Safety first
- Electrical isolation and safe work practices
- Appropriate PPE and site controls
- Pre-energization inspection
- Proper protection and grounding
- Safe battery handling
We don't build overnight. We take pride in doing things right.
At STS, we don't rush installations. We prioritize safety, quality, and reliability over speed. There is always time to do it right. A job done quickly, does not guarantee workmanship quality.
Safety, integrity & customer commitment.
At STS, we don't just install systems—we build trust through transparency, safe practices, quality workmanship, and dependable support.
We don't just do business. We build with compassion and purpose.
At STS, we take the time to get every detail right. We respect the beauty and aesthetics of your home, carefully designing everything to complement your property's appearance while ensuring safety, performance, and long-term reliability. Solar should not only power your home efficiently—it should also enhance its beauty.
Why Choose Us
Technical services & support
Beyond installation: keeping the system safe, functional and performing.
Commissioning
Pre-energization checks, configuration, functional testing and handover documentation.
Troubleshooting
Systematic fault diagnosis for inverter, battery, PV and electrical issues.
Preventive maintenance
Inspection, torque checks, cleaning, protection checks and performance review.
Monitoring
Remote monitoring setup and review of operating data, alarms and system trends.
Corrective works
Replacement, repair coordination and field rectification of identified issues.
Client training
Operator orientation covering normal operation, alarms, shutdown and basic maintenance.
Safety, quality & professional workmanship
Every project is approached as an engineered electrical installation — not simply a product installation.
Quality workmanship
- Correct cable sizing and routing
- Proper terminations and torque control
- Neat, serviceable installations
- Weatherproofing and sealing
- Installation documentation
Commissioning discipline
- Parameter verification
- Protection and breaker checks
- PV/battery functional tests
- Monitoring verification
- Client orientation & handover
Quality workmanship: neat, serviceable installations.
Equipment & technology
We work with proven technologies.
Selected according to system requirements, site conditions and project objectives.
PV modules
High-efficiency mono / N-type and bifacial technologies.
Hybrid inverters
Deye and other suitable inverter platforms.
Battery storage
LiFePO4 systems with intelligent BMS.
Protection
AC/DC breakers, SPDs, isolators and grounding systems.
Balance of system
Cables, connectors, mounting structures and electrical accessories.
Monitoring
Cloud/remote monitoring and system performance tracking.
Our Technology Partners
- Deye
- Sungrow
- SolaX
- AIKO
- LVTopSun
- MERITSUN
- Bifacial panels
- LiFePO4 batteries
What separates us from the rest
We are not #1.
We are the only one.
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Technical ownership
One team accountable from design through commissioning and support.
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Practical engineering
Solutions sized around actual loads, operating patterns and site conditions.
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Service mindset
Clear communication, documentation and responsive technical support.
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Long-term thinking
Systems designed for maintainability, safety and future serviceability.
Our Project Support Strategy
Flexible engagement from a complete turnkey system to targeted technical assistance.
Turnkey EPC
Design → Procurement → Installation → Commissioning → Handover
Best for clients seeking a single technical partner.
Supply & installation
Equipment supply, installation, configuration and commissioning based on approved design and scope.
Technical support / O&M
Inspection, troubleshooting, preventive maintenance, monitoring and corrective technical works.
About Us
About Solar Technical Services
A technical services partner focused on practical, reliable and maintainable energy solutions.
Who We Are
Since 2018, Solar Technical Services provides end-to-end technical services for solar PV, hybrid energy systems, energy storage, solar pumping and related technical infrastructure.
What We Do
We combine system design, procurement, installation, commissioning, troubleshooting and after-sales support to deliver solutions that work in real operating conditions.
Our Approach
- Safety first
- Engineering-driven
- Quality workmanship
- Transparent scope
- Practical system sizing
- Long-term service support
Mission & Vision
Helping businesses and homeowners reduce electricity costs, improve energy reliability, and contribute to a cleaner, more sustainable future through innovative and dependable solar energy solutions.
Backed by experienced engineers and skilled technical personnel, we deliver projects that comply with applicable electrical standards, manufacturer specifications, and industry best practices while maintaining a strong commitment to safety, quality, and customer satisfaction.
Mission
- Deliver high-quality solar energy systems tailored to each client's needs.
- Promote energy independence through efficient renewable energy technologies.
- Provide exceptional workmanship and long-term customer support.
- Uphold the highest standards of safety, integrity, and professionalism.
