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The Microsoft 365 specialists who build solar CMMS software inside your tenant.
Five Hundred is a solar CMMS on Microsoft 365, built natively inside your tenant by WIZSP — a certified Power Platform specialist. Not in a hosted cloud. Not in a vendor’s database. In yours. As a dedicated solar CMMS on Microsoft 365, Five Hundred gives O&M operators complete control over their operational data, workflows, and reporting — without a recurring subscription. Based in Craiova, Romania, WIZSP has been building custom Microsoft 365 and Power Platform solutions since 2016. We serve renewable energy operators and solar O&M companies across Europe and the UK, from multi-megawatt independent power producers to specialist O&M contractors managing portfolios on behalf of institutional investors.
Why a Solar CMMS on Microsoft 365 Outperforms Every Standalone Platform
Microsoft Power Platform Certified — Solar O&M Focused
WIZSP holds Microsoft Partner status and our team carries Power Platform certifications with specific focus on renewable energy and complex industrial workflows. We are not generalist developers who added a solar module to a generic platform. Every workflow pattern, every data model, every field-app interaction in Five Hundred was designed around the realities of solar O&M — alarm response times, OEM warranty compliance, offline field conditions, and investor reporting obligations.
The Anti-SaaS Approach: Your Software Should Work for You
We measure our success by your adoption rates, not your license fees.
Most software vendors want to rent you a black box indefinitely. WIZSP builds what we call a Glass Box solution — transparent, auditable, and deployed inside your own Microsoft Azure environment.
Your data never leaves your tenant. Your code is yours. When you want to modify a workflow, you modify it in Power Automate. When you want to audit the system, your IT team audits it directly in Dataverse. There is no vendor permission required and no change-request invoice waiting in your inbox.
This is not a philosophical position. It is an architectural fact. Five Hundred is a capital asset, not a subscription. You own it the same way you own the plant it manages.
That is the defining difference between a solar CMMS on Microsoft 365 and a SaaS subscription: one is an asset on your balance sheet, the other is a liability on your P&L.
How a Five Hundred Implementation Works
We understand the stakes in solar O&M. Downtime costs money. Missed warranty claims cost money. An O&M system that field technicians refuse to use costs the most of all.
Data Migration Without Risk
We do not hand over code and leave you to figure out the data. Every legacy asset registry, maintenance history, and compliance document is mapped, validated, and imported into the Five Hundred Dataverse environment before go-live. Your historical records travel with you.
Technician-First Configuration
The most expensive CMMS is one that sits unused. We configure the Power Apps field interface around your team’s existing workflows — not the other way around. Hands-on training for field teams is included in every implementation. Adoption is not an afterthought. It is a delivery criterion.
ROI Reporting From Day One
Live Performance Ratio and asset availability reporting is active from the moment the system goes live. Your finance team and investors see measurable impact from the first week — not after a six-month configuration period. The Customer Portal gives stakeholders self-service access to performance data without requiring a single additional Microsoft 365 licence.
Why Solar O&M Operators Choose Five Hundred
Choosing a solar CMMS on Microsoft 365 is a multi-year architectural decision — not just a software purchase. Here is what that commitment looks like with Five Hundred and WIZSP.
Certified Expertise, Sector-Specific
WIZSP is a certified Microsoft Partner with verified Power Platform expertise. Unlike horizontal CMMS vendors who serve facilities, manufacturing, and oil & gas, Five Hundred is built exclusively for solar O&M. That focus means the data model, the mobile interface, and the reporting architecture reflect how solar portfolios actually operate — not how a generic asset management platform assumes they do.
Five Hundred is the only solar CMMS on Microsoft 365 built exclusively for renewable energy portfolios — not adapted from a generic facilities or manufacturing template.
Software That Adapts to Your SOPs
Five Hundred is configured to match your Standard Operating Procedures — your PM schedules, your fault classification logic, your reporting format, your OEM warranty checklists. You do not adapt your operations to the software. The software adapts to your operations. This is what ownership looks like in practice.
An Extension of Your Team
From the first discovery call through to long-term operational support, WIZSP acts as an extension of your internal IT and operations departments. Implementation does not end at go-live. As your portfolio scales and your requirements evolve, we adapt the platform with you — without a change-request invoice for every modification.
Frequently Asked Questions About Five Hundred and WIZSP
Choosing an O&M platform is a multi-year commitment. Here is what that commitment looks like with Five Hundred and WIZSP.
Five Hundred is a CAPEX-model solar CMMS on Microsoft 365, built natively inside your Azure tenant by WIZSP — a certified Power Platform specialist based in Craiova, Romania, focusing exclusively on the renewable energy sector.
A standard Five Hundred implementation runs four to six weeks from kick-off to go-live. This includes data migration from your legacy CMMS or Excel-based system, workflow configuration aligned to your SOPs, and hands-on training for both field technicians and office staff.
In most cases, no. Five Hundred runs on Power Apps and Power Automate, which are included in standard Microsoft 365 Enterprise E3 and E5 plans. If your organisation is on a lower-tier plan, the add-on cost for Power Platform is significantly below the equivalent SaaS CMMS subscription. External stakeholders — investors, landowners — access the Customer Portal with no Microsoft licence required.
Ready to see how a solar CMMS on Microsoft 365 performs inside your own Azure tenant?
Book a technical walkthrough with a WIZSP solutions architect — no sales deck, precise answers to your specific operational situation.
