Mandatory Solar PV Policies Accelerate in Asia: Unlocking Growth for PV, BESS, and Lithium Battery Markets

Asia is entering a new stage of renewable energy deployment with the rise of mandatory solar PV policies. Instead of relying on subsidies, governments are now requiring solar PV systems to be integrated into new buildings by law. These measures are increasingly linked with energy storage systems (ESS) and battery energy storage systems (BESS) to ensure grid stability. For B2B clients—from PV manufacturers to EPC contractors and lithium battery suppliers—this marks the arrival of a policy-driven, high-certainty growth market.

Key Policy Updates Across Asia

●China: Since 2023, all new public, residential, and industrial buildings must install PV systems. The focus is on Building-Integrated Photovoltaics (BIPV), creating large-scale demand for advanced PV modules, lithium battery-based ESS, and grid-interactive solutions.

●Japan (Tokyo): From 2025, large developers are required to install solar panels on new residential buildings. This is a milestone for distributed generation in dense urban areas, driving adoption of rooftop solar + BESS packages.

●Bangladesh: Enforces rooftop PV installation for new private and government buildings while investing in public projects. However, inconsistent financial policies have weakened investor confidence, emphasizing the importance of stable PV + ESS financing models.

●Iran & Iraq: Their initiatives are mostly emergency-driven or government pilot programs, focusing on reducing energy shortages rather than full-scale building mandates.

●Malaysia: Starting in 2025, non-residential PV systems above 72 kWp must be paired with BESS or other energy storage solutions. This shift from "just generation" to PV + energy storage integration highlights the growing role of lithium-ion batteries in stabilizing renewable-heavy grids.

Market Opportunities for B2B Players

●PV and ESS Supply Chain: Rising demand for BIPV modules, inverters, lithium battery packs, and turnkey BESS solutions.

●EPC & Engineering Firms: A predictable pipeline of building projects requiring PV + ESS integration, creating opportunities for customized rooftop solar and storage solutions.

●Investors & Developers: Distributed solar combined with storage offers a secure, policy-driven business model, especially in markets that encourage net metering, virtual power plants (VPPs), and demand-side management.

Strategic Insights

Mandatory PV policies show that renewable energy is no longer just about adding generation capacity—it's about building flexible, resilient, storage-backed energy ecosystems. Successful deployment requires alignment of:

●Financial incentives (net metering, tax breaks for ESS, green financing),

●Technology standards (BIPV compliance, safety standards for lithium batteries),

●Grid measures (mandatory BESS integration, advanced energy management systems).

Companies that can provide integrated PV + BESS solutions and leverage lithium battery technology will secure a first-mover advantage in Asia's fast-evolving energy landscape.

Looking Ahead

The next phase of Asia's renewable energy policies will:

●Expand from local pilots to nationwide mandates,

●Deeply integrate BESS and smart energy storage systems,

●Accelerate BIPV adoption and lithium battery applications across urban construction.

For enterprise clients, this is more than a regulatory trend—it's a policy-backed market transformation. Early positioning in PV, BESS, and lithium batteries will be the key to capturing long-term opportunities in Asia's clean energy transition.