Vision
To become one of the Philippines' most trusted providers of innovative, reliable, and sustainable renewable energy solutions, empowering communities and businesses through clean energy.
Our Services
Core capabilities
From initial assessment through commissioning and ongoing technical support.
Solar PV · Hybrid / Off-Grid · Battery Storage · Solar Pumping
Solar PV systems
Grid-tied, hybrid and off-grid PV system design, supply and installation.
Energy storage
LiFePO4 battery systems, BMS integration, backup strategy and energy management.
Hybrid inverters
Installation, configuration, commissioning and troubleshooting of hybrid inverter systems.
Solar pumping
Solar-powered water pumping, deep-well support, plumbing and system integration.
Maintenance & O&M
Preventive maintenance, system inspection, performance checks and corrective works.
Technical services
Electrical, structural and related site works supporting complete energy projects.
Who we serve
Every property is different. Factors such as electricity consumption, available roof space, and energy usage help determine which solar setup may be suitable.
Residential
Explore solar options suited to your household's electricity consumption and property needs.
Homes in Bataan and nearby provinces
Commercial
Discover potential solar solutions for your commercial property's energy requirements and operating needs.
Genpact LLC – Philippines · Vista Mall Balanga City · Bataan Commercial Enterprise
Restaurants & cafés
Supporting small and large scale businesses with smart energy solutions is what we do best.
Mr. GOAT Biryani, San Jose, Balanga City
Resorts
16 kW solar hybrid system with 30 kWh LiFePO4 battery at Villa Carmen Resort, Cabcaben, Mariveles.
Villa Carmen Resort · Alfonso Resort, Botolan, Zambales
Churches
Low electricity costs, long-term investment, energy independence and reliable power during outages.
Binuangan Methodist Church, Bagac · 8 kW solar hybrid system
Schools & day care
“Look how the sun powers learning!”
Brgy. Wakas Day Care Center, Orion · 10 kW Deye on-grid system
Healthcare
Commercial solar system.
Medicura Health Hub
Maintenance & restoration
Inspection, troubleshooting, preventive maintenance, monitoring and corrective technical works.
Systematic fault diagnosis for inverter, battery, PV and electrical issues
Solar photovoltaic systems
Engineered for energy savings, resilience and dependable daily operation.
Hybrid solar systems combine the best of grid-tied and off-grid solar systems. They can either be described as off-grid solar with utility backup power, or grid-tied solar with extra battery storage.
Solar + grid
Grid-tied solar PV
Designed primarily to offset daytime energy consumption and reduce electricity costs.
Typical applications
- Commercial and industrial facilities
- Retail and office buildings
- Residential installations
- Net-metering projects
STS projects: 10 kW Deye on-grid system at Brgy. Wakas Day Care Center; 8 kW SolaX grid-tie inverter (2021).
Solar + battery + grid
Hybrid on-grid
Combines off-grid and grid-tie functions. Like a normal on-grid inverter, it can export power to the utility through net metering.
Key benefits
- Backup power capability
- Peak and daytime energy management
- Reduced grid dependence
- Flexible operating modes
How it works: solar runs the house loads first, extra power charges the battery, and the battery works during outages. The battery stays on standby, so it can be limited to about one charge and discharge cycle a day, which extends battery life.
Solar + battery, utility backup
Hybrid off-grid
An off-grid inverter with a built-in solar charge controller and an AC input that detects outages.
How it works
- Solar power charges the battery, then runs the house loads
- Switches to full battery mode during brownouts
- The AC input lets the grid charge the battery
- Cannot sell or export excess power to the utility
No power sharing: it switches between the utility grid and full battery mode based on battery level, which can mean several charge and discharge cycles a day and can shorten battery life.
Send us a message and tell us whether you're considering solar for your home or business.
Send us a messageOur Projects
Featured projects
From residential setups to large-scale commercial projects, we provide installation, maintenance, and restoration services you can trust.
Featured commercial project
50 kWp HV Hybrid Solar Energy System
Genpact LLC – Philippines · Vista Mall Balanga City, Bataan
- 3-Phase Hybrid Inverter
- 50 kWp
- Solar PV Array
- 60.48 kWp
- HV LiFePO4 Battery
- 61.44 kWh
- 3-Phase AC System
- 400 V
- Design, procurement, supply and installation
- System commissioning, monitoring and periodic maintenance
- HV LiFePO4 battery integration and hybrid energy management
LV hybrid solar energy systems
Bataan Province & nearby provinces. Design, procurement, supply and installation; system commissioning, monitoring and periodic maintenance; LV LiFePO4 battery integration and hybrid energy management.
