Solar monitoring and control, built for the net-billing era.
Since January 2026, every new solar system in Cyprus connects under net billing — exports earn the wholesale rate while imports cost retail. What a system earns now depends on how much of its own energy it uses. Helios gives installers the platform to monitor and manage every system they install — and the on-site controller that makes batteries work harder.
Helios in 78 seconds.
A quick tour of the platform: fleet monitoring, health checks, the customer portal and the built-in CRM.
See every system. Yours and your customers’.
Your fleet at a glance.
Every installation, its live status, what needs attention. Offline systems are detected automatically — three independent layers of detection — and you’re alerted by email and on your dashboard.
Every system in depth.
Production, consumption, imports and exports; per-phase and per-MPPT diagnostics down to fault codes and temperatures.
Your customers see it too.
Each customer gets their own portal — live energy flow from panels to home, grid and battery, savings in euros computed against their actual tariff, reports they can export.
Your fleet at a glance.
Every installation, its live status, what needs attention. Offline systems are detected automatically — three independent layers of detection — and you’re alerted by email and on your dashboard.
Every system in depth.
Production, consumption, imports and exports; per-phase and per-MPPT diagnostics down to fault codes and temperatures.
Your customers see it too.
Each customer gets their own portal — live energy flow from panels to home, grid and battery, savings in euros computed against their actual tariff, reports they can export.
Works with the inverters your customers already own.
Verified in the field
Integration-ready — validated with your fleet on connection
Cloud polling every 5 minutes — or near-real-time (~30 s) with an optional Helios edge gateway on site, independent of vendor API limits.
Numbers your customers can trust.
Savings, from real tariffs.
Every euro figure is computed against the customer’s actual tariff — every EAC component, as configurable data. When rates change, the numbers follow.
Net billing, settled properly.
Monthly virtual-net-billing credit ledger with the 36-month expiry rule — computed, not guessed.
Weather-honest expectations.
Expected-vs-actual production corrected for actual weather at the site, so a cloudy week never looks like a broken panel.
Reports that leave the platform.
Energy, savings, and diagnostics — CSV and PDF, in English or Greek.
Six automated health checks, every 15 minutes.
Helios runs six performance detectors over every system’s telemetry, around the clock.
Three catch acute problems from day one:
- Grid voltage outside the EAC grid-code band (207–253 V), sustained
- The same inverter fault code recurring again and again
- One panel string under-producing against its siblings — shading, soiling, damage
Three learn each system’s own baseline and watch for slow decay:
- Inverter conversion efficiency drifting below its 30-day baseline
- Battery charge behaviour degrading against a 12-week baseline — an early-warning trend, so you can plan the conversation before it becomes a complaint
- The monitoring connection itself deteriorating
Every alert carries the measured values, a plain-language cause, and a repair suggestion — in English and Greek. Alerts clear themselves when the condition resolves. Works across all sources: inverter cloud APIs, Helios edge gateways, and Helios EMS controllers.
Control, where the hardware allows it.
Monitoring works everywhere. On sites fitted with a Helios smart edge gateway, installers can also curtail power, switch inverters, and manage battery modes and schedules — every command confirmed, audited, and acknowledged by the device. Control is validated brand-by-brand, starting with Huawei.
From first lead to signed proposal to service call.
Customer email, next to the customer it is about.
Helios has a shared inbox for your team. Connect the Microsoft 365 mailbox you already use with customers — or, with any other provider, forward or BCC mail to your organisation’s Helios address — and incoming messages are filed against the matching lead or customer. A reply about a quote lands on the customer it was for, next to their system’s data, and an unmatched thread can be linked by hand. Nobody has to copy anything across.
Gmail: waiting for Google’s review. A Gmail connection is built and is offered once Google has verified the Helios app. It asks Google for read access to your mailbox and nothing else — it cannot send, delete or change anything in your Gmail account. No mailbox is connected unless a member of your team connects their own, and any of them can pause or disconnect it from Settings at any time. Disconnecting revokes Helios’s access with Google immediately.
Used for the inbox, and nothing else. Messages are matched to your existing records and shown in Helios. Access tokens are encrypted at rest. We do not sell mailbox data, use it for advertising, or use it to train AI models. If you switch on the AI reply-drafts add-on and ask for a draft, the messages in that one thread are sent — with personal details scrubbed first — to Anthropic’s API to generate the suggestion, and to nowhere else.
Helios sends its own mail. Proposals, invoices and system alerts go out through the platform’s own email service, never through your mailbox.
AI that saves your team time. Never AI that drives a battery.
Each AI feature is an add-on an account admin switches on in Settings. It works from your own records and meter data, it acts as the person who asked and with their access, and anything written for a customer waits in a review queue until someone on your team uses it.
