Yes, construction sites can use solar power and battery energy storage to reduce diesel genset fuel use, and the clearest way to see how is to follow a site through a typical day. MPMC, a Shanghai-based manufacturer of generator sets, HBD-R mobile storage, SPK mobile solar plants and GSB hybrid power stations, supplies every part of the plan.

A Day on a Hybrid Construction Site

Morning Start-Up: Battery Covers the Peaks

Cranes, hoists and concrete pumps create sharp peaks as work begins. HBD-R mobile storage absorbs them with millisecond-level response, so a right-sized generator set runs at an efficient load of around 75% instead of being sized for the highest spike. HBD-R units from 30 kW / 61.44 kWh to 610 kW / 610.6 kWh cover sites of every size.

Midday: Solar Carries the Base Load

SPK mobile solar plants, from the automatically expanding 7.65 kWp SPK-8A to the 115.92 kWp SPK-120 in a 20HQ container, supply offices, welfare units and tools and charge the battery; the manually expanded SPK-20 adds 21.24 kWp for mid-size compounds. During sunny hours the generator set can rest.

Late Afternoon: Battery and Generator Set Share the Load

As solar output falls, the battery supplies the site, and the generator set starts when needed, running at an efficient load and recharging the battery for the evening. The EMS decides when each source runs, so crews simply plug in and work.

Evening, Night and Weekends: Silent Battery Power

Light loads for security, lighting and welfare run from the battery alone. On one UK site where generator sets were permitted from 07:00 to 17:00, Monday to Saturday, six HBD-30-60 units powered the site overnight and on Sundays, and HSL solar lighting towers can light the site with no fuel.

Table 1. Energy sources through a typical construction day

MPMC GSB-20-40 hybrid power stations, part of a ten-unit delivery combining generator set power, LFP storage and solar input.

All-in-One Option for Smaller Compounds

For site offices and welfare units, GSB hybrid power stations put a 2,375 W slide-out solar array, LFP storage from 20.4 kWh to 112.5 kWh and a generator set of 16 kW to 48 kW into one mobile unit, with outputs from 10 kVA to 120 kVA. MPMC recently delivered ten GSB-20-40 hybrid stations, and in Australia GSB units supplied 1.08 MWh of light, diesel and storage power for building construction. Up to four GSB units ship in a 20-foot container, engines come from Perkins, Kubota or Yanmar, and GSB systems carry a 2-year or 1,500-hour system warranty and a 3-year battery warranty.

What the Results Look Like

On a UK construction site, adding a 30 kW / 60 kWh HBD-R unit to a 56 kW generator set serving night loads of 3 to 6 kW stretched refuelling from every 2 days to every 7 days and maintenance from every 10 days to every 60 days. MPMC product data associates generator set and HBD-R operation with fuel savings of up to 75% and generator set life extension of up to three times, and in Australia HBD-R units totalling 560 kW / 920 kWh supported a construction carbon-reduction project.

Table 2. MPMC construction hybrid references

MPMC HBD-R Series HBD-50-100 mobile battery energy storage system.

Sites that already own generator sets can begin with HBD-R alone, since it parallels with DSE, ComAp, DEIF, Woodward, Smartgen, CAT EMCP and Cummins PCC controllers, and add SPK solar later; new sites can specify the full hybrid package from the start.

Planning a Hybrid Construction Site With MPMC

• Map loads by time of day and construction phase

• Note permitted generator set hours

• Identify space for SPK solar arrays

• Size HBD-R storage for evenings and peaks

• Contact MPMC at sales@mpmc-china.com or WhatsApp +86 150 0085 4420 for a hybrid site power plan