18 kWp LV Hybrid
- Hybrid inverter
- 18 kWp · 1-phase
- Solar PV array
- 20 kWp
- LV LiFePO4 battery
- 32 kWh
- AC system
- 230 V · 1-phase
16 kWp LV Hybrid
- Hybrid inverter
- 16 kWp · 1-phase
- Solar PV array
- 18 kWp
- LV LiFePO4 battery
- 32 kWh
- AC system
- 230 V · 1-phase
12 kWp LV Hybrid
- Hybrid inverter
- 12 kWp · 1-phase
- Solar PV array
- 14 kWp
- LV LiFePO4 battery
- 32 kWh
- AC system
- 230 V · 1-phase
8 kWp LV Hybrid
- Hybrid inverter
- 8 kWp · 1-phase
- Solar PV array
- 8 kWp
- LV LiFePO4 battery
- 16 kWh
- AC system
- 230 V · 1-phase
Recent installations
As posted on our Facebook page, facebook.com/STSsolarservices
Restaurant
Mr. GOAT Biryani
Day care center
Brgy. Wakas Day Care Center
Church
Binuangan Methodist Church
Residential
Home in Fiesta
Hybrid system
Project in Tuyo
Residential
Home in Silver Land
Residential
6.6 kW Hybrid Home
Grid-tie
Grid-Tie System
Showing 6 of 8 recent installations
Our Packages
Hybrid on-grid solar packages
Choose a brand
Choose a size
Hybrid on-grid solar
6 kW Deye package
Typical for homes with 2× 2HP aircon.
22 kWhpotential generation per day
500–700 kWhaverage savings per month
- Solar panels
- 6.65 kW · 10 × 665 W AIKO bifacial
- Hybrid inverter
- 6 kW Deye hybrid
- Battery
- 16 kWh LiFePO4
Everything included (13 items)
- 10 pcs 665 W AIKO bifacial solar panels
- 6 kW Deye hybrid inverter
- 314Ah LVTS Gen4 LiFePO4 battery
- 1 pc 200A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 2 pcs 20A DC MCB and 2 pcs DC SPD
- 2 pcs CHINT AC MCB 63A and AC SPD
- 8 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 15 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Hybrid on-grid solar
8 kW Deye package
Typical for homes with 3× 2HP aircon and a 1HP water pump.
35 kWhpotential generation per day
800–1,000 kWhaverage savings per month
- Solar panels
- 9.31 kW · 14 × 665 W AIKO bifacial
- Hybrid inverter
- 8 kW Deye hybrid
- Battery
- 16 kWh LiFePO4
Everything included (13 items)
- 14 pcs 665 W AIKO bifacial solar panels
- 8 kW Deye hybrid inverter
- 314Ah LVTS Gen4 LiFePO4 battery
- 1 pc 250A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 3 pcs 20A DC MCB and 3 pcs DC SPD
- 2 pcs CHINT AC MCB 80A and AC SPD
- 14 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 21 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Hybrid on-grid solar
12 kW Deye package
Typical for homes with 5× 2HP aircon.
45 kWhpotential generation per day
1,200–1,500 kWhaverage savings per month
- Solar panels
- 12 kW · 18 × 665 W AIKO bifacial
- Hybrid inverter
- 12 kW Deye hybrid
- Battery
- 16 or 32 kWh LiFePO4
Everything included (13 items)
- 18 pcs 665 W AIKO bifacial solar panels
- 12 kW Deye hybrid inverter
- 314Ah LVTS Gen4 LiFePO4 battery
- 1 pc 250A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 3 pcs 20A DC MCB and 3 pcs DC SPD
- 2 pcs CHINT AC MCB 80A and AC SPD
- 14 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 27 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Hybrid on-grid solar
16 kW Deye package
Typical for homes with 6× 2HP aircon.
55 kWhpotential generation per day
1,500–1,800 kWhaverage savings per month
- Solar panels
- 15.96 kW · 24 × 665 W AIKO bifacial
- Hybrid inverter
- 16 kW Deye hybrid
- Battery
- 16 or 32 kWh LiFePO4
Everything included (13 items)
- 24 pcs 665 W AIKO bifacial solar panels
- 16 kW Deye hybrid inverter
- 314Ah LVTS Gen4 LiFePO4 battery
- 1 pc 250A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 3 pcs 20A DC MCB and 3 pcs DC SPD
- 2 pcs CHINT AC MCB 100A and AC SPD
- 30 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 36 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Choose a size
Hybrid on-grid solar
6 kW Hopetrek package
Typical for homes with 2× 2HP aircon.
