Operation and maintenance for solar and storage
Commissioning is the beginning of an energy asset's life, not the end of our accountability. Terragreen provides structured operation, maintenance, and performance monitoring for solar plants, battery storage installations, and distributed telecom power. We work under formal service agreements with response times, preventive schedules, and reporting baselines agreed in writing.
A Terrakraft India company. Available for systems engineered by Terragreen and, following a technical asset review, for infrastructure built by third parties.
A structured framework from asset review to continuous reporting
We manage operational risk through a repeatable, four-stage lifecycle process:
Asset Review
We inspect physical array conditions, inverter logs, thermal hotspots, battery cell balances, and grounding resistance before assuming operational responsibility.
Service Agreement
We establish clear contractual scopes—defining scheduled service visits, consumable replenishment, and emergency response tiers.
Monitor and Maintain
Automated telemetry flags string-level faults, inverter trips, or cell temperature spikes, dispatching field crews with pre-identified diagnostic data.
Report and Improve
Monthly reports compare actual generation and battery round-trip efficiency directly against your baseline PVSyst model and utility billing records.
Energy that stays on.
Commissioning is the beginning of an energy asset's life, not the end of our accountability.
What we maintain across three infrastructure sectors
Solar plant O&M
PV module washing schedules, string combiner inspection, central/string inverter servicing, transformer oil BDV testing, and drone thermography.
Preventing soiling derating and eliminating avoidable generation clipping.
Explore solar plant O&M
Battery storage O&M
Cell-level State-of-Health (SoH) tracking, HVAC thermal management servicing, fire-suppression checks, and BMS/PCS calibration.
Enforcing cell safety limits, preventing capacity degradation, and providing domestic spares.
Explore battery storage O&M
Telecom tower O&M
Cluster-based flying crews, remote monitoring into your NOC, generator run-hour tracking, and 48 V DC power plant upkeep across distributed networks.
Maximizing site uptime while systematically reducing diesel generator fuel spend.
Explore telecom tower O&MClear boundaries for operations and maintenance contracts
| Service component | Standard preventive O&M | Comprehensive O&M | What remains client scope |
|---|---|---|---|
| Monitoring & Telemetry | Daily automated monitoring, fault alert dispatch. | Daily monitoring, dedicated engineer review. | Providing stable LAN or 4G data SIM at site. |
| Preventive Maintenance | Scheduled quarterly mechanical and electrical checks. | Monthly electrical checks, quarterly thermography. | Safe physical site access and shutdown windows. |
| Corrective Maintenance | Labour included; response times agreed in writing. | Labour and minor consumables included. | Major equipment replacement outside warranty. |
| Spare Parts Management | Recommended spares list supplied; inventory managed. | Critical operational spares stocked locally. | Capital purchase of major balance-of-plant spares. |
| Reporting | Quarterly performance and availability report. | Monthly generation, loss, and PR analysis. | Utility billing records for tariff reconciliation. |
Frequently asked questions about our O&M services
Do you maintain solar and storage systems that Terragreen did not build?
Yes. We take on third-party installations following a technical Asset Review. Our engineers audit component quality, single-line diagrams, and past maintenance logs to establish an agreed operating baseline before entering a service agreement.
What are Terragreen's emergency response times?
Response times are specified in writing in your Service Agreement. They depend on site geography, facility criticality, and whether the site carries dedicated on-site personnel or cluster-based flying support.
Commission a service review for your energy assets
Share your system capacity, installation single-line diagram, and current maintenance history. Our operations team will prepare a structured O&M proposal.