Distributed Storage

Spanish startup Nomad Solar Energy and Full&fast have deployed a portable solar-plus-storage system at a Madrid farm to provide off-grid power for irrigation.

The German company is introducing its own heat pump with a heating output of up to 16 kW and a maximum flow temperature of 80 C. The system is designed to meet rising demand in large single-family homes and unrenovated existing buildings.

Scientists in China have created an optimization technique for an electric vehicle charging station that uses PV, battery storage, and a vehicle-to-grid operation. Considering the uncertainty of PV generation and the randomness of EV load, the system uses two-level optimization, day-ahead and intra-day.

Striking a careful balance between technical limitations, market ambitions, and contractual realism in operating battery energy storage systems (BESS) is no easy task. Rigid battery warranties can often be a make-or-break factor in BESS asset management. As a result, many industry players now argue that adopting a more flexible approach to warranties could unlock greater value from these inherently flexible assets.

A Japanese research team has evaluated the affordability of photovoltaic-battery systems featuring heat-pump water heaters and air conditioning units across nine regions of Japan. They analyzed three price policies and two loan types, identifiying a tradeoff between net demand and cost according to the capacity of the solar-plus-storage system.

Scientists in Hungary have built a prototype of a thermal distillation device, supported by PV power. The PV panels use an IoT component that self-cleans when dust is detected and cools itself when the temperatures are too high. The system achieved a daily freshwater yield of 6.1 L/m2⋅day.

Czechia’s largest electricity distributor, ČEZ Distribuce, says 9,084 solar power plants were connected across its network during the first half of the year, 86% of which were equipped with an energy storage system.

The stackable battery ranges 4.9 kWh to 19.6 kWh per unit while the inverter is available in ranges from 3.8 kW to 13 kW. The company also introduced a meter socket adapter to avoid triggering costly main panel upgrades.

A hands-on with the Apex 300 reveals it has unique strengths for those looking for portable power in a design that is made to expand through accessories.

A tender is open in Micronesia for the engineering, procurement and construction of hybrid solar minigrid systems at three villages on the Fefen Islands. The closing date for applications is October 27.