22 kWhpotential generation per day
500–600 kWhaverage savings per month
- Solar panels
- 6.3 kW · 10 × 630 W Tier 1 bifacial
- Hybrid inverter
- 6 kW Hopetrek hybrid
- Battery
- 16 kWh LiFePO4
Everything included (13 items)
- 10 pcs 630 W Tier 1 bifacial solar panels
- 6 kW Hopetrek hybrid inverter
- 314Ah / 16 kWh Hopetrek LiFePO4 battery
- 1 pc 160A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 2 pcs 20A DC MCB and 2 pcs DC SPD
- 2 pcs CHINT AC MCB 80A and AC SPD
- 8 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 15 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Hybrid on-grid solar
10 kW Hopetrek package
Typical for homes with 4× 2HP aircon.
36 kWhpotential generation per day
900–1,000 kWhaverage savings per month
- Solar panels
- 10 kW · 16 × 630 W AIKO bifacial
- Hybrid inverter
- 10 kW Hopetrek hybrid
- Battery
- 16 or 32 kWh LiFePO4
Everything included (13 items)
- 16 pcs 630 W AIKO bifacial solar panels
- 10 kW Hopetrek hybrid inverter
- 314Ah / 16 kWh Hopetrek LiFePO4 battery
- 1 pc 200A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 2 pcs 20A DC MCB and 2 pcs DC SPD
- 2 pcs CHINT AC MCB 80A and AC SPD
- 14 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 24 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Hybrid on-grid solar
12 kW Hopetrek package
Typical for homes with 4× 2HP aircon.
45 kWhpotential generation per day
1,000–1,200 kWhaverage savings per month
- Solar panels
- 12.6 kW · 20 × 630 W Tier 1 bifacial
- Hybrid inverter
- 12 kW Hopetrek hybrid
- Battery
- 16 or 32 kWh LiFePO4
Everything included (13 items)
- 20 pcs 630 W Tier 1 bifacial solar panels
- 12 kW Hopetrek hybrid inverter
- 314Ah / 16 kWh Hopetrek LiFePO4 battery
- 1 pc 250A MCCB battery breaker
- 1 lot 70 mm² battery cable
- 3 pcs 20A DC MCB and 3 pcs DC SPD
- 2 pcs CHINT AC MCB 80A and AC SPD
- 14 mm² AC input/output power cable
- 6 mm² PV cable with 32 mm HDPE Flexcon
- 8 mm² grounding cable
- 3-rail PV mounting system (typhoon resistant)
- 30 pcs aluminum alloy 2.4 m railings with connectors
- 1 lot L-foot, clamps and grounding lugs
Ask for a quotation
Free consultation and quotation
Potential generation and savings depend on battery storage capacity and power usage pattern. Our packages include installation; the net meter application is excluded.
Our Process
Project delivery method
A structured process designed to reduce technical risk and ensure a clean handover.
We prioritize system stability, safety, and long-term reliability over speed. A job done quickly is not necessarily a job done right. We take the time to ensure every installation meets the standards of quality and workmanship your system deserves.
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01
Site assessment
Load review, electrical inspection, roof/structure review and project requirements.
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02
Engineering & design
System sizing, single-line concept, equipment selection and installation planning.
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03
Procurement
Equipment and materials sourced to approved specifications and project requirements.
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04
Installation
Professional installation with emphasis on workmanship, safety and code compliance.
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05
Testing & commissioning
Electrical checks, configuration, functional testing and performance verification.
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06
Handover & support
Documentation, client orientation, monitoring setup and after-sales technical support.
We don't build overnight. We take pride in doing it right.
Send us a messageReviews
What our clients say
Reviews on our Facebook page. Read them on Facebook
Recommends STS
“Quality service you can trust! What I really appreciate is their honesty and professionalism. No sugarcoating—they will tell you both the good and the bad, and they make sure you understand what you're getting. They also prioritize safety and proper installation, ensuring the system is installed according to standards and is safe and reliable. Highly recommended for anyone looking for a solar installer who values quality, transparency, and doing things right.”
