1/10
Pick it for very large fleets wanting field service and invoicing too.
Read the reviewPick it for independent performance analytics on mixed hardware.
Evidence score 7.3/10
Pick it if you mainly want AI fault detection on top of your current monitoring.
Read the reviewSame company: GPM Plus, GPM SCADA, PPC and EMS. An older web tool from the same company for reporting, forecasting and maintenance.
We have not given any product a quality score yet. That needs at least eight checked user reviews. Instead, the evidence score shows how much we could confirm on the company’s own website.
Points for each feature
| Verified, advanced | 10 |
|---|---|
| Verified, basic | 8 |
| Company claim only | 6 to 7 |
| Not found or not offered | 0 |
| Could not read, or not its job | left out |
Jobs we score, equal weight
Each job is the average of its features. A job where we found none of its features is not this tool’s job, so it is left out. The overall score is the average of the jobs that apply, plus clear pricing. Read how we check facts · How we research · Editorial guidelines
See a mistake? Tell us and we will check it again. Fixes go in our corrections log.
No price is shown on the website. There are three tiers: Core, Pro and Elite. You must request a quote.
We found no free trial. There is a free interactive product tour, and it needs no sign-up. You can also request a demo.
Not really. The company says it is expert in very large power plants. There is no public price for small buyers.
No. It has tickets for repair work, not sales tools. Use a solar CRM for leads and sales.
The company lists a Horizon Storage module for battery systems (BESS). We did not read its details, so check them in a demo.
We found no public API docs. Data Studio lets you download data as CSV, XLS, PDF or PNG files.
GreenPowerMonitor makes it. It is a DNV company based in Barcelona, Spain.
meteocontrol VCOM, Power Factors Unity and 3E SynaptiQ cover similar ground. SmartHelio adds fault finding on top of the monitoring you already have.
Our final verdict
GPM Horizon suits asset managers of large wind, solar and battery portfolios. It is a good fit if you want deep loss analysis and contract KPIs in one cloud tool. Ask for a quote, since no price is public.
DNV GPM Horizon · Evidence 6.8/10 · Solar farm developers