Model your project savings and peak-demand reduction
Calculate ROISolar + EfficiencyIntegration Calculator
Reduce consumption first with efficiency upgrades, then offset the remaining load with right-sized solar. This integrated approach delivers 70-90% total energy cost reduction with superior ROI.
YOUR FACILITY PROFILE
INTEGRATED APPROACH
SCENARIO COMPARISON
See how different approaches stack up
Solar Only
Install solar without efficiency improvements
Efficiency Only
Comprehensive energy efficiency upgrades
Integrated Solution
Efficiency first, then right-sized solar
Why the Integrated Approach Wins
Lower Total CAPEX
Smaller solar system required after efficiency upgrades reduces overall investment by RM -968K compared to solar-only approach
Higher Total Savings
Efficiency reduces consumption permanently, while solar offsets the reduced load. Combined savings: RM 241.5K/year
Faster Payback
8.8 years vs 6.5 years for solar-only. Start seeing positive cash flow sooner.
Better ROI
25-year ROI of 183% - the highest of all approaches. Every ringgit invested generates 2.8x returns.
Maximum Carbon Impact
324.9 tonnes CO₂/year reduction - equivalent to planting 14622 trees annually
GITA Tax Benefits
Solar and qualifying energy-efficiency equipment both qualify for the 60% GITA investment tax allowance, reducing effective cost accordingly
Solar + Energy Efficiency Integration FAQ
What is solar and energy efficiency integration and why does it matter?
Solar and energy efficiency (EE) integration is a sequential strategy: first reduce your facility's energy consumption through efficiency upgrades (LED lighting, EC fans, BMS), then install a right-sized solar system to offset the reduced remaining load. This approach is superior to solar-only because every ringgit of energy reduction lowers the solar system size you need, reducing capital expenditure while delivering higher combined savings. Malaysian facilities using the integrated approach typically achieve 70-90% total energy cost reduction versus 50-65% from solar alone.
What are the combined savings potential for solar and EE integration in Malaysia?
A typical Malaysian commercial facility spending RM 25,000/month on TNB bills can achieve RM 15,000-22,500/month in combined savings through integration. Energy efficiency upgrades reduce consumption by 25-35% (saving RM 6,250-8,750/month), while right-sized solar offsets 60-70% of the remaining load (saving RM 9,000-13,500/month). Annual combined savings reach RM 180,000-270,000, with both efficiency equipment and solar systems qualifying for GITA tax allowances and potentially Green SRI sukuk financing at preferential rates.
Should you do energy efficiency first or solar first?
Always implement energy efficiency improvements before solar. Reducing consumption first means you need a smaller, cheaper solar system to offset the same percentage of your bill. For example, cutting consumption from RM 25,000 to RM 16,250/month (35% EE reduction) means a solar system only needs to offset RM 16,250 rather than RM 25,000 — reducing solar CAPEX by RM 300,000-500,000. This "efficiency first" approach shortens the combined payback from 6-8 years (solar-only) to 4-5 years and maximizes 25-year ROI above 400%.
How does the integration calculator work?
The calculator models three scenarios based on your TNB monthly bill, building type, size, and efficiency package selection. For the "Solar Only" scenario, it sizes a system at 1,260 kWh/kWp/year (Trexon yield basis) to offset 60% of current consumption. For "Efficiency Only," it applies your chosen package's reduction percentage. For "Integrated," it first reduces consumption by your EE package, then sizes solar to offset 70% of the reduced load — delivering higher total savings with lower combined CAPEX. All scenarios use your actual tariff rate for accurate RM savings projections.
What is the typical payback period for an integrated solar and energy efficiency project?
Integrated projects in Malaysia achieve 4-6 year simple payback periods, combining EE payback (1.5-3.5 years depending on package) with solar payback (5-7 years standalone). With GITA tax allowances on both EE equipment and the solar system, effective payback shortens to 3.5-5 years. Green financing options — including Bank Islam's Green Term Financing and CIMB Green Equipment Financing — allow monthly repayments to be funded from monthly savings, creating a cash-flow-positive project from year one without upfront capital.
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Tell us about your facility and we'll design an integrated EE+solar plan.
- Sizing from your 12 months of TNB bills and shift pattern
- Roof, switchboard and single-line diagram reviewed by our engineers
- Available incentives (GITA for solar, subject to MGTC verification) and Solar ATAP eligibility checked for your premises
- SEDA-registered PV Service Provider (RPVSP-2026/373) · SSM 201301044881 (1074704-D)
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