At Panel Upgrade Experts, we believe in keeping our clients informed about the solar technology we use. Earlier in this series, we introduced the APsystems QS1A microinverter. In this article, we highlight the next generation of that same trusted brand — the APsystems DS3 Microinverter — and explain why it’s one of our preferred products for Calgary installations.
What Is the APsystems DS3 Microinverter?
The DS3 is APsystems’ third-generation dual-module single-phase microinverter. Designed to pair with modern high-efficiency solar panels, the DS3 achieves a peak conversion efficiency of 97.2 percent. According to APsystems’ product release, the DS3 was introduced as the world’s most powerful dual-module microinverter series, combining the strengths of their previous YC600 and QS1 platforms.
Homeowners already using APsystems products such as the QS1 or YC600 will appreciate that the DS3 series maintains full compatibility with existing accessories and gateways. That means Calgary homeowners can upgrade or expand their solar systems without having to replace monitoring hardware.
DS3 Microinverter vs. QS1A Microinverter
The earlier QS1A model could connect four panels per unit and deliver up to 1200 VA of AC output. The DS3, by comparison, connects two panels per inverter, each with its own independent Maximum Power Point Tracking (MPPT). This design ensures more efficient performance under partial shading — especially useful for Calgary rooftops affected by snow or nearby obstructions.
The DS3 also introduces encrypted Zigbee communication, improved heat dissipation, and a lighter internal design with 20 percent fewer components. The entire unit is encapsulated in silicone for superior weatherproofing and temperature endurance — an advantage during Calgary’s cold winters and hot summers.
DS3 Model Options
The DS3 series is available in multiple output variants so that installers can match the inverter to specific panel wattages:
- DS3-S – Designed for standard PV modules up to 640 VA per channel.
- DS3-L – Balanced model providing up to 730 VA per channel.
- DS3 – High-capacity version delivering up to 880 VA per channel for premium panels.
For more detailed specifications, view the official APsystems DS3 datasheet.
Why We Use APsystems DS3 Microinverters in Calgary
- High efficiency for better solar harvest in Calgary’s bright climate.
- Independent MPPT on each input to limit shading losses from snow or vent stacks.
- Durable, weather-resistant construction rated for Alberta temperature swings.
- Lightweight design and simplified installation for cleaner rooftop layouts.
- Encrypted Zigbee wireless monitoring for reliable system data.
Trusted Technology for Local Conditions
APsystems is a global leader in microinverter and MLPE technology, with operations in more than 100 countries. Their products are engineered for long service life and dependable operation. That’s why Panel Upgrade Experts specifies APsystems DS3 microinverters for our Calgary solar installations — they perform efficiently, integrate seamlessly, and stand up to Alberta’s challenging climate.
If you’re planning a solar installation or upgrade, contact our team today to learn how the DS3 microinverter can maximize your solar performance.
