Households and commercial users have responded to high bills, outages, and voltage fluctuations; rooftop and behind-the-meter solar has expanded; The global energy transition is accelerating because clean technologies have become more economically viable, while fuel volatility, climate risk, and reliability concerns have become increasingly difficult to ignore. Solar photovoltaics has moved from a policy-led niche to a default option for new generation in many markets, and attention is increasingly shifting from adding capacity to operating systems with high shares of variable supply In Pakistan, rooftop and behind-the-meter solar has expanded primarily because retail tariffs and supply quality created a strong private incentive to self-generate. Households and commercial users have responded to high bills, outages, and voltage fluctuations by making investments that reduce their exposure to the grid. Instead of a purely policy-led adoption story, this is a risk and cost management choice by consumers, reinforced by the availability of imported equipment and a feasible payback logic. As penetration increases, the system effects become more visible at the feeder level: midday net load drops (and in some locations, reverses), voltage management becomes more complex, and the evening ramp steepens as solar output falls while demand remains high. These operational issues interact with a chronic financial constraint in the power sector: utilities rely on volumetric sales to recover high fixed costs, and when higher-paying customers reduce net purchases, the remaining tariff burden concentrates, intensifying debates about fairness, cost recovery, and the long-term sustainability of DISCO finances. This is the context in which the policy debate has shifted from deployment to integration, and a central element of this shift is the move from net metering toward net billing. Under net billing, the economic signal tilts toward self-consumption because exported kilowatt-hours are compensated differently from imported ones, and the consumer’s value is increasingly determined by how much solar generation can be used on site. That makes battery energy storage extremely important because it can directly reshape the customer’s net load profile. A properly sized battery can capture midday surplus and discharge later, increasing self-consumption, reducing the need to export at a lower buyback rate, and providing backup during outages. From the grid’s perspective, this same behind-the-meter storage can reduce operational stress by limiting reverse flows, smoothing net load volatility, and reducing the magnitude of evening ramps if charge and discharge behaviour is aligned with system needs. Treating storage as infrastructure also raises practical requirements that cannot be deferred. Performance expectations must be specified in usable energy terms, round-trip efficiency, and degradation rates under realistic cycling and temperature conditions. In hot climates, thermal management is a determinant of safety and longevity. Chemistry matters here as nickel-manganese-cobalt (NMC) batteries typically reach end-of-life after roughly 3,000 to 7,000 cycles at high depth of discharge, often translating to around 10 to 15 years depending on duty cycle, while lithium-iron-phosphate (LFP) batteries, now increasingly common for stationary systems, are often in the range of 4,000 to 10,000 cycles and can last 15 to 20 years with good state-of-charge and temperature management. Frequent high-power cycling accelerates degradation, and prolonged high or low state-of-charge (SoC) can also shorten battery life. Hence, installation quality and controls are part of asset management, not just commissioning. The technology pathway also matters because not all recycling is equal. Many current processes recover bulk materials by removing the aluminium frame and junction box and then mechanically shredding the laminate. This can recover glass and aluminium effectively, but often contaminates higher-value fractions such as silicon and silver, leading to downcycling where materials are recovered but cannot re-enter high-value manufacturing loops. Higher-value recycling aims for delamination, the clean separation of layers so that wafers and metals can be recovered with higher purity. Thermal processes such as pyrolysis and chemical treatments that dissolve encapsulant polymers can increase yields and preserve material quality, but they require tighter controls, higher capital investment, and better feedstock consistency. Moreover, polymer identification, particularly fluorine-containing layers in backsheets and fluoropolymer binders, is not a trivial detail: fluoropolymers such as PVDF and PTFE influence processing choices and emissions control requirements, and contamination can degrade recovery efficiency. This is why analytical sorting tools such as laser-induced breakdown spectroscopy (LIBS) are emerging as enabling infrastructure. LIBS can rapidly identify materials in photovoltaic waste, detect fluorine-containing layers, estimate their thickness, and also support battery waste sorting by identifying elemental composition in electrodes and distinguishing cathode chemistries, including single-component cathodes like LiCoO2 versus mixed oxides such as combinations involving LiMn2O4 and LiNi0.5Mn1.5O4. That distinction is operationally significant because different cathode chemistries imply different optimal recycling routes and value recovery profiles, and automated sorting raises yields while reducing process waste and hazardous handling. For Pakistan, the immediate question is how to create mechanisms that make recycling inevitable rather than optional. If the country does not create mechanisms to prioritise these end-of-life costs, the rational market outcome is underinvestment in recycling capacity and an eventual drift toward dumping, informal scrap recovery, or opportunistic export of waste. Extended Producer Responsibility (EPR) is the most direct framework here, because it internalises endof-life costs into product lifecycles and creates stable demand for collection and recycling services. In an import-dominated market, EPR can be anchored to the importer of record and enforced through customs clearance and market access requirements, effectively making compliance a condition of selling modules or storage systems. A visible eco-fee/deposit at import or point of sale can fund reverse logistics and processing, reducing the incentive to dump equipment when it reaches endof-life. A registry that links serial numbers to installers, owners, and commissioning dates would support warranty enforcement now and enable traceability later, which is essential for both PV modules and batteries, given safety risks. Standardised testing protocols are also necessary to achieve repair and reuse pathways, as many panels are decommissioned with meaningful remaining life, yet secondary markets struggle without credible certification of performance and safety. Without standards, insurers, financiers, and even building regulators may block reuse in grid-tied applications, pushing equipment prematurely into waste streams. A case study highlighting the partnership between Veolia and PV Cycle shows what industrial-scale PV recycling looks like when collection networks and processing economics are aligned. In 2018, Veolia and PV Cycle opened a facility in Rousset, France, dedicated to recycling photovoltaic panels, designed to move beyond basic recovery of glass and aluminium and toward high-efficiency separation of most module components. The process incorporates automated disassembly to separate frames and junction boxes before processing the laminate, then applies shredding followed by mechanical and chemical treatments, supported by optical sorting and other techniques to isolate glass, silicon, copper, and silver into higher-purity streams. The stated recovery performance exceeds 95% of panel materials. The downstream destination of recovered streams matters as much as the recovery rate: in this model, recovered glass is prepared as clean cullet for glass manufacturing; aluminium is refined into ingots for aluminium refineries; copper is recovered as shot for metal foundries; and plastics are converted into flakes or pellets for energy recovery, including cement plants. This highlights that the goal should not be token recycling that downcycles materials into low-value applications, but the creation of clean streams that can re-enter primary production cycles and justify investment in sorting and process control. BESS recycling needs a parallel but more safety-intensive approach. Collection and transport must adhere to strict packaging and SoC requirements to prevent thermal incidents. An end-to-end view is the need of the hour. To avoid low-value scrap pathways, investment in automated sorting and characterisation as shared infrastructure must be encouraged, potentially through concessional finance, tax incentives, or public-private facilities that serve multiple recyclers. In a system where decentralised adoption is driven by consumer economics, the critical policy task is to make circularity as inevitable as deployment.
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