Recommends STS
“Maganda, Mabait at maayos kausap. Ipapaliwanag din sayo ang mga dapat iconsider bago ka kumuha ng package para mameet ang expectation at mga kailangan mo kaya talaga namang sulit ang magiging bayad mo sa kanila. 2nd time na namin kumuha at talagang hands on sila everytime na may question ka. Thank you po at sa uulitin.”
“Good, kind and easy to talk to. They explain what you should consider before getting a package so it meets your expectations and needs, so what you pay is really worth it. This is our second time getting a system from them, and they're hands-on every time you have a question. Thank you, and until next time.”
Recommends STS
“Highly recommended ang Solar Technical Service! Madaling kausap ang team at very accommodating sila sa lahat ng tanong namin. … malinis din ang pagkakagawa. Ramdam mo na alam nila talaga ang ginagawa nila. Sobrang satisfied kami sa serbisyo at excited na makita ang mas malaking tipid sa kuryente. Salamat sa mahusay na trabaho!”
“Highly recommend Solar Technical Services! The team is easy to talk to and very accommodating with all our questions. … the workmanship is clean. You can tell they really know what they're doing. We're very satisfied with the service and excited to see bigger savings on electricity. Thank you for the great work!”
Areas We Serve
Bataan Province & nearby provinces.
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Bataan
Our office is here
No. 001 Access Road, Tenejero, Balanga City, Bataan 2100, Philippines Zambales
Pampanga
Tarlac
Frequently Asked Questions
Send us a message and tell us whether you're considering solar for your home or business.
Message us on MessengerHow much does a solar setup cost?
Every property is different. Factors such as electricity consumption, available roof space, and energy usage help determine which solar setup may be suitable. Send us a message for a free consultation and quotation.
How long does installation take?
We don't build overnight. Others are proud to say installation will be complete in 1 to 2 days, but that's not a sign of quality workmanship. Every project follows our project delivery method: site assessment, engineering and design, procurement, installation, testing and commissioning, and handover and support. We take pride in doing it right.
Do you have backup power during brownouts?
Yes, with a hybrid system. Hybrid systems with LiFePO4 batteries keep power on during outages, because the battery works during brownouts. Our energy storage work covers LiFePO4 battery systems, BMS integration, backup strategy and energy management.
Grid-tied, hybrid on-grid or hybrid off-grid: which do I need?
Grid-tied solar PV is designed primarily to offset daytime energy consumption and reduce electricity costs. Hybrid solar combines solar generation, battery storage and grid/generator support for greater energy resilience. A hybrid on-grid inverter can export power through net metering; a hybrid off-grid inverter cannot. Factors such as electricity consumption, available roof space, and energy usage help determine which setup may be suitable. Compare the system types.
Can I export power through net metering?
Hybrid on-grid and grid-tie inverters can export power to the utility under net metering. Hybrid off-grid inverters cannot sell or export excess power. Our packages include installation; the net meter application is excluded.
What is included in an installation?
Every project is approached as an engineered electrical installation, not simply a product installation. Our equipment covers PV modules, hybrid inverters, LiFePO4 battery storage with intelligent BMS, protection (AC/DC breakers, SPDs, isolators and grounding systems) and balance of system (cables, connectors, mounting structures and electrical accessories). Project delivery runs from site assessment through testing, commissioning, handover and support.
Do you maintain or restore existing systems?
Yes. Our technical support / O&M covers inspection, troubleshooting, preventive maintenance, monitoring and corrective technical works, including systematic fault diagnosis for inverter, battery, PV and electrical issues.
Is Solar Technical Services a registered business?
Yes. DTI Permit No. 1668844, Business Permit No. 688204 and VAT Reg. TIN 289-853-975-0003. Our technical team is headed by Johndale Yuson, REE, and our office is at No. 001 Access Road, Tenejero, Balanga City, Bataan 2100.
Where are you located, and do you serve my area?
Our office is at No. 001 Access Road, Tenejero, Balanga City, Bataan 2100. We serve Bataan Province and nearby provinces. See the areas we serve.
Contact Us
Free consultation and quotation.
High electricity bills? It may be time to explore solar energy! Send us a message and tell us whether you're considering solar for your home or business. Our team can guide you on the next steps toward a solar assessment and quotation.
- 1Message or call STS for a free consultation
- 2Assessment: electricity consumption, roof space and energy usage
- 3Quotation and system recommendation
- 4Installation
- Mobile
- 0919 512 5627
- Landline
- (047) 275 2018
- facebook.com/STSsolarservices
- Office
- No. 001 Access Road, Tenejero, Balanga City, Bataan 2100