Your energy invoices, checked before they are paid
EG EnerKey receives your electricity, heating and water invoices, validates each one against metered data and tariffs, adds the accounting details and contacts the supplier when something is wrong. Your finance system only receives the correct invoice.

What happens to most energy invoices today
Most energy invoices are correct. The work is proving it.
Too many approvals
Accounts payable, property managers, supervisors. Each hand-off adds delay.
Nobody trusts the cost data
Finance enters numbers by hand. Budget vs. actual is always behind.
Tenant billing runs on memory
Someone updates a spreadsheet each month. Numbers drift. Disputes follow.
We can handle your entire energy invoice flow
You get one flow for electricity, heating, and water. Every invoice linked to consumption data. Deviations flagged early. Invoice history and cost allocation visible in EG EnerKey. Tenant billing data delivered directly in your agreed format. Your tenants know exactly what they are paying for.
Manually
Invoices checked manually, if at all
Cost data keyed in by hand, always lagging
Accounting details added manually per invoice
Tenant billing based on estimates and spreadsheets
Errors caught after payment (if ever)
With EG EnerKey
Every invoice validated against metered data and tariff records
Actual costs flow into reporting automatically, budget vs. actual always current
Invoices arrive correctly coded and payment-ready
Costs allocated by actual consumption, billing data delivered monthly
Errors flagged before payment, supplier contact handled by EG EnerKey
Three steps. You do the first one. We handle the rest.
Your electricity, heating and water suppliers send invoices to us instead of directly to you. Onboarding includes redirecting the invoices from your energy suppliers and configuring the service. Scope and timeline are agreed during the intro process and sized to your portfolio. Your existing systems stay in place.
Each invoice is checked against metered consumption and tariff data. Accounting details are added automatically. Cost data flows into EG EnerKey reporting. If something is wrong, our service team contacts the supplier directly. When a supplier corrects an error, only the corrected invoice reaches you. When a supplier corrects an error, only the corrected invoice reaches you.
Validated, coded, and sent to your finance system without delay. If you have multi-tenant properties, tenant billing data is generated and delivered automatically in your preferred format.
Running in production, every month
Used by organisations across retail, telecom, banking, property management, and the public sector in Finland.
10,000+
Invoices validated per month
1,000+
Tenant distributions per month
Near-zero
Churn across existing customers
Start where it makes sense for you
You do not need to buy the full pipeline on day one. Most customers start with cost reporting and scale up as they see results.
Start with cost reporting
Get actual energy costs into your reporting without manual data entry. Invoices pass through EG EnerKey briefly, cost data is captured, and the invoice continues to your finance system. Budget vs. actual is always current.
This is the natural starting point. Upgrade to full validation when you are ready.
Best for: Organisations that handle supplier disputes directly but need actual cost data in reporting.
Add invoice validation
Everything in cost reporting, plus consumption cross-checked against metered data and prices verified against tariff records. Accounting details added automatically. Invoices arrive at your finance system correctly coded and payment-ready.
Best for: Large portfolios where accuracy and payment efficiency matter.
Extend to tenant billing
For multi-tenant properties where one invoice covers the entire building. EG EnerKey allocates costs across tenants based on actual metered consumption and delivers billing data in PDF, CSV, or TEAPPS XML.
Best for: Tenant billing is built from validated supplier invoices, not from cost calculations. District heating pricing models keep changing. A billing spreadsheet doesn’t.
Common questions about our services

No. EG EnerKey works alongside your current finance and property systems. Invoices are delivered in your existing formats. Nothing changes on your side except who receives the invoice first.
Validation, enrichment, and cost reporting are fully automated. Your team handles exceptions and tenant data updates. When an invoice is wrong, EG EnerKey contacts the supplier directly.
Yes. Most customers start with cost reporting, the lightest entry point. You can add validation and tenant billing later. The services share the same invoice flow, so scaling up is straightforward.
Scope and timeline are agreed during the intro process. Onboarding includes redirecting invoices from your energy suppliers and configuring the service. It is sized to the portfolio.
PDF, CSV, or TEAPPS XML. EG EnerKey delivers the billing data in the format your invoicing system requires. Your team handles the actual invoicing to tenants.
The service handles invoices from multiple electricity, heating, and water suppliers regardless of format. Data is normalised, validated, and output as standardised cost data.
Metered consumption data per tenant (from EG EnerKey SaaS) and a price basis. Tenant changes must be communicated so records stay current.
Both. Property owners benefit from validation, cost control, and tenant allocation. Large tenants benefit from centralised invoice handling and cost reporting across multiple facilities. The services are modular.