Ask your own data.
A data assistant answers plain-language questions, in English or Greek, from live queries over your customers, leads, invoices, systems and energy history — and shows what each answer rests on.
Find the battery customers.
The battery opportunity radar ranks existing customers by what their own meter data says a battery would save, and drafts the pitch for you to review. The savings are computed, never guessed.
Less writing.
Reply drafts in the inbox, follow-up suggestions when a lead’s follow-up is overdue, “catch me up” briefings on a customer, a morning fleet briefing and an annual energy report per customer.
Bills, read and checked.
Upload an EAC bill and Helios reads it. Bill audit compares what was billed with what the meter recorded, and explains where the two part ways — for your team, not sent to the customer.
Features have no price of their own: they draw on a monthly AI allowance. Every organisation gets a small monthly allowance at no charge, and capacity packages add more — see AI pricing. The models are Anthropic’s Claude, and we do not use your data to train AI models.
Your data, wired into the rest of your business.
Installer Pro includes a documented REST API and webhooks. Create and update leads, customers, companies and tasks; read proposals, invoices, systems and their daily energy; and receive a signed webhook the moment a lead converts, an invoice is paid or a system goes offline.
How it works, what it can reach and how it is secured.
API and webhooksWorks with the tools you already use.
Each connection is set up from Settings, most with your own account at the other service, and the Integrations page there shows its status and last sync.
Inverter clouds
Huawei FusionSolar and SolarEdge, both field-tested. Sungrow, Fronius, SMA, GoodWe, Growatt, SolaX and Zucchetti/Azzurro are built, and validated on your equipment when the first system connects.
Every plan
Accounting
Xero or QuickBooks: invoices go across with their customer, and payments recorded there come back to Helios. The export for your accountant — invoices, payments and VAT by rate — needs no connection.
Installer Pro · export on every plan
Card payments
Stripe or Viva, with your own account: customers pay your invoices — and, on Installer Pro, proposal deposits — by card. Card details never reach Helios.
Every plan
Connect a Microsoft 365 mailbox and mail with known leads and customers is filed on their record. With any other provider, forward or BCC to your organisation’s Helios address. Gmail is waiting for Google’s review.
Every plan
Phone
3CX: Helios looks up the caller by number as the phone rings, and every call is logged on the customer.
Installer Pro
E-signatures
DocuSign, with your own account: customers sign proposals electronically. Without it, accepting a proposal is a click.
Installer Pro, with proposals
AI apps
Claude, ChatGPT or Copilot, through the Helios MCP server: read-only, as the person who connects, with their access.
Add-on, no price of its own
How it works →API and webhooks
A documented REST API and 20 signed webhook events, for your own systems and any tool that can make an HTTPS request.
Installer Pro
How it works →The controller that runs the site — even when the internet doesn’t.
Helios Edge EMS is an on-site controller for solar + battery installations. It dispatches the battery locally, keeps running through outages, and syncs back when connectivity returns. Commercially available today.
What it runs
- Self-consumption — continuously drives grid exchange toward zero
- Time-of-use — charge off-peak, discharge through peak, within battery limits
- Custom rules — versioned rule sets with timers, applied without restarts
- Peak shaving available on request
Engineered safety, not promised safety.
- Every command passes a clamp pipeline: state-of-charge limits → the battery’s own declared limits, re-read on every write → hardware ratings → ramp limits
- The EMS verifies the observed effect of every command — if reality diverges, it falls back to safe and stays there until an operator clears it
- It never overrides the battery management system and never auto-resets faults
- The cloud cannot send it a power command — that command type doesn’t exist in the protocol
- Deterministic by design: every decision is replayable and auditable
Compatibility
Supports CNTE battery systems and Huawei SmartLogger today. Further PV-system and battery integrations are implemented per deployment, for hardware that supports it.
Talk to us about your hardware ↓Fleet view
Every EMS site visible in the platform — live state, battery health down to cell temperatures, alarms and events.
No black boxes.
Control decisions are deterministic and auditable. Savings are computed from actual tariffs. And when the data isn’t good enough to price, Helios shows no number rather than inventing one.
Pricing
Indicative pricing — final figure confirmed before payment. Prices exclude VAT (19%).
For solar installation companies: one subscription per organisation.
Book a demo — we’ll recommend the right plan for your fleet size.
Book a demoFor sites run by a Helios Edge EMS: platform access per site, priced by the usable capacity of its battery. The EMS licence itself is perpetual, and the EMS hardware and integration are scoped per project. Full pricing.
Talk to us.
Helios Energy Management Solutions · Nicosia, Cyprus 2547 · +357 99 794070 · contact@helios-energy.app